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0 votes

1 answer

167 views

Is minimizing trace distance between two density matrices equivalent to minimizing their entropy difference?

CommunityBot

1

modified 7 hours ago

1 vote

1 answer

67 views

Trace distance of entanglement

Bram

1,381

modified yesterday

5 votes

1 answer

102 views

What's the relation between spherical and complex-projective t-designs?

Ayodeji Lindblad

21

modified yesterday

0 votes

2 answers

53 views

How should I go about learning this subject?

Filippos Dakis

23

answered 2 days ago

1 vote

0 answers

25 views

Issues with the qiskit transpiler producing gates outside hardware ISA

Eddie

92

asked 2 days ago

2 votes

1 answer

42 views

How to prove that a give operator $A$ is trivial?

Tristan Nemoz♦

8,924

answered 2 days ago

2 votes

1 answer

427 views

Does the CX gate always leave the first qubit unchanged and swap the amplitudes of the second one?

Timothy Chase

11

modified 2 days ago

2 votes

2 answers

144 views

Is the 2-qubit singlet state invariant under bilateral projections?

Jos Bergervoet

330

answered Jan 9 at 13:29

2 votes

2 answers

425 views

Can we write a sum of unitary gates as an equivalent product of unitary gates?

Matteo Vitturi

193

modified Jan 8 at 16:06

2 votes

2 answers

150 views

Why does the logical Hadamard on the rotated surface code require patch rotation instead of switching stabilizer measurements?

Do a Phase Flip

722

answered Jan 8 at 11:51

2 votes

1 answer

185 views

Confusion on the difference between post-selection, approximate post-selection, and conditioning

user40855

11

answered Jan 7 at 10:07

1 vote

1 answer

198 views

How to do the VQE algorithm when importing molecular integrals manually?

CommunityBot

1

modified Jan 4 at 21:07

1 vote

1 answer

128 views

Are (4.8.8) and (6.6.6) color codes the only two color codes implementable on square lattice?

Craig Gidney

50.5k

answered Jan 3 at 18:25

2 votes

2 answers

295 views

Given that for every valid density matrix $\rho$, $\text{Tr}(M\rho) = 1$; what can we conclude about matrix $M$?

Shawon

301

modified Jan 3 at 7:47

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Is minimizing trace distance between two density matrices equivalent to minimizing their entropy difference?

Trace distance of entanglement

What's the relation between spherical and complex-projective t-designs?

How should I go about learning this subject?

Issues with the qiskit transpiler producing gates outside hardware ISA

How to prove that a give operator $A$ is trivial?

Does the CX gate always leave the first qubit unchanged and swap the amplitudes of the second one?

Is the 2-qubit singlet state invariant under bilateral projections?

Can we write a sum of unitary gates as an equivalent product of unitary gates?

Why does the logical Hadamard on the rotated surface code require patch rotation instead of switching stabilizer measurements?

Confusion on the difference between post-selection, approximate post-selection, and conditioning

How to do the VQE algorithm when importing molecular integrals manually?

Are (4.8.8) and (6.6.6) color codes the only two color codes implementable on square lattice?

Given that for every valid density matrix $\rho$, $\text{Tr}(M\rho) = 1$; what can we conclude about matrix $M$?

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