光子变量子态:统一表征

IF 2.6 2区物理与天体物理 Q2 OPTICS

Physical Review a Pub Date : 2023-08-25 DOI:10.1103/physreva.108.022425

Stefano Guerrini, M. Win, A. Conti

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引用次数: 0

摘要

本文介绍了光子变量子态(PVQSs)，它概括了通过光子加减运算得到的非经典态。我们从特征函数、准概率分布、Fock表示和Mandel Q参数等方面给出了PVQSs的统一表征。在变光子高斯态(PVGSs)的特殊情况下，特征函数和准概率分布在一个简单的正则积结构中。得到了pvgs准概率分布负性的充分必要条件。统一的表征使设计和分析利用PVQSs的非高斯特性的量子系统成为可能。

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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Photon-varied quantum states: Unified characterization

This paper introduces photon-varied quantum states (PVQSs), which generalize the nonclassical states obtained via photon addition or subtraction operations. We provide a uniﬁed characterization of PVQSs in terms of characteristic function, quasiprobability distribution, Fock representation, and Mandel Q parameter. In the special case of photon-varied Gaussian states (PVGSs), the characteristic functions and the quasiprobability distributions are found to be in a simple canonical product structure. Necessary and sufﬁcient conditions for the negativity of the quasiprobability distributions are also obtained for PVGSs. The uniﬁed characterization enables the design and analysis of quantum systems that exploit the non-Gaussian properties of PVQSs.

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来源期刊

Physical Review a OPTICSPHYSICS, ATOMIC, MOLECULAR & CHEMICA-PHYSICS, ATOMIC, MOLECULAR & CHEMICAL

CiteScore

5.30

自引率

24.10%

发文量

2086

期刊介绍： Physical Review A (PRA) publishes important developments in the rapidly evolving areas of atomic, molecular, and optical (AMO) physics, quantum information, and related fundamental concepts. PRA covers atomic, molecular, and optical physics, foundations of quantum mechanics, and quantum information, including: -Fundamental concepts -Quantum information -Atomic and molecular structure and dynamics; high-precision measurement -Atomic and molecular collisions and interactions -Atomic and molecular processes in external fields, including interactions with strong fields and short pulses -Matter waves and collective properties of cold atoms and molecules -Quantum optics, physics of lasers, nonlinear optics, and classical optics