Results 71 to 80 of about 256,164 (220)

Aspects of nonlinear effect on black hole superradiance

open access: yesJournal of High Energy Physics, 2020
Under some conditions, light boson fields grow exponentially around a rotating black hole, called the superradiance instability. We discuss effects of nonlinear interactions of the boson on the instability.
Hajime Fukuda, Kazunori Nakayama
doaj   +1 more source

The $\pi$ Berry Phase and Topological Excitation in Interacting Boson-Fermion Mixtures

open access: yes, 2015
The topological property of boson-fermion mixture in a one-dimensional optical superlattice is studied and the topological insulating phase of interacting boson-fermion mixture characterized by a nontrivial Berry phase is identified.
Guo, Huaiming
core   +1 more source

Reweighting Scheme for the Calculation of Grand‐Canonical Expectation Values in Quantum Monte Carlo Simulations With a Fermion Sign Problem

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT Ab initio path integral Monte Carlo (PIMC) simulations constitute the gold standard for the estimation of a broad range of equilibrium properties of a host of interacting quantum many‐body systems spanning a broad range of conditions from ultracold atoms to warm dense quantum plasmas.
Paul Hamann   +2 more
wiley   +1 more source

Interpretação e aplicação dos elementos de dosimetria da pena do art. 45 da Lei n° 12.529/11

open access: yesRevista de Defesa da Concorrência, 2020
O presente artigo tem por objetivo verificar a possibilidade de uma interpretação coerente e sistêmica de cada um dos elementos de dosimetria do art. 45 da Lei 12.529/11, e, a partir daí, sugerir uma metodologia para o cálculo das penas aplicadas pelo ...
Daniel Silva Boson
doaj  

The Higgs boson couplings: past, present, and future. The relationships between Higgs boson and other known particles as measured by current and future experiments

open access: yesFrontiers in Physics, 2023
The discovery of the Higgs boson, a fundamental particle of the Standard Model, at the Large Hadron Collider (LHC) in 2012, marked a monumental milestone in the field of particle physics.
Giacomo Ortona
doaj   +1 more source

Stability Bounds for the Generalized Kadanoff‐Baym Ansatz in the Holstein Dimer

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT Predicting real‐time dynamics in correlated systems is demanding: exact two‐time Green's function methods are accurate but often too costly, while the Generalized Kadanoff‐Baym Ansatz (GKBA) offers time‐linear propagation at the risk of uncontrolled behavior. We examine when and why GKBA fails in a minimal yet informative setting, the Holstein
Oscar Moreno Segura   +2 more
wiley   +1 more source

Colored Pseudo Goldstone Bosons and Gauge Boson Pairs [PDF]

open access: yesPhysical Review Letters, 1992
10 pages, 2 figures not ...
Chivukula, R. Sekhar   +2 more
openaire   +3 more sources

An Exactly Solvable Model of Interacting Bosons

open access: yes, 2004
We introduce a class of exactly solvable boson models. We give explicit analytic expressions for energy eigenvalues and eigenvectors for an sd-boson Hamiltonian, which is related to the SO(6) chain of the Interacting Boson Model Hamiltonian.Comment: 8 ...
Balantekin, A. B.   +2 more
core   +2 more sources

Critical Phenomena Associated with Boson Stars [PDF]

open access: yes, 2001
We present a brief synopsis of related work (gr-qc/0007039), describing a study of black hole threshold phenomena for a self-gravitating, massive complex scalar field in spherical symmetry.
Choptuik, Matthew W., Hawley, Scott H.
core   +3 more sources

Loop Quantum Photonic Chip for Coherent Multi‐Time‐Step Evolution

open access: yesLaser &Photonics Reviews, EarlyView.
A loop quantum photonic chip (Loop‐QPC) enabling efficient multi‐step quantum simulation in a single run is demonstrated. Combining recirculating loops with cycle‐or‐measure control, Loop‐QPC eliminates repeated reprogramming and reduces loss. Experimental demonstration of three‐step unitary evolution confirms high‐fidelity operation, showcasing the ...
Yuancheng Zhan   +9 more
wiley   +1 more source

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