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age 25
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Physics PhD candidate at University of Illinois, Urbana-Champaign


Aug
28
accepted What is the Laughlin argument?
Aug
28
awarded  Yearling
Jul
3
awarded  Popular Question
Mar
3
awarded  Popular Question
Nov
11
accepted Incoherent assumption of the parton model
Nov
9
asked Incoherent assumption of the parton model
Nov
9
accepted Proof of quantization of magnetic charge of monopoles using homotopy groups
Nov
9
accepted Can I integrate out the fermion field that is not gapped?
Sep
24
awarded  Autobiographer
Sep
18
awarded  Popular Question
Sep
3
awarded  Notable Question
Aug
28
awarded  Yearling
Jul
2
awarded  Curious
Oct
17
awarded  Popular Question
Aug
28
awarded  Yearling
May
23
accepted Lagrangian for Goldstone mode + topological excitation
May
14
comment Why doublons and holons are not bounded in spin-1/2 Hubbard chain?
I see, thanks a lot!
May
13
comment Fermi level for the bulk of topological insulator
Yes, there are always impurities in real samples. In your question, you only need to care about whether they are electron donors or acceptors. Impurities themselves may lead to amazing effects which are more sophisticated than your question.
May
13
comment Fermi level for the bulk of topological insulator
Your question can be asked for any solids not specifically for TI. Chemical potential indicates the energy of doped atoms which are "hidden" as background in band structure calculations. For superconductors, chemical potential also lies in the superconducting gap and this chemical potential is the energy of superconducting electron pairs which are also "hidden as the background."
May
13
comment Why doublons and holons are not bounded in spin-1/2 Hubbard chain?
I see, thanks! Suppose I could show that in the variational ansatz, the doublon and holon were attractive to each other, will it be convincing to predict the Mott transition even though I do not scan the filling?