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2 votes
1 answer
47 views

Can we perform teleported-error-correction with noisy Bell pairs?

2 votes
2 answers
84 views

Do we consider the entangled-based protocol E91 to be a device-independent protocol?

1 vote
1 answer
20 views

How to calculate the number of m-partitions of an N-partite quantum state?

2 votes
1 answer
38 views

What is the F12 rule for the Game of Life

1 vote
2 answers
89 views

Can Bell states be reexpressed with respect to arbitrary local bases?

1 vote
0 answers
15 views

How do two-way protocols allow to extract entanglement from states like Werner's?

3 votes
3 answers
243 views

How to mathematically describe the action of CNOT on the control qubit alone?

10 votes
0 answers
126 views

Are there separable $\rho$ that cannot be decomposed with less than $\operatorname{rank}(\rho)^2$ pure product states?

0 votes
1 answer
44 views

doesn't a reset on an entangled qubit collapse a superposition?

1 vote
0 answers
52 views

Prove that convex combinations of product states admit a hidden variable model

6 votes
1 answer
385 views

What separable $\rho$ only admit separable pure decompositions with more than $\mathrm{rank}(\rho)$ terms?

2 votes
0 answers
70 views

Uniqueness, absolutely maximally entangled states, and the 3 qutrit code

5 votes
1 answer
3k views

What is the difference between "maximally entangled" and "entangled" states?

1 vote
1 answer
19 views

In e91 protocol, if one of the bases combination was not chosen, what should be done to avoid division by zero?

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