Results 81 to 90 of about 590,145 (336)

Correlation Functions of Quantum Artin System

Universe, 2020
It was conjectured by Maldacena, Shenker and Stanford that the classical chaos can be diagnosed in thermal quantum systems by using an out-of-time-order correlation function.
Hrachya Babujian, Rubik Poghossian, George Savvidy   +2 more
doaj   +1 more source

Quantum Groups, Correlation Functions and Infrared Divergences

, 1993
We show in two simple examples that for one-dimensional quantum chains with quantum group symmetries, the correlation functions of local operators are, in general, infrared divergent.
Barouch, Barouch, Becchi, Cardy, David, Deguchi, Deguchi, den Nijs, Elitzur, Ge, Grignani, Haye Hinrichsen, Hinrichsen, Jimbo, Perk, Saleur, Schultz, Siggia, Vaidya, Vladimir Rittenberg   +19 more
core   +1 more source

Quantumness and the role of locality on quantum correlations [PDF]

Physical Review A, 2016
Quantum correlations in a physical system are usually studied with respect to a unique (fixed) decomposition of the system into subsystems, without fully exploiting the rich structure of the state-space. Here, we show several examples in which the consideration of different ways to decompose a physical system enhances the quantum resources and accounts
Ángel Ricardo Plastino, Guido Bellomo, Ángel Luis Plastino   +2 more
openaire   +2 more sources

First‐Principles Modeling of Solid Solution Softening and Hardening Effects in Al–Mg–Zr–Si Aluminum Alloys

Advanced Engineering Materials, EarlyView.
The role of various alloying elements in face‐centered cubic aluminum on the barrier of a Shockley partial dislocation during its motion is presented. The study aims to understand how alloying atoms such as Mg, Si, and Zr affect the energy landscape for dislocation motion, thus influencing the solid solution hardening and softening in aluminum, which ...
Inna Plyushchay, Zhengqing Wei, Nebahat Bulut, Sibylle Gemming   +3 more
wiley   +1 more source

Nonquantum information gain from higher-order correlation functions

Physical Review Research, 2020
Nonlinear correlation functions are at the heart of quantum theory. The second-order correlation function g^{(2)}(τ) has been a cornerstone of quantum optics for over half a century, and a myriad of quantum and classical applications has been discovered.
Peter Grünwald
doaj   +1 more source

Dual quantum-correlation paradigms exhibit opposite statistical-mechanical properties

, 2012
We report opposite statistical mechanical behaviors of the two major paradigms in which quantum correlation measures are defined, viz., the entanglement-separability paradigm and the information-theoretic one.
A. Sen(De), Aditi Sen(De), G. D. Mahan, J. S. Bell, M. A. Nielsen, R. Prabhu, Ujjwal Sen, W. H. Zurek   +7 more
core   +1 more source

Direct Electron Detection Electron Energy‐Loss Spectroscopy: Speeding Up 2D Analytical In Situ Transmission Electron Microscopy for Aluminum Alloys

Advanced Engineering Materials, EarlyView.
Scanning transmission electron microscopy imaging techniques are an essential tool to document dynamic developments, such as precipitation in aluminum alloys, during in situ heating experiments using transmission electron microscopy. However, in many cases, chemical information is required to interpret complex nanoscale processes.
Evelin Fisslthaler, Martina Dienstleder, Judith Lammer, Moritz Theissing, Daniel Knez   +4 more
wiley   +1 more source

Charge transport through single molecules, quantum dots, and quantum wires

, 2010
We review recent progresses in the theoretical description of correlation and quantum fluctuation phenomena in charge transport through single molecules, quantum dots, and quantum wires.
Andergassen S, Awschalom D D, Berkovits R, Boese D, Claessen R, Costi T A, Daley A, Ebbecke J, Eckel J Heidrich-Meisner F Jakobs S G Thorwart M Pletyukhov M Egger R, Eliasen A Paaske J Flensberg K Smerat S Leijnse M Wegewijs M R Jørgensen H I Monthioux M Nygård J, Glazman L I, H Schoeller, Haldane F D M, Hedden R, Herzog S, Herzog S Wegewijs M R, J Splettstoesser, Jakobs S, Jakobs S G, Jakobs S Pletyukhov M Schoeller H, Karrasch C, Karrasch C, Karrasch C, Karrasch C Andergassen S Pletyukhov M Schuricht D Borda L Meden V Schoeller H, Koller S Leijnse M Wegewijs M R Grifoni M, König J, Levitov L S, M R Wegewijs, Meden V, Misiorny M, Misiorny M, Natelson D, Osorio E A, Pustilnik M, Reckermann F, Repp J Liljeroth P Meyer G, S Andergassen, Salmhofer M, Schoeller H, Schoeller H, Schoeller H, Schönhammer K, V Meden, Wegewijs M R, Werner P Oka T Eckstein M Millis A J, Wächter P, Zyazin A S   +46 more
core   +1 more source

Simulating quantum measurements and quantum correlations

, 2023
This PhD thesis is focused on the quantum measurement simulability problem, that is, deciding whether a given measurement can be simulated when only a restricted subset of measurements is accessible. We provide an operational framework for this problem based on classical manipulations over the set of simulators. Particular cases of interest are further
openaire   +4 more sources

Quantumness of correlations, quantumness of ensembles and quantum data hiding [PDF]

New Journal of Physics, 2014
We study the quantumness of correlations for ensembles of bi- and multi-partite systems and relate it to the task of quantum data hiding. Quantumness is here intended in the sense of minimum average disturbance under local measurements. We consider a very general framework, but focus on local complete von Neumann measurements as cause of the ...
John Calsamiglia, Marco Piani, Marco Piani, Varun Narasimhachar   +3 more
openaire   +7 more sources