User Solarflare0

9 votes

3 answers

2k views

Why is imaginary time evolution non-unitary?

asked Sep 2, 2021 at 20:08

6 votes

1 answer

1k views

When to use a Kronecker sum vs a tensor product of Hamiltonians?

asked Oct 6, 2021 at 17:17

5 votes

1 answer

172 views

Is there a well-defined association between abstract linear operators in Fock space and normal ordered polynomials of fermionic operators?

asked Nov 19, 2021 at 20:50

4 votes

0 answers

283 views

Defining particles by their commutation/anti-commutation relations

asked Mar 6, 2021 at 19:38

3 votes

1 answer

430 views

Form of the interaction representation time evolution operator

asked Nov 28, 2021 at 22:11

3 votes

2 answers

341 views

Does quantum mechanics tell us when the next measurement will occur?

asked Aug 14, 2021 at 0:57

2 votes

1 answer

225 views

Does the Many Worlds Interpretation make any distinction between entangling processes and measurement?

asked Aug 22, 2021 at 4:11

2 votes

1 answer

142 views

Set of unitary operators such that $U|0\rangle = |\psi\rangle$

asked Apr 21, 2021 at 0:44

1 vote

2 answers

241 views

Two distinct uses for the density matrix formalism

asked May 15, 2021 at 17:56

1 vote

0 answers

54 views

Relationship between two different notions of changing basis

asked Jun 27, 2021 at 17:56

1 vote

2 answers

112 views

Role of Hermiticity in Quantum Mechanics without exploiting the Spectral Theorem

asked Oct 7, 2021 at 0:28

1 vote

1 answer

685 views

What is the mathematical setting of the Jordan-Wigner transformation?

asked Oct 15, 2021 at 17:38

1 vote

1 answer

906 views

Heisenberg Equation for Raising and Lowering Operators of the Harmonic Oscillator

asked Nov 14, 2021 at 2:03

1 vote

1 answer

154 views

Is there a way to measure the degree of superposition of a quantum state?

asked Jul 9, 2019 at 4:03

0 votes

1 answer

144 views

The Adiabatic Theorem and Symmetries of the Hamiltonian

asked May 9, 2021 at 0:32

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15 Questions

Why is imaginary time evolution non-unitary?

When to use a Kronecker sum vs a tensor product of Hamiltonians?

Is there a well-defined association between abstract linear operators in Fock space and normal ordered polynomials of fermionic operators?

Defining particles by their commutation/anti-commutation relations

Form of the interaction representation time evolution operator

Does quantum mechanics tell us when the next measurement will occur?

Does the Many Worlds Interpretation make any distinction between entangling processes and measurement?

Set of unitary operators such that $U|0\rangle = |\psi\rangle$

Two distinct uses for the density matrix formalism

Relationship between two different notions of changing basis

Role of Hermiticity in Quantum Mechanics without exploiting the Spectral Theorem

What is the mathematical setting of the Jordan-Wigner transformation?

Heisenberg Equation for Raising and Lowering Operators of the Harmonic Oscillator

Is there a way to measure the degree of superposition of a quantum state?

The Adiabatic Theorem and Symmetries of the Hamiltonian