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Representing Qubit Operator in Circuit

qiskit programming circuit-construction

modified yesterday Markus Heinrich 2,071

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Can the ancilla for Qiskit's mcx with mode="recursion" be dirty?

qiskit programming quantum-gate circuit-construction ibm

modified 2 days ago CommunityBot 1

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What is a unitary operator that makes all the amplitudes all negative on the arbitrary state of $n$ qubits?

quantum-state circuit-construction

modified Jan 18 at 4:11 Sebastián V. Romero 141

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Multiplication using nearest neighbour quantum gates

quantum-gate quantum-state circuit-construction

answered Jan 14 at 20:38 Craig Gidney 18k

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Which backends implement the if-else operation?

qiskit circuit-construction

answered Jan 10 at 16:17 Matthew Treinish 1,002

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Encoding a block unitary matrix in a quantum circuit

circuit-construction matrix-representation linear-algebra

answered Jan 10 at 12:02 DaftWullie 43.2k

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Is it true that $Ry(\pi/2)\sigma_zRy(-\pi/2)=\sigma_x$?

qiskit circuit-construction pauli-gates

modified Jan 10 at 6:07 Adam Zalcman 11.6k

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Native Gate Decomposition

quantum-gate circuit-construction gate-synthesis

modified Jan 7 at 14:17 Ken Robbins 105

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How to impliment Projector Control-Not in Qiskit?

qiskit circuit-construction

modified Jan 6 at 13:41 Shashi Kumar 71

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Confusion with the number of CNOTs in a circuit

quantum-gate circuit-construction quantum-circuit gate-synthesis

answered Jan 3 at 9:31 Craig Gidney 18k

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Simulating the Ising-like model as a quantum circuit

circuit-construction quantum-circuit hamiltonian-simulation

modified Dec 31 '21 at 1:11 user1271772 11.6k

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Test equivalence of circuits exactly on qiskit

qiskit programming circuit-construction

answered Dec 30 '21 at 11:45 Parmeet Singh EP 066 269

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How to implement general 2-qubit gate in n-qubit system?

quantum-gate circuit-construction

answered Dec 29 '21 at 6:51 3yakuya 575

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Quantum Fourier Transform without SWAPs

quantum-gate circuit-construction quantum-fourier-transform

modified Dec 19 '21 at 3:05 narip 2,182

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