Uncertainty relations emerging from the Tsallis entropy are derived and discussed. In particular we found a positively defined function that saturates the so called entropic inequalities for entropies characterizing the physical states under consideration.
From the sandwiched quantum relative Tsallis entropy to its conditional form: Separability criterion beyond local and global spectra
当两个密度矩阵不对易时,推广了两个密度矩阵的量子相对Renyi熵,并由此确定了一个条件熵.这是在这里扩展到相应的Tsallis相对熵和它的条件形式。这种新的Tsallis条件熵的表达式证明了纠缠超越了基于复合量子态的全局和局域谱的方法。当约化的密度矩阵恰好是最大混合态时,该条件熵与Abe和Rajagopal(Physica A 289,157(2001))早先导出的Tsallis熵的表达式一致。本文研究了单参数W态族和GHZ态族在3和4量子比特下的可分性范围,结果表明,在其中一个分区中,由负Tsallis条件熵得到的结果与由Peres部分转置准则得到的结果是一致的.该标准被证明是非频谱通过其实用性,在确定纠缠等谱密度矩阵。
Coherence is a fundamental ingredient in quantum physics and a key resource in quantum information processing. The quantification of quantum coherence is of great importance. We present a family of coherence quantifiers based on the Tsallis relative operator entropy. Shannon inequality and its reverse one in Hilbert space operators derived by Furuta [Linear Algebra Appl. 381 (2004) 219] are extended in terms of the parameter of the Tsallis relative operator entropy. These quantifiers are shown to satisfy all the standard criteria for a well-defined measure of coherence and include some existin…
Bipartite separability of one parameter families of states using conditional quantum relative Tsallis entropy
Kuvempu University(库韦姆普大学);Inspire Institute Inc.(Inspire研究所);Harish-Chandra Research Institute(哈里什-钱德拉研究所);Institute of Mathematical Sciences(数学科学研究所);Bangalore University(班加罗尔大学)
Remedying the strong monotonicity of the coherence measure in terms of the Tsallis relative $α$ entropy
相干是非经典系统最基本的量子特性。对资源理论中连贯性的理解引起了人们越来越多的兴趣,其中连贯性的量化是一个重要的组成部分。一个令人满意的措施应该符合某些标准。看来最关键的准则应该是强单调性,即在(次选择)非相干操作下平均相干度不增加。最近,Tsallis相对$α$熵[A. E. Rastegin,Phys. Rev. A \textbf{93},032136(2016)]已尝试量化相干性。但它违背了强单调性,即使它可以明确区分相干态和非相干态的单调性。在这里,我们建立了一个家庭的相干量词是密切相关的Tsallis相对$α$熵。证明了这类量词满足所有的标准标准,特别是涵盖了几种典型的连贯测度。
The generalized uncertainty principle (GUP) is a phenomenological model whose purpose is to account for a minimal length scale (e.g., Planck scale or characteristic inverse-mass scale in effective quantum description) in quantum systems. In this Letter, we study possible observational effects of GUP systems in their decoherence domain. We first derive coherent states associated to GUP and unveil that in the momentum representation they coincide with Tsallis' probability amplitudes, whose non-extensivity parameter $q$ monotonically increases with the GUP deformation parameter $β$. Secondly, for…
On Estimating the Quantum Tsallis Relative Entropy
School of Informatics, University of Edinburgh(爱丁堡大学信息学院);Institute of Software, CAS(中国科学院软件研究所);School of Computer Science, Shanghai Jiao Tong University(上海交通大学计算机科学与技术学院)