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JRT
  • Member for 3 years, 4 months
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3 votes
1 answer
298 views

Hadamard transform on state

7 votes
1 answer
206 views

Positive semidefinite relationship after partial trace

2 votes
2 answers
199 views

If Alice and Bob share only classical communication resources, is shared entanglement always equivalent to shared randomness?

3 votes
2 answers
176 views

Can we express $\mathrm{tr}_A((A\otimes B)\rho_{AB})$ in terms of $A$, $B$, $\rho_A$ and $\rho_B$?

4 votes
1 answer
166 views

Does closeness in trace distance imply close measurement outcomes?

2 votes
1 answer
151 views

What is the most general quantum operation that preserves the marginal?

7 votes
0 answers
140 views

How large can we make the fidelity between mixed states by allowing unitaries?

2 votes
1 answer
111 views

Is data processing for relative entropy true when states are not normalized?

2 votes
1 answer
103 views

Does the number of stabilizers bound the number of correctable errors?

2 votes
2 answers
74 views

How to evaluate the mutual information of a classical-quantum state?

4 votes
0 answers
54 views

Permutation invariant states have permutation invariant purifications - proof?