Results 61 to 70 of about 855,885 (336)

The Classical Approximation for Real-Time Scalar Field Theory at Finite Temperature [PDF]

, 1998
The use of classical thermal field to approximate real-time quantum thermal field theory is discussed. For a \lambda\phi^4 theory, it is shown that the classical Rayleigh-Jeans divergence can be canceled with the appropriate counterterms, and a ...
Aarts, Gert
core   +1 more source

BCS thermal vacuum of fermionic superfluids and its perturbation theory

, 2018
The thermal field theory is applied to fermionic superfluids by doubling the degrees of freedom of the BCS theory. We construct the two-mode states and the corresponding Bogoliubov transformation to obtain the BCS thermal vacuum.
Chien, Chih-Chun, Guo, Hao, He, Yan, Hou, Xu-Yang, Huang, Ziwen   +4 more
core   +1 more source

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

Advanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund, Arthur Schulz, Peter Lunkenheimer, Maryana Kraft, Thomas Bergler, Harald Oberhofer, Dirk Volkmer   +6 more
wiley   +1 more source

Causal and stable superfluid hydrodynamics

Journal of High Energy Physics
We investigate the linearized stability and causality properties of relativistic viscous superfluid hydrodynamics. The Landau-Lifshitz-Clark-Putterman formulation for the theory of relativistic viscous superfluids suffers from the same instability and ...
Raphael E. Hoult, Ashish Shukla
doaj   +1 more source

On thermalization in classical scalar field theory [PDF]

Nuclear Physics B, 2000
Thermalization of classical fields is investigated in a ^4 scalar field theory in 1+1 dimensions, discretized on a lattice. We numerically integrate the classical equations of motion using initial conditions sampled from various nonequilibrium probability distributions.
Aarts, Gert, Bonini, Gian Franco, Wetterich, Christof   +2 more
openaire   +4 more sources

Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation

Advanced Functional Materials, EarlyView.
A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar, Matthew Large, Andrea Ciavatti, Laura Basiricò, Beatrice Fraboni, Paul J. Sellin, Attila J. Mozer, Marco Petasecca, Matthew J. Griffith   +8 more
wiley   +1 more source

Diffusion coefficient matrix for multiple conserved charges: a Kubo approach

Journal of High Energy Physics
The strongly interacting matter created in relativistic heavy-ion collisions possesses several conserved quantum numbers, such as baryon number, strangeness, and electric charge.
Sourav Dey, Amaresh Jaiswal, Hiranmaya Mishra   +2 more
doaj   +1 more source

Two-loop HTL-resummed thermodynamics for N $$ \mathcal{N} $$ = 4 supersymmetric Yang-Mills theory

Journal of High Energy Physics, 2020
We compute the two-loop hard-thermal-loop (HTL) resummed thermodynamic potential for N $$ \mathcal{N} $$ = 4 supersymmetric Yang-Mills (SYM). Our final result is manifestly gauge-invariant and was renormalized using only simple vacuum energy, gluon mass,
Qianqian Du, Michael Strickland, Ubaid Tantary, Ben-Wei Zhang   +3 more
doaj   +1 more source

Exact equilibrium distributions in statistical quantum field theory with rotation and acceleration: Dirac field

Journal of High Energy Physics, 2021
We derive the general exact forms of the Wigner function, of mean values of conserved currents, of the spin density matrix, of the spin polarization vector and of the distribution function of massless particles for the free Dirac field at global ...
A. Palermo, M. Buzzegoli, F. Becattini
doaj   +1 more source

Hard Thermal Loops in Chiral Perturbation Theory [PDF]

, 1998
It is shown how the hard thermal loop approximation can be used in chiral perturbation theory to study some thermal properties of Goldstone bosons. Hard thermal effects are first studied in the non-linear sigma model.
Manuel, Cristina
core   +1 more source