Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

Coherent Oscillations in an Exciton-Polariton Josephson Junction
Arxiv.org ^ | K. G. Lagoudakis

Posted on 04/06/2013 9:37:08 PM PDT by Kevmo

Coherent Oscillations in an Exciton-Polariton Josephson Junction

K. G. Lagoudakis1, B. Pietka1, M. Wouters2, R. André3, B. Deveaud-Plédran1 1ICMP, Ecole Polytechnique Fédérale de Lausanne(EPFL),1015 Lausanne, Switzerland. 2ITP, Ecole Polytechnique Fédérale de Lausanne(EPFL),1015 Lausanne, Switzerland. 3Institut Néel, CNRS, Grenoble, France.

Abstract:

We report on the observation of spontaneous coherent oscillations in a microcavity polariton bosonic Josephson junction. The condensation of exciton polaritons takes place under incoherent excitation in a disordered environment, where double potential wells tend to appear in the disordered landscape. Coherent oscillations set on at an excitation power well above the condensation threshold. The time resolved population and phase dynamics reveal the analogy with the AC Josephson effect. We have introduced a theoretical two-mode model to describe the observed effects, which allows us to explain how the different realizations of the pulsed experiment have a similar phase relation.

----------------------------------

In this work we have provided experimental evidence of coherent oscillations in a Bosonic Josephson junction formed by two exciton polariton condensates created under nonresonant pulsed excitation in a double well geometry. We have shown the simultaneous existence of population and phase oscillations and have carefully evaluated their amplitudes and average values. The saw-tooth like oscillations persist for the whole life time of the condensates and are the polariton analog of the AC Josephson regime. Our theoretical analysis shows that the Josephson oscillations survive the realization averaging linked with the random initial phase, though with reduced amplitude, thanks to a spontaneous synchronization mechanism that only appears above a critical pump intensity. The present realization of the Josephson effect relies on the accidental presence of coupled wells in our disordered microcavity. Controlled growth of polariton traps with mesa structures [18] and micropilars [19] will allow for a more systematic analysis of the different regimes of Josephson oscillations, where polariton-polariton interactions can play a more pronounced role. Also, combining nonresonant with resonant excitation will provide full control over the initial conditions of the Josephson oscillations.


TOPICS: Science
KEYWORDS: canr; cmns; coldfusion; lenr; scientism

1 posted on 04/06/2013 9:37:08 PM PDT by Kevmo
[ Post Reply | Private Reply | View Replies]

To: dangerdoc; citizen; Liberty1970; Red Badger; Wonder Warthog; PA Engineer; glock rocks; free_life; ..

The Cold Fusion/LENR Ping List

http://www.freerepublic.com/tag/coldfusion/index?tab=articles


http://lenr-canr.org/


2 posted on 04/06/2013 9:37:59 PM PDT by Kevmo ("A person's a person, no matter how small" ~Horton Hears a Who)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Kevmo

Another “perpetual motion” machine?


3 posted on 04/06/2013 9:38:28 PM PDT by 4Runner
[ Post Reply | Private Reply | To 1 | View Replies]

To: Kevmo
Coherent Oscillations in an Exciton-Polariton Josephson Junction

Well thank God for THAT!

4 posted on 04/06/2013 9:38:45 PM PDT by Lazamataz ("AP" clearly stands for American Pravda. Our news media has become completely and proudly Soviet.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Kevmo

“Coherent Oscillations in an Exciton-Polariton Josephson Junction”

You do know this sure sounds naughty, don’t you?


5 posted on 04/06/2013 9:38:45 PM PDT by SatinDoll (NATURAL BORN CITZEN: BORN IN THE USA OF CITIZEN PARENTS.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: All; y'all; et al



-Interesting discussion regarding this paper over on Vortex-L

http://www.mail-archive.com/vortex-l@eskimo.com/msg78659.html

Re: [Vo]:how gamma radiation is thermalized

Axil Axil Sat, 06 Apr 2013 15:05:48 -0700

The horse will never drink muddy water… You know...The pot calling the
kettle black. How can a true believer i the Hydrino theory of the world
make such a judgment? As for “and muddy thinking will not suffice in
science.” A quote from Peter
Hagelsteinabout
the danger of closed minds in science:
“It's(LENR) not going to happen anytime soon, most likely. For example the
physicist who was one of the organisers of the May 1st Baltimore session in
1989 that debunked cold fusion was a fellow by the name of Steve Koonin.
[He] was recently appointed to be under-secretary in charge of research at
the Department of Energy. As a result, basically part of his success and
part of his reputation was made based on killing cold fusion. He's now in a
position of responsibility for research at the DoE, you can imagine what
kind of difficulties that leads to in terms of trying to move cold fusion
research to the point where you get funding, or you try to remove the taint
from it. The folks that debunked cold fusion in 1989, many of them have
profited by their actions, and we will likely continue to pay for that for
years to come.” You know again...The pot calling the kettle black. "The
explanation offered violates conservation of momentum and is obviously
false." Conservation laws are not always conserved on the subatomic scale.
"The paper cited does not mention gammas, requires cryogenic temperatures
near absolute zero, and in point of fact - the effect would be complexly
destroyed by gamma radiation and has no applicability to gamma
shielding." requires
cryogenic temperatures near absolute zero? The reference does not say
this, I know I read the article. The article says
This makes exciton polaritons very attractive in the sense that they are a
high temperature quantum fluid.



300K is the high temperature sited

see

http://www.lpn.cnrs.fr/en/GOSS/CFMC.php



other references say the temperature can range as high as 2600K


I will connect the dots in painful detail because the process is a complex
one for those who require a cool drink. But you deserve the effort needed
to get you to the sparkling purity of that satisfying drink of water.


On Sat, Apr 6, 2013 at 5:15 PM, Jones Beene wrote:

> The horse will never drink muddy water, and muddy thinking will not
> suffice in science.****
>
> ** **
>
> The explanation offered violates conservation of momentum and is obviously
> false.****
>
> ** **
>
> The paper cited does not mention gammas, requires cryogenic temperatures
> near absolute zero, and in point of fact - the effect would be complexly
> destroyed by gamma radiation and has no applicability to gamma shielding.*
> ***
>
> ** **
>
> End of story.****
>
> ** **
>
> *From:* Axil Axil ****
>
> For all those who are interested in how gamma radiation is thermalized in
> hundreds of millions of microvolt thermal quanta, here is a quantum
> mechanical paper which contains a lot of words describing how the
> conditions for thermalization occurs out of the blue.****
>
> This finding is consistent with the long sought after physical
> manifestation of the model called the 'Spin-Boson Model' required to
> thermalize gammas.****
>
> My good fellows, when the answer is handed to you on a plate, look into it!
> ****
>
> But unfortunately we all know “You can take a horse to water but you can’t
> make him drink.”****
>
> Coherent Oscillations in an Exciton-Polariton Josephson Junction ****
>
> arxiv.org/pdf/1004.2216****
>
>
> Cheers: Axil****
>

6 posted on 04/06/2013 9:41:55 PM PDT by Kevmo ("A person's a person, no matter how small" ~Horton Hears a Who)
[ Post Reply | Private Reply | To 2 | View Replies]

To: 4Runner

No. One of the more prevailing theories relies upon purely conventional physics — the Widom-Larson theory, which NASA is so enamored with.


7 posted on 04/06/2013 9:42:47 PM PDT by Kevmo ("A person's a person, no matter how small" ~Horton Hears a Who)
[ Post Reply | Private Reply | To 3 | View Replies]

To: Kevmo
Conservation laws are not always conserved on the subatomic scale.

Example?

8 posted on 04/06/2013 9:44:36 PM PDT by coloradan (The US has become a banana republic, except without the bananas - or the republic.)
[ Post Reply | Private Reply | To 6 | View Replies]

To: coloradan
Example? The classic example is Tunneling. From the article: Here ,LRε are the energies of the modes in the absence of the tunneling coupling Jand γis the linewidth in the linear regime. The nonresonant excitation enters the polariton dynamics through the stimulated relaxation rate ()2RRn. The exciton reservoir density consists of the active excitons that fulfill energy and momentum conservation for scattering into the lower polariton branch.... At high excitation intensity, the growth rate is much larger than the tunneling between the two wellsand the Josephson currents can be neglected during the exponential growth stage of the condensate formation. This implies that the initial randomness of the relative phase does not affect the density dynamics that is therefore deterministic up to small fluctuations.... Finally, our two-mode model also allows us to understand the role of the polariton-polariton interactions on the Josephson oscillations. In the absence of interactions, the oscillation frequency is set by the detuning and tunneling coupling....
9 posted on 04/06/2013 9:56:30 PM PDT by Kevmo ("A person's a person, no matter how small" ~Horton Hears a Who)
[ Post Reply | Private Reply | To 8 | View Replies]

To: Kevmo

Surely you’re describing a cold fusion intimate massager,
weaponized for emotional ladies with a 1.2 gigabyte flux capacitor.

I don’t think we should go there. Dayum. (It still gave me a chubby.)


10 posted on 04/06/2013 10:05:08 PM PDT by tumblindice (America's founding fathers: All armed conservatives.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Kevmo

What exactly isn’t conserved in tunneling? There’s no shortage of, or extra, energy, charge, momentum, or anything else, after than there was before, the tunneling happened. For example, particles can’t tunnel into places they don’t have enough energy to occupy. So what am I missing?


11 posted on 04/06/2013 10:22:15 PM PDT by coloradan (The US has become a banana republic, except without the bananas - or the republic.)
[ Post Reply | Private Reply | To 9 | View Replies]

To: Kevmo

and just because you have an oscillator means nothing additional. we will see what and where this may lead but right now I can only say okay so what?


12 posted on 04/06/2013 10:31:04 PM PDT by Nifster
[ Post Reply | Private Reply | To 9 | View Replies]

To: coloradan

One of the ways I envision tunneling is the pole vaulter. At no time is the entire mass above the threshold; at no time is the center of mass above the threshold; and yet, the entire mass itself goes over the threshold. It is a pretty good illustration.

To extend the analogy, focusing on the center of mass and saying that it HAS to go above the threshold due to conservation of mass equations is simply wrongheaded. Focusing on conservation of energy on similarly micro-focused aspects of the overall energy system is also wrongheaded.


13 posted on 04/06/2013 10:31:39 PM PDT by Kevmo ("A person's a person, no matter how small" ~Horton Hears a Who)
[ Post Reply | Private Reply | To 11 | View Replies]

To: Nifster

we will see what and where this may lead but right now I can only say okay so what?
***If it turns out to be correct, it will change the world more than automobiles did.

There was a time when the Wright brothers refused to demonstrate flights to anyone who wouldn’t agree to buy their airplanes. Simple enough request. And yet they were presented with an endless parade of sniffers hoping to ferret out their secret without paying. Were the Wright brothers scoundrels? Hell no. Just like you say, “ we will see what and where this may lead”. But if you could get in on the ground floor with the wright brothers between 1903 (when they first flew) and 1908 (when they sold their first airplanes to the army) you’d have been sitting pretty. But scoffers at the time only iterated what you just said, “so what?”...


14 posted on 04/06/2013 10:36:20 PM PDT by Kevmo ("A person's a person, no matter how small" ~Horton Hears a Who)
[ Post Reply | Private Reply | To 12 | View Replies]

To: Kevmo

don’t hold your breath


15 posted on 04/06/2013 10:39:53 PM PDT by Nifster
[ Post Reply | Private Reply | To 14 | View Replies]

To: Kevmo

You haven’t answered my question, which is what isn’t conserved in tunneling? QM prevents us from talking about how transitions happen, only what the initial and final states are. If something isn’t conserved, I don’t know what it is, but the apparent physical impossibility of tunneling, in and of itself, isn’t a violation of conservation.


16 posted on 04/06/2013 10:41:01 PM PDT by coloradan (The US has become a banana republic, except without the bananas - or the republic.)
[ Post Reply | Private Reply | To 13 | View Replies]

To: Nifster

Obfuscation. Classic fallacy.


17 posted on 04/06/2013 10:41:33 PM PDT by Kevmo ("A person's a person, no matter how small" ~Horton Hears a Who)
[ Post Reply | Private Reply | To 15 | View Replies]

To: Kevmo

I notice that you offer nothing specific that these oscillations will be used for, can be sustained by, or any practical application thereof. Even masers and lasers some of which have spontaneous oscillations set up within the medium are of no real use except as science experiments.

finding interesting things out about our world and ts physics is certainly fun but this particular item is of passing interest only....it will be used to try and gain additional funding for further research nothing else


18 posted on 04/06/2013 10:43:08 PM PDT by Nifster
[ Post Reply | Private Reply | To 14 | View Replies]

To: Kevmo

just keep pushing your delusions maybe one day they will show up riding on unicorns


19 posted on 04/06/2013 10:43:54 PM PDT by Nifster
[ Post Reply | Private Reply | To 17 | View Replies]

To: coloradan

There’s no question to answer if you’re going to say something like, “the apparent physical impossibility of tunneling, in and of itself, isn’t a violation of conservation.”

Read the article. Understand tunneling. Apply that understanding to the current article. Then start asking me questions. But by then it will be too late, freepers will have moved on.

Perhaps you should sign up on Vortex-L to access minds more versed in physics, as well as those versed in the circular reasoning you’ve presented.


20 posted on 04/06/2013 10:44:47 PM PDT by Kevmo ("A person's a person, no matter how small" ~Horton Hears a Who)
[ Post Reply | Private Reply | To 16 | View Replies]

To: Nifster

I notice that you offer nothing specific that these oscillations will be used for, can be sustained by, or any practical application thereof.
***If you can’t see that a valid, scientifically testable theory and experimental result can lead to breakthroughs in LENR such that very cheap and towel-head-independent energy is attainable then God Help You.


21 posted on 04/06/2013 10:48:05 PM PDT by Kevmo ("A person's a person, no matter how small" ~Horton Hears a Who)
[ Post Reply | Private Reply | To 18 | View Replies]

To: Kevmo

From 2009

Nonequilibrium Josephson oscillations in Bose-Einstein condensates without dissipation

work done at Cornell


22 posted on 04/06/2013 10:49:02 PM PDT by Nifster
[ Post Reply | Private Reply | To 17 | View Replies]

To: Nifster

Thanks 4 Bumping The Thread T4BTT

http://www.freerepublic.com/focus/chat/2965392/posts?page=19#19


23 posted on 04/06/2013 10:50:14 PM PDT by Kevmo ("A person's a person, no matter how small" ~Horton Hears a Who)
[ Post Reply | Private Reply | To 19 | View Replies]

To: Kevmo

And of course the work from 2012

Macroscopic quantum self-trapping and Josephson oscillations of exciton-polaritons

M. Abbarchi, A. Amo, V. G. Sala, D. D. Solnyshkov, H. Flayac, L. Ferrier, I. Sagnes, E. Galopin, A. Lemaitre, G. Malpuech, J. Bloch
(Submitted on 21 Dec 2012)
A textbook example of quantum mechanical effects is the coupling of two states through a tunnel barrier. In the case of macroscopic quantum states subject to interactions, the tunnel coupling gives rise to Josephson phenomena including Rabi oscillations, the a.c. and d.c. effects, or macroscopic self-trapping depending on whether tunnelling or interactions dominate. Non-linear Josephson physics, observed in superfluid helium and atomic condensates, has remained inaccessible in photonic systems due to the required effective photon-photon interactions. We report on the observation of non-linear Josephson oscillations of two coupled polariton condensates confined in a photonic molecule etched in a semiconductor microcavity. By varying both the distance between the micropillars forming the molecule and the condensate density in each micropillar, we control the ratio of coupling to interaction energy. At low densities we observe coherent oscillations of particles tunnelling between the two micropillars. At high densities, interactions quench the transfer of particles inducing the macroscopic self-trapping of the condensate in one of the micropillars. The finite lifetime of polaritons results in a dynamical transition from self-trapping to oscillations with pi phase. Our results open the way to the experimental study of highly non-linear regimes in photonic systems, such as chaos or symmetry-breaking bifurcations

Learn some physics will you?


24 posted on 04/06/2013 10:50:58 PM PDT by Nifster
[ Post Reply | Private Reply | To 23 | View Replies]

To: Nifster

Learn some physics will you?
***I got an A in Calculus-based Nuclear Physics in College for the engineering curriculum. What grade did you get?

Thanks 4 Bumping The Thread T4BTT

http://www.freerepublic.com/focus/chat/2965392/posts?page=19#19


25 posted on 04/06/2013 10:53:40 PM PDT by Kevmo ("A person's a person, no matter how small" ~Horton Hears a Who)
[ Post Reply | Private Reply | To 24 | View Replies]

To: Kevmo

Before tunneling happens, and after tunneling happens, the mass, momentum, energy, etc., are all the same. That is necessary and sufficient to say that no conservation laws were violated. Wondering how the tunneling happened is like wondering how the photon knows which slit to go through, in the double slit experiment. It’s meaningless, unless you set up a different experiment to detect that - in which case your double slit diffraction pattern vanishes. It is easy to imagine that tunneling happens as a result of energy borrowed from vacuum fluctuations. But that energy is given back, so everything is still conserved.


26 posted on 04/06/2013 10:55:13 PM PDT by coloradan (The US has become a banana republic, except without the bananas - or the republic.)
[ Post Reply | Private Reply | To 20 | View Replies]

To: Kevmo

what the heck is ‘calculus based nuclear physics’? All the engineering students I know took standard physics that the physicists took....but then maybe you went to some other kind of university. My grades in all four years of physics were A.

These oscillations are part of superconductor research you bozo ( and no that is not a cousin of the Boson). The research has been ongoing for quite some time now.....most of the early trapping was done by laser induced Raman shifting. This is neither new nor specifically exciting and is small scale stuff that is proving the theories of quantum mechanics.....which along with quantum electrodynamics are very interesting courses within most physics departments.


27 posted on 04/06/2013 11:00:11 PM PDT by Nifster
[ Post Reply | Private Reply | To 25 | View Replies]

To: Nifster

what the heck is ‘calculus based nuclear physics’?
***Do you have some sort of comprehension problem? It’s the class an engineer takes after a year & a half of calculus based physics. Obviously, if you took 4 years of physics then you took that class. What exactly is your freeping problem?

All the engineering students I know took standard physics that the physicists took....but then maybe you went to some other kind of university.
***Yes, engineers typically take about a year & half of calculus based physics, and then go on to engineering courses, not necessarily “some other kind of university”. Learn some communication skills, won’t you?

My grades in all four years of physics were A.
***Is that your requirement for a freeper to engage in interesting scientific discussion on physics? If so, that makes you an elitist.

These oscillations are part of superconductor research you bozo
***They are also applicable to current LENR theories, you bozo.

( and no that is not a cousin of the Boson).

The research has been ongoing for quite some time now.....most of the early trapping was done by laser induced Raman shifting. This is neither new nor specifically exciting and is small scale stuff that is proving the theories of quantum mechanics.....which along with quantum electrodynamics are very interesting courses within most physics departments.
***You’re behind the curve. I suggest you start reading Vortex-L postings and start interacting with the scientists there. That is, unless your requirement is that everyone have a 4 year physics degree.


28 posted on 04/06/2013 11:20:10 PM PDT by Kevmo ("A person's a person, no matter how small" ~Horton Hears a Who)
[ Post Reply | Private Reply | To 27 | View Replies]

To: Nifster

These oscillations are part of superconductor research you bozo
***Thanks 4 Bumping The Thread T4BTT

http://www.freerepublic.com/focus/chat/2965392/posts?page=19#19


29 posted on 04/06/2013 11:20:57 PM PDT by Kevmo ("A person's a person, no matter how small" ~Horton Hears a Who)
[ Post Reply | Private Reply | To 27 | View Replies]

To: Nifster
These oscillations are part of superconductor research you bozo

Aren't the cold fusion kooks allowed to coopt the legitimacy of superconductor research as their own?

30 posted on 04/06/2013 11:23:36 PM PDT by Moonman62 (The US has become a government with a country, rather than a country with a government.)
[ Post Reply | Private Reply | To 27 | View Replies]

To: Kevmo
***You’re behind the curve.

How so?

I suggest you start reading Vortex-L postings and start interacting with the scientists there.

I see, you can't defend it yourself, so you refer people off to the mailing list. You should keep this nonsense off of FR and stay on the mailing list where you belong.

31 posted on 04/06/2013 11:30:30 PM PDT by Moonman62 (The US has become a government with a country, rather than a country with a government.)
[ Post Reply | Private Reply | To 28 | View Replies]

To: Moonman62

His requirement seems to be to have a 4 year physics college degree. Do you have one? Is that the current elitist Luddite anti-LENR skeptopath requirement in order to discuss physics on FR?

Thanks 4 Bumping The Thread T4BTT

http://www.freerepublic.com/focus/chat/2965392/posts?page=19#19


32 posted on 04/06/2013 11:34:47 PM PDT by Kevmo ("A person's a person, no matter how small" ~Horton Hears a Who)
[ Post Reply | Private Reply | To 31 | View Replies]

To: coloradan

http://www.mail-archive.com/vortex- href=”mailto:l@eskimo.com”>l@eskimo.com/msg78670.html


33 posted on 04/06/2013 11:39:17 PM PDT by Kevmo ("A person's a person, no matter how small" ~Horton Hears a Who)
[ Post Reply | Private Reply | To 8 | View Replies]

To: Kevmo
***If you can’t see that a valid, scientifically testable theory and experimental result can lead to breakthroughs in LENR such that very cheap and towel-head-independent energy is attainable then God Help You.

Look at the way you discuss physics. That belongs on Vortex, a mailing list specifically for kooks, not FR.

34 posted on 04/06/2013 11:40:11 PM PDT by Moonman62 (The US has become a government with a country, rather than a country with a government.)
[ Post Reply | Private Reply | To 32 | View Replies]

To: Moonman62

Thanks 4 Bumping The Thread T4BTT

http://www.freerepublic.com/focus/chat/2965392/posts?page=19#19


35 posted on 04/06/2013 11:43:01 PM PDT by Kevmo ("A person's a person, no matter how small" ~Horton Hears a Who)
[ Post Reply | Private Reply | To 34 | View Replies]

To: All; y'all; et al; Lurker

Lurkers will note that Dr. Brian Josephson received the Nobel Prize in which the Josephson Junction is named. Here’s what he has to say about LENR:

www.youtube.com/watch?v=G8eIhth8Iw8


36 posted on 04/07/2013 12:02:01 AM PDT by Kevmo ("A person's a person, no matter how small" ~Horton Hears a Who)
[ Post Reply | Private Reply | To 1 | View Replies]

To: coloradan

“what isn’t conserved in tunneling?” Hmmmm...positronic pay stations and orbital off ramps.


37 posted on 04/07/2013 12:08:35 AM PDT by count-your-change (you don't have to be brilliant, not being stupid is enough)
[ Post Reply | Private Reply | To 16 | View Replies]

To: Kevmo
Lurkers will note that Dr. Brian Josephson received the Nobel Prize in which the Josephson Junction is named. Here’s what he has to say about LENR:

He was brilliant 50 years ago. Today he's more of an elderly kook. Once again, you're trying to co-opt someone else's legitimacy for your three ring circus.

38 posted on 04/07/2013 7:10:33 AM PDT by Moonman62 (The US has become a government with a country, rather than a country with a government.)
[ Post Reply | Private Reply | To 36 | View Replies]

To: Moonman62

well when you put it that way....of course they can because nothing else seems to be working


39 posted on 04/07/2013 10:26:42 AM PDT by Nifster
[ Post Reply | Private Reply | To 30 | View Replies]

To: Kevmo

I find it interesting that you are the only one who has a comprehension problem. The oh so important physics class you took, it is a beginning class. You took an introductory physics class as either a freshman or sophomore. Whoop dee foo. You fail to mention what type of ‘engineering’ you do or are qualified to do.

When you have passed something that looks like an upper division quantum mechanics class then I will consider your input.

By the way....do you even know what a Josephson junction is? Can you tell me the nonlinear photonic response seen in both the ac and dc oscillations produced in the studies you cited? Yeah that’s what I thought.


40 posted on 04/07/2013 10:31:35 AM PDT by Nifster
[ Post Reply | Private Reply | To 28 | View Replies]

To: Kevmo

I didn’t think there were any Bosnians with last names Josephson. Wow!


41 posted on 04/07/2013 11:35:12 AM PDT by SgtHooper (The last thing I want to do is hurt you. But it's still on the list.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Moonman62

Thanks 4 Bumping The Thread T4BTT

http://www.freerepublic.com/focus/chat/2965392/posts?page=19#19


42 posted on 04/07/2013 7:53:32 PM PDT by Kevmo ("A person's a person, no matter how small" ~Horton Hears a Who)
[ Post Reply | Private Reply | To 38 | View Replies]

To: Nifster

When you have passed something that looks like an upper division quantum mechanics class then I will consider your input.
***Then you admit to being an elitist. You can clear FR science threads of the same level I’m at and you’ll find 95% of your cohorts don’t qualify. After you clear Free Republic of everyone who doesn’t have the same level of education that you have so that you can have the science threads to yourself, whatcha gonna do when others consider your education level inadequate?

Thanks 4 Bumping The Thread T4BTT

http://www.freerepublic.com/focus/chat/2965392/posts?page=19#19


43 posted on 04/07/2013 7:57:29 PM PDT by Kevmo ("A person's a person, no matter how small" ~Horton Hears a Who)
[ Post Reply | Private Reply | To 40 | View Replies]

To: Nifster

I know about this junction. In a way it is a p junction.

44 posted on 04/07/2013 8:04:13 PM PDT by ThomasThomas (Normal isn't normal anymore.)
[ Post Reply | Private Reply | To 40 | View Replies]

To: Kevmo

continue with the elitist nonsense....physics doesn’t care


45 posted on 04/07/2013 9:42:31 PM PDT by Nifster
[ Post Reply | Private Reply | To 43 | View Replies]

To: Nifster

You’re none too bright, eh? You’re the elitist ladder puller here.

Thanks 4 Bumping The Thread T4BTT

http://www.freerepublic.com/focus/chat/2965392/posts?page=19#19


46 posted on 04/07/2013 9:50:37 PM PDT by Kevmo ("A person's a person, no matter how small" ~Horton Hears a Who)
[ Post Reply | Private Reply | To 45 | View Replies]

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson