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| bio | website | |
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| age | ||
| visits | member for | 8 months |
| seen | May 6 at 11:54 | |
| stats | profile views | 44 |
Josephine stepped on my aircraft.
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Apr 29 |
awarded | Nice Question |
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Apr 20 |
comment |
Some questions about Ward-Takahashi Identity @soliton Can you give some explanation about your equation? Thank you! |
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Apr 19 |
accepted | What does the term liquid mean in condensed matter physics? |
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Apr 19 |
comment |
Some questions about Ward-Takahashi Identity Thank you for your answer. Besides, when defining mass shell, $p^{\mu}p_{\mu}=m^2$, is m the bass mass or physical mass? |
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Apr 19 |
asked | Some questions about Ward-Takahashi Identity |
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Feb 3 |
comment |
Chiral edge state as topological properity of bulk state The existance of edge is robust under disorder. While 'Chiral' means back scattering is forbidden. Can we understand the robustness as the result of the existance of 'chiral' edge mode? This way, maybe we can say all edge states of topological nontrivial state is chiral. |
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Feb 3 |
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Chiral edge state as topological properity of bulk state Thanks for your answer. Your second paragraph seems to explain the reason of 'gapless'. Do you have examples that edge state is not chiral? |
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Feb 2 |
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Why quantum hall effect has chiral edge state? Thanks a lot. I still have one puzzle in my mind. I want to understand how band inversion can change the topological invariant. For example, how does it change Z_2 invariant? thanks. |
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Feb 2 |
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Why quantum hall effect has chiral edge state? There is also a physical picture of band inversion to illustrate topological nontrivial state. For example, the first topological insulator proposed by Shoucheng Zhang in quantum wells. Does the 'inverted' in your reply refers to the inversion of valence and conduction bands? |
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Feb 2 |
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Why quantum hall effect has chiral edge state? Thanks. Yes, I know closing gap leads to quantum phase transition, which will change the topological invariant; and this is the reason surface states are always gapless. |
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Feb 2 |
asked | Chiral edge state as topological properity of bulk state |
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Feb 2 |
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Why quantum hall effect has chiral edge state? I know that quantum spin hall effect and topological superconducting state also has chiral state. Is chiral state a result of bulk topological properity? |
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Feb 2 |
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Why quantum hall effect has chiral edge state? Thanks very much for your answer. This is quite a good point of view. |
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Jan 30 |
asked | Why quantum hall effect has chiral edge state? |
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Jan 29 |
awarded | Commentator |
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Jan 29 |
comment |
Where to learn Temperature Dependent Conductivity induced by Electron-Phonon Interaction? @NanoPhys Thanks for your help. |
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Jan 26 |
asked | Where to learn Temperature Dependent Conductivity induced by Electron-Phonon Interaction? |
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Jan 14 |
revised |
Will Anderson's Poor Man's Scaling loose its effect when band width is small? edited tags |
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Jan 12 |
asked | Will Anderson's Poor Man's Scaling loose its effect when band width is small? |
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Jan 11 |
asked | What is Resonance Width? Why we use it to distinguish different Regimes of the Anderson Model |
