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We use the smooth entropy approach to treat the problems of binary quantum hypothesis testing and the transmission of classical information through a quantum channel. We provide lower and upper bounds on the optimal type II error of quantum…

量子物理 · 物理学 2013-12-11 Nilanjana Datta , Milan Mosonyi , Min-Hsiu Hsieh , Fernando G. S. L. Brandao

We derive the monotonicity of the quantum relative entropy by an elementary operational argument based on Stein's lemma in quantum hypothesis testing. For the latter we present an elementary and short proof that requires the law of large…

量子物理 · 物理学 2012-03-23 Igor Bjelakovic , Rainer Siegmund-Schultze

A new proof of the direct part of the quantum channel coding theorem is shown based on a standpoint of quantum hypothesis testing. A packing procedure of mutually noncommutative operators is carried out to derive an upper bound on the error…

量子物理 · 物理学 2007-05-23 Tomohiro Ogawa , Hiroshi Nagaoka

This paper studies the difficulty of discriminating between an arbitrary quantum channel and a "replacer" channel that discards its input and replaces it with a fixed state. We show that, in this particular setting, the most general…

量子物理 · 物理学 2016-06-07 Tom Cooney , Milán Mosonyi , Mark M. Wilde

The quantum Stein's lemma is a fundamental result of quantum hypothesis testing in the context of distinguishing two quantum states. A recent conjecture, known as the ``generalized quantum Stein's lemma", asserts that this result is true in…

量子物理 · 物理学 2024-07-16 Li Gao , Mizanur Rahaman

The generalized quantum Stein's lemma provides an explicit expression for the optimal error exponent when distinguishing many independent and identically distributed (iid) copies of a given bipartite state from the set of separable…

量子物理 · 物理学 2026-05-19 Giulia Mazzola , David Sutter , Renato Renner

The quantum dichotomies problem asks at what rate one pair of quantum states can be approximately mapped into another pair of quantum states. In the many copy limit and for vanishing error, the optimal rate is known to be given by the ratio…

量子物理 · 物理学 2025-04-03 Mario Berta , Yongsheng Yao

This expository article gives an overview of the theory of hypothesis testing of quantum states in finite dimensional Hilbert spaces. Optimal measurement strategy for testing binary quantum hypotheses, which result in minimum error…

量子物理 · 物理学 2018-03-14 J. Prabhu Tej , Syed Raunaq Ahmed , A. R. Usha Devi , A. K. Rajagopal

We extend from the hyperfinite setting to general von Neumann algebras Mosonyi and Ogawa's (2015) and Mosonyi and Hiai's (2023) results showing the operational interpretation of sandwiched relative R\'enyi entropy in the strong converse of…

量子物理 · 物理学 2025-07-18 Marius Junge , Nicholas Laracuente

The Generalized Quantum Stein's Lemma is a theorem in quantum hypothesis testing that provides an operational meaning to the relative entropy within the context of quantum resource theories. Its original proof was found to have a gap, which…

量子物理 · 物理学 2025-10-13 Alex Meiburg , Leonardo A. Lessa , Rodolfo R. Soldati

One of the key tasks in physics is to perform measurements in order to determine the state of a system. Often, measurements are aimed at determining the values of physical parameters, but one can also ask simpler questions, such as "is the…

量子物理 · 物理学 2021-07-01 Jan de Boer , Victor Godet , Jani Kastikainen , Esko Keski-Vakkuri

We consider the problem of discriminating between two different states of a finite quantum system in the setting of large numbers of copies, and find a closed form expression for the asymptotic exponential rate at which the specified error…

量子物理 · 物理学 2011-05-13 K. M. R. Audenaert , M. Nussbaum , A. Szkola , F. Verstraete

We use a R\'enyi entropy method to prove strong converse theorems for certain information-theoretic tasks which involve local operations and quantum or classical communication between two parties. These include state redistribution,…

量子物理 · 物理学 2016-08-10 Felix Leditzky , Mark M. Wilde , Nilanjana Datta

Understanding the power and limitations of classical and quantum information and how they differ is a fundamental endeavor. In property testing of distributions, a tester is given samples over a typically large domain $\{0,1\}^n$. An…

量子物理 · 物理学 2024-11-26 Fernando Granha Jeronimo , Nir Magrafta , Joseph Slote , Pei Wu

We study the Hoeffding regime of composite quantum hypothesis testing, in which each hypothesis is specified by a sequence of sets of quantum states. We establish quantum Hoeffding bounds under a set of structural assumptions, orthogonal to…

量子物理 · 物理学 2026-05-05 Masahito Hayashi , Kun Fang

We derive a necessary and sufficient condition for a sequence of quantum measurements to achieve the optimal performance in quantum hypothesis testing. Using an information-spectrum method, we discuss what quantum measurement we should…

量子物理 · 物理学 2009-11-07 Masahito Hayashi

We present a generalization of quantum Stein's Lemma to the situation in which the alternative hypothesis is formed by a family of states, which can moreover be non-i.i.d.. We consider sets of states which satisfy a few natural properties,…

量子物理 · 物理学 2010-03-10 Fernando G. S. L. Brandao , Martin B. Plenio

We consider the asymmetric formulation of quantum hypothesis testing, where two quantum hypotheses have different associated costs. In this problem, the aim is to minimize the probability of false negatives and the optimal performance is…

量子物理 · 物理学 2015-09-04 Gaetana Spedalieri , Samuel L. Braunstein

Quantum hypothesis testing concerns the discrimination between quantum states. This paper introduces a novel lower bound for asymmetric quantum hypothesis testing that is based on the Nussbaum-Szko{\l}a mapping. The lower bound provides a…

量子物理 · 物理学 2026-05-21 Jorge Lizarribar-Carrillo , Gonzalo Vazquez-Vilar , Tobias Koch

A lemma stated by Ke Li in [arXiv:1208.1400] has been used in e.g. [arXiv:1510.04682,arXiv:1706.04590,arXiv:1612.01464,arXiv:1308.6503,arXiv:1602.08898] for various tasks in quantum hypothesis testing, data compression with quantum side…

数学物理 · 物理学 2023-01-10 Yan Pautrat , Simeng Wang