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Are multi-qubit control RX gates scaling exponentially?

quantum-gate resource-request

modified 34 mins ago Craig Gidney 11.3k

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Find unitary such that $U:|i\rangle|0\rangle\rightarrow|i\rangle|A_i\rangle$

quantum-gate circuit-construction gate-synthesis unitarity

answered 19 hours ago Mateus Araújo 897

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Is it possible to express $U_1(\lambda)$ through the gates $R_x, R_y, R_z$ while maintaining the phase? In Qiskit for example

quantum-gate qiskit gate-synthesis

modified 22 hours ago Adam Zalcman 4,437

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How to construct a controlled-Hadamard gate using single qubit gates and controlled phase-shift?

quantum-gate quantum-state circuit-construction textbook-and-exercises gate-synthesis

modified 22 hours ago Adam Zalcman 4,437

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150

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Understanding Grover's Algorithm

quantum-gate quantum-state algorithm grovers-algorithm

modified 2 days ago glS 12.3k

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81

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What gate combinations create entangled two-qubit states?

quantum-gate quantum-state algorithm entanglement bell-basis

modified Mar 4 at 12:15 glS 12.3k

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How do I build a gate from a matrix on Qiskit?

quantum-gate programming qiskit gate-synthesis

answered Mar 3 at 4:03 Balint Pato 322

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How to get a qubit into superposition?

quantum-gate quantum-state entanglement textbook-and-exercises superposition

modified Mar 3 at 3:24 glS 12.3k

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How do I get sate vector for each shot running on a quantum computer?

programming quantum-gate qiskit quantum-state

modified Mar 2 at 9:05 glS 12.3k

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Implementing controlled $U_3$ gate from $R_{\hat{n}}$ with given parameters

quantum-gate

modified Mar 2 at 1:59 ZR- 1,030

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3-qubit phase shift gate/circuit implementation without any Ancilla qubits

quantum-gate circuit-construction unitarity phase-estimation quantum-circuit

modified Mar 1 at 22:48 user1271772 8,896

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How does a general rotation $R_\hat{n}(\theta)$ related to $U_3$ gate?

quantum-gate textbook-and-exercises nielsen-and-chuang

modified Mar 1 at 20:01 glS 12.3k

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Is there any quantum gate that can change quantum hardware topology(architecture)?

quantum-gate qubit-mapping hardware-topology

modified Mar 1 at 19:59 glS 12.3k

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Pauli I in eoh procedure doesn't become a global phase gate in qiskit evolution_instruction method. Possible consequences

quantum-gate qiskit programming

modified Mar 1 at 17:01 Community♦ 1

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