User Josu Etxezarreta Martinez

12 votes

Accepted

How to construct matrix of regular and "flipped" 2-qubit CNOT?

answered Jan 11, 2019 at 9:25

10 votes

Where do we put error correction code in quantum circuit?

answered Nov 6, 2018 at 15:03

9 votes

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Transformation of a Bell state

answered Oct 31, 2018 at 9:49

9 votes

Why can't there be an error correcting code with fewer than 5 qubits?

answered Nov 23, 2018 at 14:45

8 votes

Are there any organised resources available from where I can begin my quantum computing studies?

answered May 17, 2018 at 11:43

7 votes

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Reverse Quantum Computing: How to unmeasure a qunit

answered Jun 29, 2018 at 15:40

7 votes

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Proof of no-cloning

answered Dec 13, 2018 at 16:36

7 votes

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What circuit or operation corresponds to the tensor product?

answered Nov 15, 2018 at 18:46

6 votes

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In which paper was the CHSH game first presented?

answered Oct 31, 2018 at 15:09

4 votes

Is there a way to reverse the amplitudes of a quantum system?

answered Feb 21, 2019 at 14:19

4 votes

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Applying CNOT with local operations and two EPR pairs

answered Oct 5, 2018 at 10:13

3 votes

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Kronecker product and multiplication operation on qubit states

answered Jun 20, 2019 at 8:39

3 votes

What is a list of research journals publishing quantum computing articles?

answered Sep 12, 2018 at 7:47

3 votes

How to check if 2 quantum bits are orthogonal?

answered Jun 6, 2018 at 19:32

3 votes

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Are all $[[n, k, d]]$ quantum codes equivalent to additive self-orthogonal $GF(4)^n$ classical codes?

answered Jun 21, 2018 at 13:51

2 votes

Difference between 3 qubits, 2 qutrits & 1 six level qunit

answered Jun 21, 2018 at 8:38

2 votes

How is entanglement achieved between two particles in quantum computing?

answered Jul 8, 2018 at 15:18

2 votes

Better Way Of Separating Two CQ-States

answered Feb 7, 2019 at 10:00

2 votes

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Why does $|P_U − P_V |$ equal $\langle \psi |U^{\dagger} M U|\psi\rangle −\langle \psi |V^{\dagger} M V |\psi\rangle$?

answered Feb 12, 2019 at 23:12

2 votes

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Additivity of degradable and anti-degradable quantum capacities

answered Jun 27, 2022 at 8:32

2 votes

Does proving $Q^{(1)}(\mathcal{N}\otimes\mathcal{N})=Q^{(1)}(\mathcal{N})+Q^{(1)}(\mathcal{N})$ imply additivity for arbitrary $n$?

answered Nov 7, 2022 at 12:01

2 votes

MWPM algorithm for depolarizing-like noise channel (i.e. non-zero probability of $Y$ errors)

answered Mar 27 at 10:46

2 votes

The behaviour of ebits in Entanglement-assisted Quantum Error Correction Codes?

answered Feb 3, 2020 at 9:10

1 vote

Accepted

Phase flip error correction on state $|0\rangle$

answered Dec 18, 2020 at 11:49

1 vote

Is there something like error-suppression codes?

answered Jun 28 at 11:37

1 vote

The merit of quantum error correction codes

answered Jul 24, 2019 at 8:50

1 vote

Does the no-cloning theorem impose limits on the capabilities of quantum networks?

answered Jun 29, 2018 at 15:19

1 vote

Zero-distance self-dual GF(4) quantum codes and constructing k > 0 codes from them

answered Jun 11, 2018 at 8:27

1 vote

Chronological list of improvements in number of logical qubits

answered Feb 6, 2019 at 19:58

Stack Exchange Network

29 Answers

How to construct matrix of regular and "flipped" 2-qubit CNOT?

Where do we put error correction code in quantum circuit?

Transformation of a Bell state

Why can't there be an error correcting code with fewer than 5 qubits?

Are there any organised resources available from where I can begin my quantum computing studies?

Reverse Quantum Computing: How to unmeasure a qunit

Proof of no-cloning

What circuit or operation corresponds to the tensor product?

In which paper was the CHSH game first presented?

Is there a way to reverse the amplitudes of a quantum system?

Applying CNOT with local operations and two EPR pairs

Kronecker product and multiplication operation on qubit states

What is a list of research journals publishing quantum computing articles?

How to check if 2 quantum bits are orthogonal?

Are all $[[n, k, d]]$ quantum codes equivalent to additive self-orthogonal $GF(4)^n$ classical codes?

Difference between 3 qubits, 2 qutrits & 1 six level qunit

How is entanglement achieved between two particles in quantum computing?

Better Way Of Separating Two CQ-States

Why does $|P_U − P_V |$ equal $\langle \psi |U^{\dagger} M U|\psi\rangle −\langle \psi |V^{\dagger} M V |\psi\rangle$?

Additivity of degradable and anti-degradable quantum capacities

Does proving $Q^{(1)}(\mathcal{N}\otimes\mathcal{N})=Q^{(1)}(\mathcal{N})+Q^{(1)}(\mathcal{N})$ imply additivity for arbitrary $n$?

MWPM algorithm for depolarizing-like noise channel (i.e. non-zero probability of $Y$ errors)

The behaviour of ebits in Entanglement-assisted Quantum Error Correction Codes?

Phase flip error correction on state $|0\rangle$

Is there something like error-suppression codes?

The merit of quantum error correction codes

Does the no-cloning theorem impose limits on the capabilities of quantum networks?

Zero-distance self-dual GF(4) quantum codes and constructing k > 0 codes from them

Chronological list of improvements in number of logical qubits