Results 11 to 20 of about 25,826 (252)
Correlation Functions in 2-Dimensional Integrable Quantum Field Theories [PDF]
, 1993 In this talk I discuss the form factor approach used to compute correlation functions of integrable models in two dimensions. The Sinh-Gordon model is our basic example. Using Watson's and the recursive equations satisfied by matrix elements of local operators, I present the computation of the form factors of the elementary field $ (x)$ and the stress-
Giuseppe Mussardo
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On multipoint correlation functions in the Sinh-Gordon 1+1 dimensional quantum field theory [PDF]
This work provides a closed, explicit and rigorous expression for the appropriately truncated $k$-point function of the integrable 1+1 dimensional Sinh-Gordon quantum field theory. The results are obtained within the bootstrap program setting.
Karol K. Kozłowski, Alex Simon
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Quantum-field-theory calculation of the two-dimensional Ising model correlation function [PDF]
Physical Review D, 1977 The equivalence between the two-dimensional Ising model and a free fermion field theory is used to rederive various results for the two-spin correlation function in the critical region.
Myron Bander, C. Itzykson
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Cavity-mediated charge and pair-density waves in a unitary Fermi gas [PDF]
Nature CommunicationsCoherent light-matter interactions between a quantum gas and light in a high-finesse cavity can drive self-ordering phase transitions. To date, such phenomena have involved exclusively single-atom coupling to light, resulting in coupled charge-density or
Timo Zwettler +9 more
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Exchange-correlation orbital functionals in current-density functional theory: Application to a quantum dot in magnetic fields [PDF]
Physical Review B, 2008 The description of interacting many-electron systems in external magnetic fields is considered in the framework of the optimized effective potential method extended to current-spin-density functional theory. As a case study, a two-dimensional quantum dot in external magnetic fields is investigated.
Helbig, N. +4 more
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String Theory Explanation of Large-Scale Anisotropy and Anomalous Alignment [PDF]
Reports in Advances of Physical Sciences, 2018 The discovery of anomalies in the cosmic microwave background (CMB) indicates large-scale anisotropies, non-Gaussian distributions, and anomalous alignments of the quadrupole and octupole modes of the anisotropy with each other and with both the ecliptic
Zhi Gang Sha, Rulin Xiu
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The quantum sine-Gordon model with quantum circuits
Nuclear Physics B, 2021 Analog quantum simulation has the potential to be an indispensable technique in the investigation of complex quantum systems. In this work, we numerically investigate a one-dimensional, faithful, analog, quantum electronic circuit simulator built out of ...
Ananda Roy +4 more
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NON RELATIVISTIC QUANTUM FIELD THEORY: DYNAMICS AND IRREVERSIBILITY
Anales (Asociación Física Argentina), 2022 We study aspects of quantum field theory at finite density using techniques and concepts from quantum information theory. We focus on massive Dirac fermions with chemical potential in 1+1 space-time dimensions.
L. Daguerre +3 more
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Universe, 2020 In this work, we study the impact of quantum entanglement on the two-point correlation function and the associated primordial power spectrum of mean square vacuum fluctuation in a bipartite quantum field theoretic system.
Sayantan Choudhury, Sudhakar Panda
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Hybrid quantum-classical algorithm for computing imaginary-time correlation functions
Physical Review Research, 2022 Quantitative descriptions of strongly correlated materials pose a considerable challenge in condensed matter physics and chemistry. A promising approach to address this problem is quantum embedding methods. In particular, the dynamical mean-field theory (
Rihito Sakurai +2 more
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