User mavzolej

12 votes

1 answer

6k views

Evaluating expectation values of operators in Qiskit

asked May 19, 2020 at 12:04

10 votes

0 answers

144 views

Anti-symmetrization on the lattice

asked Jul 10, 2019 at 8:07

8 votes

1 answer

290 views

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

asked Jun 17, 2019 at 14:32

8 votes

1 answer

384 views

Preparing any superposition of fixed Hamming weight states

asked Aug 11, 2020 at 14:23

6 votes

1 answer

148 views

Is there any legitimate information about Microsoft quantum hardware?

asked May 27, 2020 at 13:06

6 votes

0 answers

151 views

Encoding bosonic degrees of freedom

asked Apr 23, 2019 at 16:27

6 votes

2 answers

214 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

173 views

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

asked Oct 18, 2022 at 19:25

6 votes

1 answer

96 views

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

asked Oct 25, 2022 at 20:01

5 votes

1 answer

121 views

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

asked Feb 1, 2022 at 20:17

5 votes

1 answer

101 views

Quantum advantage without phase?

asked Apr 23, 2022 at 8:20

5 votes

0 answers

107 views

Trotter error for bosons in various encodings

asked Feb 19, 2021 at 7:38

5 votes

1 answer

367 views

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

asked Aug 12, 2020 at 17:12

4 votes

2 answers

99 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

0 answers

36 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

3 votes

2 answers

88 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

902 views

How to do state tomography when using sampling in Qiskit?

asked Aug 1, 2020 at 3:40

3 votes

0 answers

82 views

"$W_n$ state" in Bravyi-Kitaev encoding

asked Mar 30, 2020 at 5:31

3 votes

1 answer

653 views

Matrix mod 2 multiplication

asked Apr 7, 2020 at 21:04

3 votes

1 answer

85 views

Block encoding of a diagonal matrix with equidistant eigenvalues

asked Mar 8 at 0:54

2 votes

1 answer

32 views

Comparing qubit values in pairs of qubits

asked Apr 2 at 6:40

2 votes

1 answer

93 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

882 views

Creating a custom VariationalForm in Qiskit

asked May 18, 2020 at 19:17

2 votes

2 answers

530 views

VQE Cirq example

asked Mar 13, 2020 at 2:31

2 votes

1 answer

650 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

456 views

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

asked Jun 7, 2020 at 22:36

2 votes

1 answer

372 views

Trotterizing a Pauli sum in Qiskit

asked Jun 8, 2020 at 18:24

2 votes

0 answers

188 views

Preparing arbitrary two- and multi-qubit states with real amplitudes

asked Oct 6, 2020 at 6:13

2 votes

1 answer

102 views

How do I construct a circuit to reshuffle some computational basis vectors?

asked Nov 14, 2020 at 13:48

Stack Exchange Network

42 Questions

Evaluating expectation values of operators in Qiskit

Anti-symmetrization on the lattice

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

Preparing any superposition of fixed Hamming weight states

Is there any legitimate information about Microsoft quantum hardware?

Encoding bosonic degrees of freedom

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?

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

Quantum advantage without phase?

Trotter error for bosons in various encodings

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

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

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

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

How to do state tomography when using sampling in Qiskit?

"$W_n$ state" in Bravyi-Kitaev encoding

Matrix mod 2 multiplication

Block encoding of a diagonal matrix with equidistant eigenvalues

Comparing qubit values in pairs of qubits

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

Trotterizing a Pauli sum in Qiskit

Preparing arbitrary two- and multi-qubit states with real amplitudes

How do I construct a circuit to reshuffle some computational basis vectors?