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user2820579
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7 votes
1 answer
168 views

Why is the Efimov effect only seen in 3d systems?

2 votes
0 answers
467 views

Exact solution of the Hubbard model in one-dimension

2 votes
2 answers
3k views

Bulk-boundary correspondence in topological insulators

2 votes
1 answer
637 views

Efficient numerical evaluation of Wigner function

2 votes
2 answers
3k views

Self-teaching Green's function approach to quantum many-body systems

2 votes
1 answer
61 views

In practice, how does one work with the phase states?

2 votes
0 answers
227 views

Wick's rotation for the harmonic oscillator. Explicit computation

2 votes
1 answer
98 views

On the computation of functionals in QFT

2 votes
1 answer
107 views

Expected value in usual quantum mechanics vs quantum information

1 vote
0 answers
166 views

Non-markovian random walk. Elephant random walk

1 vote
0 answers
25 views

Is it possible to see revivals using lowest order time evolution in Jaynes-Cummings

1 vote
0 answers
21 views

How to get rid of the oscillatory behaviour in the fermionic functional?

1 vote
1 answer
320 views

Highest weight theorem of $SU(2)$

1 vote
0 answers
49 views

Parameters in Lie group theory

1 vote
1 answer
198 views

Operator ordering (for the Groenewold-van Hove theorem)

1 vote
1 answer
327 views

Time-reversal and its effect in the eigenfunctions of the Floquet operator

1 vote
1 answer
173 views

Current and conductance from the Landauer formula

1 vote
0 answers
88 views

Total hamiltonian is time independent in interaction picture

1 vote
1 answer
96 views

Can one have $\mathcal{PT}$-symmetry in a QFT theory proportional to an imaginary field?

1 vote
0 answers
308 views

Path integral for the harmonic oscillator

1 vote
1 answer
155 views

Fourier transform of cross-spectral density space matrix elements

1 vote
1 answer
309 views

Wigner map of the product of two operators

1 vote
2 answers
241 views

Computation in QFT

1 vote
0 answers
101 views

Second book on QFT before understanding Conformal Field Theory [duplicate]

1 vote
1 answer
2k views

Commutation relations, complex scalar field

1 vote
1 answer
172 views

How to obtain the Noether charge for two interacting fields. Correct mode expansion for field operators

1 vote
0 answers
1k views

Commutation relation Lorentz Algebra

0 votes
0 answers
55 views

Missing sign in Lagrangian density for the electromagnetic field

0 votes
0 answers
56 views

Commutation relation, field and conserved charges

0 votes
1 answer
319 views

Why Noether current gives the Schrödinger equation