Incorporating Encoding into Quantum System Design

Fuente: arXiv
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Autore principale: Kay, Alastair
Natura: Preprint
Pubblicazione: 2022
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author Kay, Alastair
author_facet Kay, Alastair
contents When creating a quantum system whose natural dynamics provide useful computational operations, designers have two key tools at their disposal: the (constrained) choice of both the Hamiltonian and the the initial state of the system (an encoding). Typically, we fix the design, and utilise encodings post factum to tolerate experimental imperfections. In this paper, we describe a vital insight that incorporates encoding into the design process, with radical consequences. This transforms the study of perfect state transfer from the unrealistic scenario of specifying the Hamiltonian of an entire system to the far more realistic situation of being given a Hamiltonian over which we had no choice in the design, and designing time control of just two parameters to still achieve perfect transfer.
format Preprint
id arxiv_https___arxiv_org_abs_2207_01954
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle Incorporating Encoding into Quantum System Design
Kay, Alastair
Quantum Physics
When creating a quantum system whose natural dynamics provide useful computational operations, designers have two key tools at their disposal: the (constrained) choice of both the Hamiltonian and the the initial state of the system (an encoding). Typically, we fix the design, and utilise encodings post factum to tolerate experimental imperfections. In this paper, we describe a vital insight that incorporates encoding into the design process, with radical consequences. This transforms the study of perfect state transfer from the unrealistic scenario of specifying the Hamiltonian of an entire system to the far more realistic situation of being given a Hamiltonian over which we had no choice in the design, and designing time control of just two parameters to still achieve perfect transfer.
title Incorporating Encoding into Quantum System Design
topic Quantum Physics
url https://arxiv.org/abs/2207.01954