Results 61 to 70 of about 357,046 (309)

Mean-field theory and fluctuation spectrum of a pumped decaying Bose-Fermi system across the quantum condensation transition [PDF]

, 2006
We study the mean-field theory, and the properties of fluctuations, in an out of equilibrium Bose-Fermi system, across the transition to a quantum condensed phase.
M. Szymańska, Jonathan Keeling, P. Littlewood   +2 more
semanticscholar   +1 more source

Quantum global vortex strings in a background field

, 2006
We consider quantum global vortex string correlation functions, within the Kalb-Ramond framework, in the presence of a background field-strength tensor and investigate the conditions under which this yields a nontrivial contribution to those correlation ...
Barenghi C F, Donnelly R J, E C Marino, Fort H, Gross E P, Marino E C Baeriswyl D Bishop A Carmelo J, Pitaevskii L P, Pitaevskii L P, Rasetti M   +8 more
core   +1 more source

One-loop corrections to the primordial tensor spectrum from massless isocurvature fields

Journal of High Energy Physics, 2020
We study one-loop corrections to the two-point correlation function of tensor perturbations in primordial cosmology induced by massless spectator matter fields.
Hai Siong Tan
doaj   +1 more source

Towards the non-perturbative cosmological bootstrap

Journal of High Energy Physics, 2023
We study quantum field theory on a de Sitter spacetime dS d+1 background. Our main tool is the Hilbert space decomposition in irreducible unitary representations of its isometry group SO(d + 1, 1). As the first application of the Hilbert space formalism,
Matthijs Hogervorst, Joao Penedones, Kamran Salehi Vaziri   +2 more
doaj   +1 more source

4d index to 3d index and 2d topological quantum field theory

, 2012
We compute the 4d superconformal index for N=1,2 gauge theories on S^1 x L(p,1), where L(p,1) is a lens space. We find that the 4d N=1,2 index on S^1 x L(p,1) reduces to a 3d N=2,4 index on S^1 x S^2 in the large p limit, and to a 3d partition function ...
F. Benini, T. Nishioka, M. Yamazaki
semanticscholar   +1 more source

Finite-temperature correlation function for the one-dimensional quantum ising model : The virial expansion [PDF]

, 2006
We rewrite the exact expression for the finite temperature two-point correlation function for the magnetization as a partition function of some field theory.
S. A. Reyes, A. Tsvelik
semanticscholar   +1 more source

Effective Field Theory for Highly Ionized Plasmas

, 2000
We examine the equilibrium properties of hot, dilute, non-relativistic plasmas. The partition function and density correlation functions of a classical plasma with several species are expressed in terms of a functional integral over electrostatic ...
Alastuey, Alastuey, Alastuey, Broadhurst, Brown, Brydges, Cornu, DeWitt, DeWitt, Ebeling, Fetter, Georgi, Hansen, Huang, Hubbard, Kahlbaum, Kraeft, Kraeft, Laurence G. Yaffe, Lowell S. Brown, Martin, Negle, Opher, Ortner, Peskin, Polchinski, Riemann, Samuel, Stratonovitch, Whittaker   +29 more
core   +1 more source

Consolidate Overview of Ribonucleic Acid Molecular Dynamics: From Molecular Movements to Material Innovations

Advanced Engineering Materials, EarlyView.
Molecular dynamics simulations are advancing the study of ribonucleic acid (RNA) and RNA‐conjugated molecules. These developments include improvements in force fields, long‐timescale dynamics, and coarse‐grained models, addressing limitations and refining methods.
Kanchan Yadav, Iksoo Jang, Jong Bum Lee
wiley   +1 more source

A differential representation of cosmological wavefunctions

Journal of High Energy Physics, 2022
Our understanding of quantum field theory rests largely on explicit and controlled calculations in perturbation theory. Because of this, much recent effort has been devoted to improve our grasp of perturbative techniques on cosmological spacetimes. While
Aaron Hillman, Enrico Pajer
doaj   +1 more source

Quantized Skyrmion Fields in 2+1 Dimensions

, 1999
A fully quantized field theory is developped for the skyrmion topological excitations of the O(3) symmetric CP$^1$-Nonlinear Sigma Model in 2+1D. The method allows for the obtainment of arbitrary correlation functions of quantum skyrmion fields.
A. Coste, A. Schmeller, A.A. Belavin, A.M. Polyakov, A.P. Kampf, B.I. Schraiman, B.I. Schraiman, D.G. Barci, D.H. Lee, E. C. Marino, E. Dagotto, E. Manousakis, E.C. Marino, E.C. Marino, E.C. Marino, E.C. Marino, E.C. Marino, E.C. Marino, E.C. Marino, E.H. Aifer, F. Wilczek, F.D.M. Haldane, F.D.M. Haldane, J.P. Rodriguez, J.P. Rodriguez, K. Furuya, N. Read, P.B. Wiegmann, R. Rajaraman, R.J. Gooding, R.J. Gooding, S. Haas, S.C. Zhang, S.E. Barnett, S.L. Sondhi   +34 more
core   +1 more source