Basic exclusivity graphs in quantum correlations
نویسندگان
چکیده
منابع مشابه
Quantum correlations are tightly bound by the exclusivity principle.
It is a fundamental problem in physics of what principle limits the correlations as predicted by our current description of nature, based on quantum mechanics. One possible explanation is the "global exclusivity" principle recently discussed in Phys. Rev. Lett. 110, 060402 (2013). In this work we show that this principle actually has a much stronger restriction on the probability distribution. ...
متن کاملSpectral correlations of individual quantum graphs.
We investigate the spectral properties of chaotic quantum graphs. We demonstrate that the energy-average over the spectrum of individual graphs can be traded for the functional average over a supersymmetric nonlinear -model action. This proves that spectral correlations of individual quantum graphs behave according to the predictions of Wigner-Dyson random matrix theory. We explore the stabilit...
متن کاملThree-point correlations for quantum star graphs
Abstract. We compute the three point correlation function for the eigenvalues of the Laplacian on quantum star graphs in the limit where the number of edges tends to infinity. This extends a work by Berkolaiko and Keating, where they get the 2point correlation function and show that it follows neither Poisson, nor random matrix statistics. It makes use of the trace formula and combinatorial ana...
متن کاملQuantum Graphs I. Some Basic Structures
We use the name “quantum graph” for a graph considered as a one-dimensional singular variety and equipped with a self-adjoint differential (in some cases pseudo-differential) operator (“Hamiltonian”). There are manifold reasons for studying quantum graphs. They naturally arise as simplified (due to reduced dimension) models in mathematics, physics, chemistry, and engineering (nanotechnology), w...
متن کاملMultipartite quantum correlations in open quantum systems
In this paper, we present a measure of quantum correlation for a multipartite system, defined as the sum of the correlations for all possible partitions. Our measure can be defined for quantum discord (QD), geometric quantum discord or even for entanglement of formation (EOF). For tripartite pure states, we show that the multipartite measures for the QD and the EOF are equivalent, which allows ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review A
سال: 2013
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.88.032104