Results 31 to 40 of about 26,328 (106)

Quantum Jumps in Amplitude Bistability: Tracking a Coherent and Invertible State Localization

open access: yesAnnalen der Physik, Volume 538, Issue 1, January 2026.
A notable asymmetry is shown to characterize the bistable switching between macroscopic metastable states of light in the strong‐coupling limit of radiation–matter interaction. Transitions from the vacuum to a highly excited state correlate with a highly bunched sequence of emitted photons, while a downward switch to the vacuum involves a coherent ...
Th. K. Mavrogordatos
wiley   +1 more source

A priori estimates and large population limits for some nonsymmetric Nash systems with semimonotonicity

open access: yesCommunications on Pure and Applied Mathematics, Volume 79, Issue 1, Page 3-88, January 2026.
Abstract We address the problem of regularity of solutions ui(t,x1,…,xN)$u^i(t, x^1, \ldots, x^N)$ to a family of semilinear parabolic systems of N$N$ equations, which describe closed‐loop equilibria of some N$N$‐player differential games with Lagrangian having quadratic behaviour in the velocity variable, running costs fi(x)$f^i(x)$ and final costs gi(
Marco Cirant, Davide Francesco Redaelli
wiley   +1 more source

Entorhinal Silencing Reveals Energy Cascade Organization of Hippocampal Oscillations

open access: yesHippocampus, Volume 36, Issue 1, January 2026.
ABSTRACT Hippocampal theta and gamma rhythms are often viewed as discrete channels supporting distinct cognitive operations. In particular, “gamma multiplexing” models propose that slow and fast gamma bands independently encode separate information streams or memory processes.
Ben Zhao   +3 more
wiley   +1 more source

Ergodic Properties of the Spin - Boson System

open access: yes, 1995
We investigate the dynamics of a 2-level atom (or spin-1/2) coupled to a mass-less bosonic field at positive temperature. We prove that, at small coupling, the combined quantum system approaches thermal equilibrium.
Jaksic, V., Pillet, C. -A.
core   +1 more source

On ergodic states, spontaneous symmetry breaking and the Bogoliubov quasi-averages

open access: yes, 2016
It is shown that Bogoliubov quasi-averages select the pure or ergodic states in the ergodic decomposition of the thermal (Gibbs) state. Our examples include quantum spin systems and many-body boson systems.
Wreszinski, Walter F.   +1 more
core   +1 more source

From linear to metric functional analysis. [PDF]

open access: yesProc Natl Acad Sci U S A, 2021
Karlsson A.
europepmc   +1 more source

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