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yuggib
  • Member for 8 years, 3 months
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26 votes
Accepted

Why isn't the path integral rigorous?

17 votes

Electromagnetic field and continuous and differentiable vector fields

13 votes
Accepted

Infinite dimensional vector spaces vs. the dual space

13 votes
Accepted

How to determine the observables rigorously?

13 votes
Accepted

Non-separable solutions of the Schroedinger equation

12 votes
Accepted

Is the usage of the Fock space a postulate in QFT?

12 votes

What is going on in the photon-photon scattering Feynman diagram?

12 votes
Accepted

How do you go from quantum electrodynamics to Maxwell's equations?

11 votes

Why is a Hermitian operator a "quantum random variable"?

11 votes

Logarithm of Operators in Quantum Mechanics

10 votes

Why is an operator the quantum mechanical analogue of an observable?

10 votes
Accepted

Uniqueness of bra-ket correspondence

10 votes
Accepted

Does every ray in the Hilbert space of a system correspond to one and only one physical state and vice versa?

10 votes

Can a physical wavefunction be non-smooth or even discontinuous?

10 votes
Accepted

Classical field limit of the electron quantum field

10 votes
Accepted

$p^4$ in radial coordinates not Hermitian

10 votes
Accepted

Can a perfectly mathematically describable universe exist in a multiverse?

9 votes
Accepted

Realistic interacting QFT construction

9 votes
Accepted

Physics journals that focus on expository work

9 votes
Accepted

Is the Klein-Gordon Hamiltonian unbounded below?

9 votes
Accepted

Does Heisenberg equation of motion imply the Schrodinger equation for evolution operator?

9 votes

If an isolated quantum system consists of only one particle, is it possible for it to be in a mixed state?

9 votes
Accepted

States in QM and in the algebraic approach

9 votes

Newton's law requires two initial conditions while the Taylor series requires infinite!

8 votes

Domains of $H$ and $U(t) = \exp(-iH t )$

8 votes

Is a "third quantization" possible?

8 votes
Accepted

Physical reason why the derivative of a wavefunction has to be continuous?

8 votes
Accepted

Is it possible to go from the Master Equation formalism to Heisenberg-Langevin equations

8 votes

The dual role of (anti-)Hermitian operators in quantum mechanics

7 votes

How do you solve classical mechanics problems with quantum mechanics?

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