Reflection and transmission amplitudes in a digital quantum simulation

IF 5.8 2区物理与天体物理 Q1 OPTICS

EPJ Quantum Technology Pub Date : 2024-10-09 DOI:10.1140/epjqt/s40507-024-00277-3

Giuseppe Mussardo, Andrea Stampiggi, Andrea Trombettoni

引用次数: 0

Abstract

In this paper we show how to measure in the setting of digital quantum simulations the reflection and transmission amplitudes of the one-dimensional scattering of a particle with a short-ranged potential. The main feature of the protocol is the coupling between the particle and an ancillary spin-1/2 degree of freedom. This allows us to reconstruct tomographically the scattering amplitudes, which are in general complex numbers, from the readout of one qubit. Applications of our results are discussed.

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数字量子模拟中的反射和透射振幅

在本文中，我们展示了如何在数字量子模拟环境中测量粒子与短程势能的一维散射的反射和透射振幅。该方案的主要特点是粒子与辅助自旋-1/2 自由度之间的耦合。这使得我们能够从一个量子位的读出中，以断层扫描的方式重建散射振幅（一般来说是复数）。我们还讨论了结果的应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

EPJ Quantum Technology Physics and Astronomy-Atomic and Molecular Physics, and Optics

CiteScore

7.70

自引率

7.50%

发文量

审稿时长

71 days

期刊介绍： Driven by advances in technology and experimental capability, the last decade has seen the emergence of quantum technology: a new praxis for controlling the quantum world. It is now possible to engineer complex, multi-component systems that merge the once distinct fields of quantum optics and condensed matter physics. EPJ Quantum Technology covers theoretical and experimental advances in subjects including but not limited to the following: Quantum measurement, metrology and lithography Quantum complex systems, networks and cellular automata Quantum electromechanical systems Quantum optomechanical systems Quantum machines, engineering and nanorobotics Quantum control theory Quantum information, communication and computation Quantum thermodynamics Quantum metamaterials The effect of Casimir forces on micro- and nano-electromechanical systems Quantum biology Quantum sensing Hybrid quantum systems Quantum simulations.