User mavzolej

12 votes

1 answer

7k views

Evaluating expectation values of operators in Qiskit

asked May 19, 2020 at 12:04

10 votes

0 answers

163 views

Anti-symmetrization on the lattice

asked Jul 10, 2019 at 8:07

9 votes

2 answers

488 views

Preparing any superposition of fixed Hamming weight states

asked Aug 11, 2020 at 14:23

8 votes

1 answer

352 views

$n$ qubit vs. a $d=2^n$ qudit states and measurements

asked Jun 17, 2019 at 14:32

6 votes

0 answers

154 views

Encoding bosonic degrees of freedom

asked Apr 23, 2019 at 16:27

6 votes

1 answer

162 views

Is there any legitimate information about Microsoft quantum hardware?

asked May 27, 2020 at 13:06

6 votes

2 answers

237 views

Exponentiating Pauli matrices using trapped ion native gates (single-qubit rotations + XX, YY, ZZ)

asked Mar 12, 2021 at 20:30

6 votes

1 answer

230 views

What are the relations between the permutation group and the Clifford group?

asked Oct 18, 2022 at 19:25

6 votes

1 answer

115 views

Why can't we implement fault-tolerant single qubit rotations continuously?

asked Oct 25, 2022 at 20:01

5 votes

1 answer

103 views

Quantum advantage without phase?

asked Apr 23, 2022 at 8:20

5 votes

0 answers

124 views

Trotter error for bosons in various encodings

asked Feb 19, 2021 at 7:38

5 votes

1 answer

458 views

Defining a custom parametric gate in Qiskit in terms of standard gates?

asked Aug 12, 2020 at 17:12

5 votes

1 answer

137 views

Implementing $a^\dagger|\psi\rangle$

asked Feb 1, 2022 at 20:17

4 votes

0 answers

120 views

Grover / amplitude amplification with exponentially high success probability

asked Sep 25 at 21:47

4 votes

0 answers

46 views

Trading gates for qubits in the Hadamard test for $\langle 0| V^\dagger G U | 0\rangle$... using the SWAP test?

asked Feb 1, 2022 at 20:36

4 votes

2 answers

120 views

Can error correction for a classical algorithm with bit flips be easier than for a general quantum circuit?

asked Oct 10, 2021 at 14:56

3 votes

1 answer

1k views

How to do state tomography when using sampling in Qiskit?

asked Aug 1, 2020 at 3:40

3 votes

2 answers

114 views

Can D-Wave machines be applied to simulate Hamiltonians arising in quantum physics?

asked Jun 15, 2022 at 15:28

3 votes

1 answer

122 views

Block encoding of a diagonal matrix with equidistant eigenvalues

asked Mar 8 at 0:54

3 votes

0 answers

97 views

"Wn state" in Bravyi-Kitaev encoding

asked Mar 30, 2020 at 5:31

3 votes

1 answer

777 views

Matrix mod 2 multiplication

asked Apr 7, 2020 at 21:04

3 votes

0 answers

62 views

Amplitude amplification on each register in a product state

asked Aug 24 at 23:24

2 votes

0 answers

161 views

Qiskit CircuitStateFn.eval() on more than 16 qubits

asked Feb 12, 2021 at 8:43

2 votes

2 answers

72 views

Check if $|\psi\rangle$ is equal to a fixed basis state using the standard set of gates

asked Nov 22, 2020 at 1:40

2 votes

1 answer

102 views

Preparing a linear combination of two $1$-occupied states

asked Apr 14, 2020 at 18:00

2 votes

1 answer

1k views

Expressing a term of an $n$-qubit Hamiltonian in terms of Pauli operators

asked May 12, 2020 at 21:51

2 votes

3 answers

1k views

Creating a custom VariationalForm in Qiskit

asked May 18, 2020 at 19:17

2 votes

2 answers

565 views

VQE Cirq example

asked Mar 13, 2020 at 2:31

2 votes

1 answer

760 views

Uniform superposition of states with one qubit set to $|1\rangle$ and others to $|0\rangle$

asked Mar 27, 2020 at 22:09

2 votes

1 answer

507 views

Jordan-Wigner $\leftrightarrow$ Bravyi-Kitaev transformation in Qiskit

asked Jun 7, 2020 at 22:36

Stack Exchange Network

44 Questions

Evaluating expectation values of operators in Qiskit

Anti-symmetrization on the lattice

Preparing any superposition of fixed Hamming weight states

$n$ qubit vs. a $d=2^n$ qudit states and measurements

Encoding bosonic degrees of freedom

Is there any legitimate information about Microsoft quantum hardware?

Exponentiating Pauli matrices using trapped ion native gates (single-qubit rotations + XX, YY, ZZ)

What are the relations between the permutation group and the Clifford group?

Why can't we implement fault-tolerant single qubit rotations continuously?

Quantum advantage without phase?

Trotter error for bosons in various encodings

Defining a custom parametric gate in Qiskit in terms of standard gates?

Implementing $a^\dagger|\psi\rangle$

Grover / amplitude amplification with exponentially high success probability

Trading gates for qubits in the Hadamard test for $\langle 0| V^\dagger G U | 0\rangle$... using the SWAP test?

Can error correction for a classical algorithm with bit flips be easier than for a general quantum circuit?

How to do state tomography when using sampling in Qiskit?

Can D-Wave machines be applied to simulate Hamiltonians arising in quantum physics?

Block encoding of a diagonal matrix with equidistant eigenvalues

"Wn state" in Bravyi-Kitaev encoding

Matrix mod 2 multiplication

Amplitude amplification on each register in a product state

Qiskit CircuitStateFn.eval() on more than 16 qubits

Check if $|\psi\rangle$ is equal to a fixed basis state using the standard set of gates

Preparing a linear combination of two $1$-occupied states

Expressing a term of an $n$-qubit Hamiltonian in terms of Pauli operators

Creating a custom VariationalForm in Qiskit

VQE Cirq example

Uniform superposition of states with one qubit set to $|1\rangle$ and others to $|0\rangle$

Jordan-Wigner $\leftrightarrow$ Bravyi-Kitaev transformation in Qiskit