User Dripto Debroy

19 votes

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Tools for creating quantum circuit diagrams

answered Oct 30, 2018 at 23:26

19 votes

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How do you implement the Toffoli gate using only single-qubit and CNOT gates?

answered Aug 5, 2018 at 18:10

9 votes

Currently, what are the best structured courses available online on quantum computing?

answered Jul 9, 2018 at 15:45

6 votes

Density matrix after measurement on density matrix

answered Nov 30, 2018 at 18:25

6 votes

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Do all physical architectures for quantum computers use the same universal gate sets?

answered Jun 12, 2020 at 3:51

6 votes

How to implement a while loop in a quantum computer?

answered Jul 1, 2020 at 17:15

5 votes

Symmetry in Conditional Phase Shift Gates and Realizing CNOT through HCZH

answered Sep 5, 2018 at 4:11

5 votes

What are the pros/cons of Trapped Ion Qubits, Superconducting Qubits and Si Spin Qubits?

answered Jul 29, 2018 at 5:04

5 votes

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HHL algorithm -- controlled-by-eigenvalues rotations

answered Jul 9, 2018 at 15:21

5 votes

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HHL algorithm -- problem with the outcome of postselection

answered Jul 9, 2018 at 15:37

4 votes

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topological error correction concepts

answered Jul 23, 2018 at 3:21

4 votes

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Can we perform quantum mechanical simulations using a quantum computer?

answered Aug 2, 2018 at 2:20

4 votes

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The meaning of the city plot in Qiskit

answered Jul 11, 2019 at 14:49

4 votes

What's the purpose of phases in quantum mechanics?

answered Jul 3, 2020 at 23:12

4 votes

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How the simulator work?

answered Jul 9, 2020 at 19:03

4 votes

What is the pseudo threshold of a QECC using stabilizer formalism

answered Jul 19, 2020 at 2:47

3 votes

Where to publish quantum algorithm related paper

answered Jul 18, 2020 at 14:37

3 votes

Non-layperson explanation of why a qubit is more useful than a bit?

answered Dec 5, 2018 at 17:45

3 votes

What is the notational convention for the single-qubit states $\lvert0\rangle\pm i\lvert1\rangle$?

answered Jan 12, 2019 at 4:26

3 votes

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Is there something like GitHub for quantum programming?

answered Jul 23, 2018 at 4:09

2 votes

In amplitude amplification, how are the amplitudes of qubits changed?

answered Jul 10, 2018 at 4:32

2 votes

Good metaphors for n-level quantum systems

answered Aug 2, 2018 at 2:22

2 votes

Is it possible to purchase quantum computing hardware?

answered Jul 23, 2018 at 17:40

2 votes

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Prove that the depolarizing channel is completely positive

answered Jun 20, 2020 at 4:03

2 votes

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Other than distance, what other metrics can be used to compare quantum error correcting codes?

answered Jun 28, 2020 at 18:26

1 vote

Creative way to clone quantum data?

answered Jun 27, 2020 at 12:29

1 vote

Software used for modelling quantum processors

answered Jun 4, 2020 at 14:20

1 vote

Are all operations simply matrix multiplication?

answered Sep 6, 2019 at 0:31

1 vote

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How do two qubit states differing by a global phase relate to each other?

answered Jun 13, 2020 at 5:16

1 vote

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Where can I find tutorials about correcting gate errors in the quantum circuit?

answered Jun 15, 2020 at 4:46

Stack Exchange Network

38 Answers

Tools for creating quantum circuit diagrams

How do you implement the Toffoli gate using only single-qubit and CNOT gates?

Currently, what are the best structured courses available online on quantum computing?

Density matrix after measurement on density matrix

Do all physical architectures for quantum computers use the same universal gate sets?

How to implement a while loop in a quantum computer?

Symmetry in Conditional Phase Shift Gates and Realizing CNOT through HCZH

What are the pros/cons of Trapped Ion Qubits, Superconducting Qubits and Si Spin Qubits?

HHL algorithm -- controlled-by-eigenvalues rotations

HHL algorithm -- problem with the outcome of postselection

topological error correction concepts

Can we perform quantum mechanical simulations using a quantum computer?

The meaning of the city plot in Qiskit

What's the purpose of phases in quantum mechanics?

How the simulator work?

What is the pseudo threshold of a QECC using stabilizer formalism

Where to publish quantum algorithm related paper

Non-layperson explanation of why a qubit is more useful than a bit?

What is the notational convention for the single-qubit states $\lvert0\rangle\pm i\lvert1\rangle$?

Is there something like GitHub for quantum programming?

In amplitude amplification, how are the amplitudes of qubits changed?

Good metaphors for n-level quantum systems

Is it possible to purchase quantum computing hardware?

Prove that the depolarizing channel is completely positive

Other than distance, what other metrics can be used to compare quantum error correcting codes?

Creative way to clone quantum data?

Software used for modelling quantum processors

Are all operations simply matrix multiplication?

How do two qubit states differing by a global phase relate to each other?

Where can I find tutorials about correcting gate errors in the quantum circuit?