Evaluating energy differences on a quantum computer with robust phase estimation

We adapt the robust phase estimation algorithm to the evaluation of energy differences between two eigenstates using a quantum computer. This approach does not require controlled unitaries between auxiliary and system registers or even a single auxiliary qubit. As a proof of concept, we calculate th...

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Veröffentlicht in:	arXiv.org 2020-07
Hauptverfasser:	Russo, A E, Rudinger, K M, Morrison, B C A, Baczewski, A D
Format:	Artikel
Sprache:	eng
Schlagworte:	Algorithms Eigenvalues Eigenvectors Electrons Evaluation Physics - Quantum Physics Quantum computers Quantum computing Qubits (quantum computing) Robustness
Online-Zugang:	Volltext
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