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rnva
  • Member for 3 years, 5 months
  • Last seen more than 1 year ago
  • USA
23 votes
Accepted

How can friction do no work in case of pure rolling?

14 votes
Accepted

Can an atomic nucleus contain both particles and antiparticles?

10 votes
Accepted

How can the entropy of a joint system be less than the sum of entropies of its components?

5 votes
Accepted

Finding operator sum decomposition of $T(X)=AX+XA$

5 votes
Accepted

Quantum teleportation with moving Alice and Bob

4 votes
Accepted

Time translation invariance of Hamiltonian

3 votes
Accepted

Detecting external 'forces' in an inertial frame

2 votes
Accepted

Quantum Computation - Finding joint state given partial properties of two pairs of qubits

2 votes

Quantum logic gates (2-inputs 1-output)

2 votes

Schmidt decomposition where is the number of dimension $n_A < n_B$ encoded in the proof?

2 votes

If $\text{Tr}_B \rho^{AB}$ is almost pure, then $\rho^{AB}$ is almost a product state?

2 votes
Accepted

Prove that $\langle n|\rho|m\rangle \langle m|\rho|n\rangle \leq \langle n|\rho|n\rangle\langle m|\rho|m\rangle $ for any density matrix $\rho$

1 vote
Accepted

Decomposing outer products of tensor products into tensor products of outer products

1 vote

Measuring multi-qubit state with respect to an arbitrary basis

1 vote

Can a non-unitary free operation on a resource state be reversed?

1 vote

Thermodynamics - best fan speed to heat a room (for the same heating power)

1 vote

Encoding infinite information in a qubit vs. classical system

1 vote
Accepted

Is this a projection of a tensor state?

1 vote
Accepted

Do Events Conditional to Simultaneity Occur in Every Reference Frame?

1 vote

Why should we diagonalize the density matrix? Why is the diagonal representation more special?

1 vote

Perfectly distinguishable states are mutually orthogonal

1 vote
Accepted

An intuitive explanation of the basis-independency of EPR pair

0 votes

Attaining extrema when a stationarity condition has no solution

0 votes

How can non-polarised light exist?

0 votes

Completely positive quantum channel

0 votes

How can we show that an arbitrary state $|\Psi\rangle\in \mathbb{C}^{2}$ is maximally entangled?