Improving approximate vacuum prepared by the adiabatic quantum computation

Improving approximate vacuum prepared by the adiabatic quantum computation

According to the quantum adiabatic theorem, we can in principle obtain a true vacuum of a quantum system starting from a trivial vacuum of a simple Hamiltonian. In actual adiabatic digital quantum simulation with finite time length and non-infinitesimal time steps, we can only obtain an approximate...

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1. Verfasser: Oshima, Kazuto
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Adiabatic flow
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Quantum theory
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description According to the quantum adiabatic theorem, we can in principle obtain a true vacuum of a quantum system starting from a trivial vacuum of a simple Hamiltonian. In actual adiabatic digital quantum simulation with finite time length and non-infinitesimal time steps, we can only obtain an approximate vacuum that is supposed to be a superposition of a true vacuum and excited states. We propose a procedure to improve the approximate vacuum.
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subjects Adiabatic flow
Quantum computing
Quantum theory
title Improving approximate vacuum prepared by the adiabatic quantum computation
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