Statistical measures of complexity for quantum systems with continuous variables
نویسندگان
چکیده
منابع مشابه
Quantum Cloning with Continuous Variables
Quantum information theory has developed dramatically over the past decade, driven by the prospects of quantum-enhanced communication and computation systems. Among the most striking successes, one finds for example the discovery of quantum factoring, quantum key distribution, or quantum teleportation. Most of these concepts were initially developed for discrete quantum variables, in particular...
متن کاملQuantum information with continuous variables
Quantum information is a rapidly advancing area of interdisciplinary research. It may lead to real-world applications for communication and computation unavailable without the exploitation of quantum properties such as nonorthogonality or entanglement. This article reviews the progress in quantum information based on continuous quantum variables, with emphasis on quantum optical implementations...
متن کاملStatistical Measures of Complexity for Strongly Interacting Systems
In recent studies, new measures of complexity for nonlinear systems have been proposed based on probabilistic grounds, as the LMC measure (Phys. Lett. A 209 (1995) 321). All these measures share an intuitive consideration: complexity seems to emerge in nature close to instability points, as for example the phase transition points characteristic of critical phenomena. Here we discuss these measu...
متن کاملStatistical Measures of Complexity for Strongly Interacting Systems
In recent studies, new measures of complexity for nonlinear systems have been proposed based on probabilistic grounds, as the LMC measure (Phys. Lett. A 209 (1995) 321) or the SDL measure (Phys. Rev. E 59 (1999) 2). All these measures share an intuitive consideration: complexity seems to emerge in nature close to instability points, as for example the phase transition points characteristic of c...
متن کاملTelecloning of continuous quantum variables.
We propose entangled (M+1)-mode quantum states as a multiuser quantum channel for continuous-variable communication. Arbitrary quantum states can be sent via this channel simultaneously to M remote and separated locations with equal minimum excess noise in each output mode. For a set of coherent-state inputs, the channel realizes optimal symmetric 1-->M cloning at a distance ("telecloning"). It...
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ژورنال
عنوان ژورنال: Physica A: Statistical Mechanics and its Applications
سال: 2012
ISSN: 0378-4371
DOI: 10.1016/j.physa.2012.06.058