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The studies of the quantum corrections for the anisotropy parameter,$\eta(=\xi_R/\xi_B)$, for the improved actions, $\beta (C_0 L({Plaq.}) + C_1 L({Rect.}))$, are proceeded in the medium to strong coupling region on anisotropic lattices.…

High Energy Physics - Lattice · Physics 2015-06-25 Sunao Sakai , Atsushi Nakamura , Takuya Saito

The dimer-atom-atom recombination process in the system of four identical bosons with resonant interactions is studied. The description uses the exact Alt, Grassberger and Sandhas equations for the four-particle transition operators that…

Atomic Physics · Physics 2015-06-05 A. Deltuva

Stress relaxation following deformation of an entangled polymeric liquid is thought to be affected by transient reforming of chain entanglements. In this work, we use single molecule techniques to study the relaxation of individual polymers…

Soft Condensed Matter · Physics 2018-07-04 Yuecheng Zhou , Charles M. Schroeder

The enhancement factor of the resonant thermonuclear reaction rates is calculated for the extremely dense stellar plasmas in the liquid phase. In order to calculate the enhancement factor we use the screening potential which is deduced from…

Astrophysics · Physics 2008-11-26 Naoki Itoh , Nami Tomizawa , Shinya Wanajo , Satoshi Nozawa

We provide broadband dielectric loss spectra of glass-forming glycerol with varying additions of LiCl. The measurements covering frequencies up to 10 THz extend well into the region of the fast beta process, commonly ascribed to caged…

Soft Condensed Matter · Physics 2013-08-07 M. Köhler , P. Lunkenheimer , Y. Goncharov , A. Loidl

To provide a mechanistic explanation of sustained {then} damped oscillations observed in a depolymerisation experiment, a bi-monomeric variant of the seminal Becker-D\"oring system has been proposed in \cite{DFMR}. When all reaction rates…

Analysis of PDEs · Mathematics 2024-07-08 Marie Doumic , Klemens Fellner , Mathieu Mezache , Juan J L Velázquez

We theoretically study the relaxation of high energy single particle excitations into molecules in a system of attractive fermions in an optical lattice, both in the superfluid and the normal phase. In a system characterized by an…

Quantum Gases · Physics 2013-05-29 Rajdeep Sensarma , David Pekker , Ana Maria Rey , Mikhail Lukin , Eugene Demler

In a system of atoms with large positive scattering length, weakly-bound diatomic molecules (dimers) are generated dynamically by the strong interactions between the atoms. If the atoms are modeled by a quantum field theory with an atom…

Soft Condensed Matter · Physics 2009-11-13 Eric Braaten , Dongqing Zhang

Recently an alpha-cluster model based on the pn-pair interactions with using the isospin invariance of nuclear force has been proposed. According to the model the excess neutron pairs fill out the free space in the core determined by the…

Nuclear Theory · Physics 2007-09-20 G. K. Nie

It is well-known and classical result that spectrally stable traveling waves of a general reaction-diffusion system in one spatial dimension are asymptotically stable with exponential relaxation rates. In a series of works in the 1990's,…

Analysis of PDEs · Mathematics 2020-04-22 Fazel Hadadifard , Atanas G. Stefanov

An elegant and uniform relaxation-rate formula is presented for the entropic lattice Boltzmann method (ELBM). The formula not only guarantees the discrete time H-theorem at numerical level but also gives full consideration to the…

Computational Physics · Physics 2020-01-08 Weifeng Zhao , Wen-An Yong

We study, both experimentally and theoretically, short-time modifications of the decay of excitations in a Bose-Einstein Condensate (BEC) embedded in an optical lattice. Strong enhancement of the decay is observed compared to the Golden…

Other Condensed Matter · Physics 2009-11-13 Nir Bar-Gill , Eitan E. Rowen , Gershon Kurizki , Nir Davidson

A spectroscopic method is applied to measure the inelastic quasi-particle relaxation rate in a disordered Fermi liquid. The quasi-particle relaxation rate, $\gamma$ is deduced from the magnitude of fluctuations in the local density of…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 T. Schmidt , P. König , E. McCann , Vladimir I. Fal'ko , R. J. Haug

We determine the three-body bound states of an atom in a Fermi mixture. Compared to the Efimov spectrum of three atoms in vacuum, we show that the Fermi seas deform the Efimov spectrum systematically. We demonstrate that this effect is more…

Atomic Physics · Physics 2020-08-04 Ali Sanayei , Ludwig Mathey

In systems of ultracold atoms, pairwise interactions can be resonantly enhanced by a new mechanism which does not rely upon a magnetic Feshbach resonance. In this mechanism, interactions are controlled by tuning the frequency of an…

Quantum Gases · Physics 2015-10-14 D. Hudson Smith

Nuclear matrix elements (NMEs) for double and single beta decays are crucial for studying neutrino properties beyond and within the standard model. The NMEs consist mainly of the spin isospin components. The delta isobar resonance, which is…

Nuclear Theory · Physics 2025-09-30 Hiroyasu Ejiri

We discuss the stability of homonuclear and heteronuclear mixtures of 3He and 4He atoms in the metastable 2^3S_1 state (He*) and predict positions and widths of Feshbach resonances by using the Asymptotic Bound-state Model (ABM). All…

Quantum Gases · Physics 2010-10-29 M. R. Goosen , T. G. Tiecke , W. Vassen , S. J. J. M. F. Kokkelmans

The 3-body recombination rate at threshold for distinguishable atoms with large negative pair scattering lengths is calculated in the zero-range approximation. The only parameters in this limit are the 3 scattering lengths and the Efimov…

Other Condensed Matter · Physics 2013-05-29 Eric Braaten , H. -W. Hammer , Daekyoung Kang , Lucas Platter

Based on our experience in kinetic modeling of coupled multiple metabolic pathways we propose a generic rate equation for the dynamical modeling of metabolic kinetics. Its symmetric form makes the kinetic parameters (or functions) easy to…

Molecular Networks · Quantitative Biology 2007-12-18 L. W. Lee , L. Yin , X. M. Zhu , P. Ao

The effect of confinement in the segmental relaxation of polymers is considered. On the basis of a thermodynamic model we discuss the emerging relevance of the fast degrees of freedom in stimulating the much slower segmental relaxation, as…

Soft Condensed Matter · Physics 2015-05-13 Marco Pieruccini , Tiberio A. Ezquerra
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