scholarly journals Non-linear quantum-classical scheme to simulate non-equilibrium strongly correlated fermionic many-body dynamics

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
J. M. Kreula ◽  
S. R. Clark ◽  
D. Jaksch
Keyword(s):  
Strongly Correlated ◽  
Many Body ◽  
Classical Scheme ◽  
Body Dynamics ◽  
Non Linear ◽  
Linear Quantum ◽  
Non Equilibrium

scholarly journals High-harmonic spectroscopy of ultrafast many-body dynamics in strongly correlated systems

2018 ◽  
Vol 12 (5) ◽  
pp. 266-270 ◽  
Author(s):  
R. E. F. Silva ◽  
Igor V. Blinov ◽  
Alexey N. Rubtsov ◽  
O. Smirnova ◽  
M. Ivanov
Keyword(s):  
High Harmonic ◽  
Strongly Correlated Systems ◽  
Strongly Correlated ◽  
Many Body ◽  
Correlated Systems ◽  
Body Dynamics

scholarly journals Studying non-equilibrium many-body dynamics using one-dimensional Bose gases

2014 ◽  
Author(s):  
Tim Langen ◽  
Michael Gring ◽  
Maximilian Kuhnert ◽  
Bernhard Rauer ◽  
Remi Geiger ◽  
...  
Keyword(s):  
Many Body ◽  
Bose Gases ◽  
One Dimensional ◽  
Body Dynamics ◽  
Non Equilibrium

Functional-Integral Approach to Non-Equilibrium Quantum Many-Body Dynamics

2013 ◽  
pp. 241-255 ◽  
Author(s):  
Cédric Bodet ◽  
Matthias Kronenwett ◽  
Boris Nowak ◽  
Dénes Sexty ◽  
Thomas Gasenzer
Keyword(s):  
Functional Integral ◽  
Integral Approach ◽  
Many Body ◽  
Body Dynamics ◽  
Non Equilibrium

Many body dynamics

2018 ◽  
Author(s):  
Joseph F. Boudreau ◽  
Eric S. Swanson
Keyword(s):  
Statistical Mechanics ◽  
Body Problem ◽  
Many Body ◽  
Complex Objects ◽  
Constrained Dynamics ◽  
Gravitational Systems ◽  
Body Dynamics ◽  
System Temperature ◽  
Speed Up ◽  
Gravitating Systems

Specialized techniques for solving the classical many-body problem are explored in the context of simple gases, more complicated gases, and gravitating systems. The chapter starts with a brief review of some important concepts from statistical mechanics and then introduces the classic Verlet method for obtaining the dynamics of many simple particles. The practical problems of setting the system temperature and measuring observables are discussed. The issues associated with simulating systems of complex objects form the next topic. One approach is to implement constrained dynamics, which can be done elegantly with iterative methods. Gravitational systems are introduced next with stress on techniques that are applicable to systems of different scales and to problems with long range forces. A description of the recursive Barnes-Hut algorithm and particle-mesh methods that speed up force calculations close out the chapter.

scholarly journals Periodically refreshed baths to simulate open quantum many-body dynamics

2021 ◽  
Vol 104 (4) ◽  
Author(s):  
Archak Purkayastha ◽  
Giacomo Guarnieri ◽  
Steve Campbell ◽  
Javier Prior ◽  
John Goold
Keyword(s):  
Many Body ◽  
Open Quantum ◽  
Body Dynamics

scholarly journals Ergodic and nonergodic many-body dynamics in strongly nonlinear lattices

2021 ◽  
Vol 103 (5) ◽  
Author(s):  
Dominik Hahn ◽  
Juan-Diego Urbina ◽  
Klaus Richter ◽  
Rémy Dubertrand ◽  
S. L. Sondhi
Keyword(s):  
Many Body ◽  
Strongly Nonlinear ◽  
Nonlinear Lattices ◽  
Body Dynamics

scholarly journals Epidemic growth and Griffiths effects on an emergent network of excited atoms

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
T. M. Wintermantel ◽  
M. Buchhold ◽  
S. Shevate ◽  
M. Morgado ◽  
Y. Wang ◽  
...  
Keyword(s):  
Complex Systems ◽  
Power Laws ◽  
Excitation Density ◽  
Griffiths Phase ◽  
Many Body ◽  
Excited Atoms ◽  
Equilibrium Dynamics ◽  
Many Body Systems ◽  
Excitation Number ◽  
Non Equilibrium

AbstractWhether it be physical, biological or social processes, complex systems exhibit dynamics that are exceedingly difficult to understand or predict from underlying principles. Here we report a striking correspondence between the excitation dynamics of a laser driven gas of Rydberg atoms and the spreading of diseases, which in turn opens up a controllable platform for studying non-equilibrium dynamics on complex networks. The competition between facilitated excitation and spontaneous decay results in sub-exponential growth of the excitation number, which is empirically observed in real epidemics. Based on this we develop a quantitative microscopic susceptible-infected-susceptible model which links the growth and final excitation density to the dynamics of an emergent heterogeneous network and rare active region effects associated to an extended Griffiths phase. This provides physical insights into the nature of non-equilibrium criticality in driven many-body systems and the mechanisms leading to non-universal power-laws in the dynamics of complex systems.

Stacking angle dependent multiple excitonic resonances in bilayer tungsten diselenide

Nanophotonics ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 3881-3887
Author(s):  
Ankit Arora ◽  
Pramoda K. Nayak ◽  
Tejendra Dixit ◽  
Kolla Lakshmi Ganapathi ◽  
Ananth Krishnan ◽  
...  
Keyword(s):  
Chemical Vapour ◽  
Optoelectronic Devices ◽  
Interlayer Coupling ◽  
Higher Order ◽  
Doping Effect ◽  
Many Body ◽  
Si Substrate ◽  
Tungsten Diselenide ◽  
Body Dynamics ◽  
Insight Into

AbstractWe report on multiple excitonic resonances in bilayer tungsten diselenide (BL-WSe2) stacked at different angles and demonstrate the use of the stacking angle to control the occurrence of these excitations. BL-WSe2 with different stacking angles were fabricated by stacking chemical vapour deposited monolayers and analysed using photoluminescence measurements in the temperature range 300–100 K. At reduced temperatures, several excitonic features were observed and the occurrences of these exitonic resonances were found to be stacking angle dependent. Our results indicate that by controlling the stacking angle, it is possible to excite or quench higher order excitations to tune the excitonic flux in optoelectronic devices. We attribute the presence/absence of multiple higher order excitons to the strength of interlayer coupling and doping effect from SiO2/Si substrate. Understanding interlayer excitations will help in engineering excitonic devices and give an insight into the physics of many-body dynamics.

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