Matches in SemOpenAlex for { <https://semopenalex.org/work/W2883802380> ?p ?o ?g. }
- W2883802380 abstract "Nonthermal fixed points in the evolution of a quantum many-body system quenched far out of equilibrium manifest themselves in a scaling evolution of correlations in space and time. We develop a low-energy effective theory of nonthermal fixed points in a bosonic quantum many-body system by integrating out long-wavelength density fluctuations. The system consists of $N$ distinguishable spatially uniform Bose gases with $text{U}(N)$-symmetric interactions. The effective theory describes interacting Goldstone modes of the total and relative-phase excitations. It is similar in character to the nonlinear Luttinger-liquid description of low-energy phonons in a single dilute Bose gas, with the markable difference of a universal nonlocal coupling function depending, in the large-$N$ limit, only on momentum, single-particle mass, and density of the gas. Our theory provides a perturbative description of the nonthermal fixed point, technically easy to apply to experimentally relevant cases with a small number of fields $N$. Numerical results for $N=3$ allow us to characterize the analytical form of the scaling function and confirm the analytically predicted scaling exponents. The predicted and observed exponentially suppressed coherence at short distances takes the form of that of a quasicondensate in low-dimensional equilibrium systems. The fixed point which is dominated by the relative phases is found to be Gaussian, while a non-Gaussian fixed point is anticipated to require scaling evolution with a distinctly lower power of time." @default.
- W2883802380 created "2018-08-03" @default.
- W2883802380 creator A5022558870 @default.
- W2883802380 creator A5036596992 @default.
- W2883802380 creator A5087459232 @default.
- W2883802380 date "2019-06-24" @default.
- W2883802380 modified "2023-09-29" @default.
- W2883802380 title "Low-energy effective theory of nonthermal fixed points in a multicomponent Bose gas" @default.
- W2883802380 cites W111007863 @default.
- W2883802380 cites W1496493035 @default.
- W2883802380 cites W1573057573 @default.
- W2883802380 cites W1929234096 @default.
- W2883802380 cites W1965427933 @default.
- W2883802380 cites W1966812401 @default.
- W2883802380 cites W1969730590 @default.
- W2883802380 cites W1969854991 @default.
- W2883802380 cites W1971609182 @default.
- W2883802380 cites W1984903703 @default.
- W2883802380 cites W1987748420 @default.
- W2883802380 cites W1990618740 @default.
- W2883802380 cites W1991754145 @default.
- W2883802380 cites W1992895152 @default.
- W2883802380 cites W1993283194 @default.
- W2883802380 cites W1999248319 @default.
- W2883802380 cites W1999694566 @default.
- W2883802380 cites W2000917236 @default.
- W2883802380 cites W2005935750 @default.
- W2883802380 cites W2020306044 @default.
- W2883802380 cites W2024329825 @default.
- W2883802380 cites W2026220586 @default.
- W2883802380 cites W2030759486 @default.
- W2883802380 cites W2032558547 @default.
- W2883802380 cites W2034703076 @default.
- W2883802380 cites W2039335038 @default.
- W2883802380 cites W2043741611 @default.
- W2883802380 cites W2047208312 @default.
- W2883802380 cites W2048216412 @default.
- W2883802380 cites W2049071211 @default.
- W2883802380 cites W2050228247 @default.
- W2883802380 cites W2053906556 @default.
- W2883802380 cites W2054418043 @default.
- W2883802380 cites W2057535394 @default.
- W2883802380 cites W2057565972 @default.
- W2883802380 cites W2058424995 @default.
- W2883802380 cites W2059074065 @default.
- W2883802380 cites W2066359652 @default.
- W2883802380 cites W2067996845 @default.
- W2883802380 cites W2074755585 @default.
- W2883802380 cites W2078251879 @default.
- W2883802380 cites W2081173150 @default.
- W2883802380 cites W2097375136 @default.
- W2883802380 cites W2098821431 @default.
- W2883802380 cites W2104281360 @default.
- W2883802380 cites W2110023503 @default.
- W2883802380 cites W2116066080 @default.
- W2883802380 cites W2142336762 @default.
- W2883802380 cites W2150493876 @default.
- W2883802380 cites W2151129471 @default.
- W2883802380 cites W2153894835 @default.
- W2883802380 cites W2162920910 @default.
- W2883802380 cites W2214923827 @default.
- W2883802380 cites W2223356088 @default.
- W2883802380 cites W2245215031 @default.
- W2883802380 cites W2258313315 @default.
- W2883802380 cites W2261918324 @default.
- W2883802380 cites W2273546554 @default.
- W2883802380 cites W2335904277 @default.
- W2883802380 cites W2385935711 @default.
- W2883802380 cites W2410510134 @default.
- W2883802380 cites W2465931448 @default.
- W2883802380 cites W2496369024 @default.
- W2883802380 cites W2507759049 @default.
- W2883802380 cites W2551106719 @default.
- W2883802380 cites W2558584720 @default.
- W2883802380 cites W2560574198 @default.
- W2883802380 cites W2565882177 @default.
- W2883802380 cites W2598978529 @default.
- W2883802380 cites W2618967021 @default.
- W2883802380 cites W2766570880 @default.
- W2883802380 cites W2786242707 @default.
- W2883802380 cites W2805694405 @default.
- W2883802380 cites W2883184709 @default.
- W2883802380 cites W2898233519 @default.
- W2883802380 cites W2899490680 @default.
- W2883802380 cites W2904269485 @default.
- W2883802380 cites W2951079783 @default.
- W2883802380 cites W2964305496 @default.
- W2883802380 cites W2995741761 @default.
- W2883802380 cites W3037232317 @default.
- W2883802380 cites W3098407513 @default.
- W2883802380 cites W3100303240 @default.
- W2883802380 cites W3101257239 @default.
- W2883802380 cites W3101414779 @default.
- W2883802380 cites W3101435882 @default.
- W2883802380 cites W3103383561 @default.
- W2883802380 cites W3104790781 @default.
- W2883802380 cites W3105840110 @default.
- W2883802380 cites W3105903783 @default.
- W2883802380 cites W3123968050 @default.
- W2883802380 cites W4233847914 @default.