Results 71 to 80 of about 64,609 (182)

Dynamical mean field theory for real materials on a quantum computer

npj Computational Materials
Quantum computers (QC) could harbor the potential to significantly advance materials simulations, particularly at the atomistic scale involving strongly correlated fermionic systems, where an accurate description of quantum many-body effects scales ...
Johannes Selisko, Maximilian Amsler, Christopher Wever, Yukio Kawashima, Georgy Samsonidze, Rukhsan Ul Haq, Francesco Tacchino, Ivano Tavernelli, Thomas Eckl   +8 more
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Basics of the density functional theory

AIMS Materials Science, 2017
The density functional theory (DFT) established itself as a well reputed way to compute the electronic structure in most branches of chemistry and materials science.
Jean-Louis Bretonnet
doaj   +1 more source

Quantum scaling for the metal–insulator transition in a two-dimensional electron system

Scientific Reports
The quantum phase transition observed experimentally in two-dimensional (2D) electron systems has been a subject of theoretical and experimental studies for almost 30 years.
V. Kagalovsky, S. V. Kravchenko, D. Nemirovsky   +2 more
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Massless Lifshitz field theory for arbitrary z

Journal of High Energy Physics
By using the notion of fractional derivatives, we introduce a class of massless Lifshitz scalar field theory in (1+1)-dimension with an arbitrary anisotropy index z.
Jaydeep Kumar Basak, Adrita Chakraborty, Chong-Sun Chu, Dimitrios Giataganas, Himanshu Parihar   +4 more
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Many-Body Quantum Chaos: Analytic Connection to Random Matrix Theory

Physical Review X, 2018
A key goal of quantum chaos is to establish a relationship between widely observed universal spectral fluctuations of clean quantum systems and random matrix theory (RMT).
Pavel Kos, Marko Ljubotina, Tomaž Prosen   +2 more
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Stochastic Gravity: Theory and Applications

Living Reviews in Relativity, 2004
Whereas semiclassical gravity is based on the semiclassical Einstein equation with sources given by the expectation value of the stress-energy tensor of quantum fields, stochastic semiclassical gravity is based on the Einstein-Langevin equation, which ...
Hu Bei Lok, Verdaguer Enric
doaj  

Photon transport in a gas of two-level atoms: unveiling quantum light creation

New Journal of Physics
We present a theoretical analysis of nearly monochromatic light propagation through a gas of two-level atoms using the Heisenberg–Langevin equation method.
L Yatsenko, M Cordier, L Pache, M Schemmer, P Schneeweiss, J Volz, A Rauschenbeutel   +6 more
doaj   +1 more source

Improved real-time dynamics from imaginary frequency lattice simulations

EPJ Web of Conferences, 2018
The computation of real-time properties, such as transport coefficients or bound state spectra of strongly interacting quantum fields in thermal equilibrium is a pressing matter.
Pawlowski Jan M., Rothkopf Alexander
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An inverse problem in quantum field theory and canonical correlation functions [PDF]

, 1999
Masao Hirokawa
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THE ASYMPTOTICS OF THE CORRELATION FUNCTIONS IN (1+1)d QUANTUM FIELD THEORY FROM FINITE SIZE EFFECTS IN CONFORMAL THEORIES [PDF]

, 1992
А. Миронов, A. Zabrodin
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