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| visits | member for | 1 year, 3 months |
| seen | 15 hours ago | |
| stats | profile views | 384 |
I am a physics undergrad with interests in theoretical physics and mathematics.
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15h |
revised |
Calculating the the kernel using path integrals for quadratic lagrangians added 483 characters in body; edited title |
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16h |
asked | Calculating the the kernel using path integrals for quadratic lagrangians |
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2d |
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Derivation of Dirac equation using the Lagrangian density for Dirac field Use the Euler-Lagarange equation for fields. |
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May 1 |
answered | Simple uncertaintly calculation of the center coordinates of a Landau Level |
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Apr 28 |
comment |
QFT basics for Klein-Gordon fields c-number stands for classical number i.e. it is not an operator like $\hat{p}, \hat{x}$, but just the usual quantity in classical mechanics. |
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Apr 26 |
answered | Reference request for the Aharonov-Bohm effect |
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Apr 24 |
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Flux Quanta in the Arahanov-Bohm effect Thanks for your answer, though. +1. |
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Apr 24 |
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Flux Quanta in the Arahanov-Bohm effect Its ok. I got all my doubts resolved. Ryders QFT has an excellent section on QFT. I was trying to figure it out with no knowledge of the AB effect at all. |
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Apr 24 |
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Flux Quanta in the Arahanov-Bohm effect In your last sentence, the gauge that you chose is for the vector potential right? Or is it a phase change in the wavefunction? |
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Apr 22 |
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Simple uncertaintly calculation of the center coordinates of a Landau Level @AJK ,wsc: I have a feeling that this has something to do with the semi-classical quantization of phase space. When we divide phase space into cells, why is there an extra factor of $2 \pi$? I remember coming across something of this sort some months back. I will try to study some phase space quantization to be able to explain this. But do you have anything to say about this? |
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Apr 22 |
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Aharonov-Bohm Effect and Integer Quantum Hall Effect Or is it utter crap? |
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Apr 22 |
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Aharonov-Bohm Effect and Integer Quantum Hall Effect Is this explanation correct? |
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Apr 22 |
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Aharonov-Bohm Effect and Integer Quantum Hall Effect and the electron would get transported to the other edge. The energy spent in transporting the electron would cause the electron to fall to the lower landau level. Thus, the system is sort of reset. |
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Apr 22 |
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Aharonov-Bohm Effect and Integer Quantum Hall Effect Thanks! After thinking about the question at hand and going through Laughlins original paper, I have developed a slightly different understanding of the question. The IQHE system has two quantum numbers, one can be taken to be that of the landau level, and the other is the y coordinate of the guiding center which is responsible for the degeneracy. The change in flux would act on the extended states through the center of the cyclotron motion(the guiding center). However, as the flux change approaches to that of one quanta, the y coordinate edge states would no longer be able to increase |
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Apr 22 |
revised |
Flux Quanta in the Arahanov-Bohm effect edited title |
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Apr 22 |
comment |
Aharonov-Bohm Effect and Integer Quantum Hall Effect What happens when the flux is in between two integral multiples? Won't this cause the physics to change? But no change is observed until the next quanta is reached. |
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Apr 22 |
asked | Flux Quanta in the Arahanov-Bohm effect |
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Apr 22 |
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Aharonov-Bohm Effect and Integer Quantum Hall Effect How do you prove that if the increment is an integral multiple of $\frac{\hbar c}{e}$ the physics should remain the same? Is this applicable for this particular case only? I have searched google for the Arahanov-Bohm effect, but I couldn't prove this claim. |
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Apr 22 |
asked | Simple uncertaintly calculation of the center coordinates of a Landau Level |
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Apr 20 |
asked | Calculation of the quantized Hall coefficient in the Integral Quantum Hall Effect |
