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Luqman Saleem
  • Member for 5 years, 6 months
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  • Turkey
6 votes
2 answers
465 views

Resource recommendation: Tensor Networks

5 votes
2 answers
2k views

Hubbard model diagonalization in $k$-space

5 votes
1 answer
319 views

What are $U(n)$ or $\mathbb{Z}_2$ quantum spin liquids?

4 votes
1 answer
220 views

Making connection of first quantization to second quantization, (quantum field theory)

4 votes
0 answers
828 views

Hartree-Fock decoupling of Hubbard model

3 votes
1 answer
819 views

Diagonalization of Hubbard model for spinless fermions in 1D $k$-space

3 votes
0 answers
281 views

Charge conjugation operator in second quantization

3 votes
2 answers
1k views

How can I explicitly express the Ising Hamiltonian in matrix form?

3 votes
1 answer
661 views

How presence of metastable state ensure that there is first order phase transition?

3 votes
0 answers
162 views

What is the correct way to perform numerical integration over Brillouin zone?

3 votes
0 answers
43 views

Relation between many-body system's single-particle retarded Green' function and Propagator for single particle wavefunction

3 votes
0 answers
50 views

Different ways to defining Fourier transform of a lattice model

2 votes
1 answer
189 views

Projection operator in second quantization

2 votes
1 answer
104 views

What does intrinsic and extrinsic contribution to Hall effect mean?

2 votes
0 answers
20 views

Resource recommendation for thermal transportation in solids

2 votes
1 answer
76 views

Physical meaning of phenomenological equations for transport coefficients

2 votes
1 answer
66 views

Hamiltonian density of a spin Hamiltonian

2 votes
1 answer
90 views

How does projector Monte Carlo method work?

2 votes
1 answer
149 views

Can we numerically find ground-state of a 1D tight binding Hamiltonain with odd sites at half filling?

2 votes
1 answer
260 views

Resource recommendation for spintronics

2 votes
1 answer
376 views

Physical meaning of topological invariant

2 votes
1 answer
3k views

What is "quantum gas"?

2 votes
1 answer
83 views

Calculating thermal average of an observable in quantum mechanics [closed]

1 vote
0 answers
27 views

Linear response theory of spin Seebeck effect

1 vote
0 answers
59 views

How to prove this relation (algebra: containing non-interacting Green function)?

1 vote
1 answer
56 views

Is first-order perturbation always equal to Hartree-Fock approximation?

1 vote
1 answer
111 views

Kubo identity (electrical conductivity) integration

1 vote
1 answer
60 views

Evaluating electric conductivity using Kubo formula. Scalar potential vs vector potential

1 vote
0 answers
37 views

Why is the perturbation term taken as current density times magnetic vector potential in Hamiltonian?

1 vote
0 answers
112 views

Reference for Bethe Ansatz solution of 1D spinless Hubbard model