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The density profile of a hot nuclear system produced in intermediate energy heavy ion collisions is studied in a microcanonical formulation with a momentum and density dependent finite range interaction. The caloric curve and the density…

核理论 · 物理学 2008-11-26 S. K. Samaddar , J. N. De , X. Vinas , M. Centelles

The mass and total kinetic energy distributions of the fission fragments in the fission of even-even isotopes of superheavy elements from Hs (Z=108) to Og (Z=118) are estimated using a pre-scission point model. We restrict to nuclei for…

核理论 · 物理学 2019-06-19 N. Carjan , F. A. Ivanyuk , Yu. Ts. Oganessian

We study the contribution of electron-atom interaction to the equation of state for partially ionized hydrogen plasma using the cluster-virial expansion. For the first time, we use the Beth-Uhlenbeck approach to calculate the second virial…

等离子体物理 · 物理学 2015-05-18 Yultuz A. Omarbakiyeva , Carsten Fortmann , T. S. Ramazanov , Gerd Röpke

During the fission process, the nucleus deforms and elongates up to the two fragments inception and their final separation at scission deformation. The evolution of the nucleus energy with deformation is determined by the macroscopic…

Recently a number of approaches has been developed to connect the microscopic dynamics of particle systems to the macroscopic properties of systems in nonequilibrium stationary states, via the theory of dynamical systems. This way a direct…

统计力学 · 物理学 2009-10-31 L. Rondoni , E. G. D. Cohen

Nuclear formation cross sections are reported for 26 radionuclides, measured with 40 to 200 MeV proton irradiations of terbium foils. These data are relevant to the production of medically relevant radionuclides (e.g., 152Tb, 155Tb, 155Eu,…

Informational contributions to thermodynamics can be studied in isolation by considering systems with fully-degenerate Hamiltonians. In this regime, being in non-equilibrium -- termed informational non-equilibrium -- provides thermodynamic…

量子物理 · 物理学 2025-05-15 Chung-Yun Hsieh , Benjamin Stratton , Hao-Cheng Weng , Valerio Scarani

The approach of nonequilibrium evolution thermodynamics earlier offered is developed. It helps to describe the processes of defect formation within the adiabatic approximation. The basic equations system depends on the initial defects…

材料科学 · 物理学 2015-10-23 A. V. Khomenko , D. S. Troshchenko , L. S. Metlov

We establish the exponential clustering of correlation functions for the high-temperature Gibbs states of Bose-Hubbard type models. To overcome the technical difficulties arising from the unboundedness of bosonic operators, we develop the…

统计力学 · 物理学 2026-03-31 Xin-Hai Tong , Tomotaka Kuwahara , Zongping Gong

The pair cluster (dimer) is studied within the framework of the extended Hubbard model and the grand canonical ensemble. The elastic interatomic interactions and thermal vibrational energy of the atoms are taken into account. The total…

统计力学 · 物理学 2019-06-21 T. Balcerzak , K. Szałowski

The role of dynamical pairing in induced fission dynamics is investigated using the time-dependent generator coordinate method in the Gaussian overlap approximation, based on the microscopic framework of nuclear energy density functionals.…

核理论 · 物理学 2021-10-27 Jie Zhao , Tamara Nikšić , Dario Vretenar

Fission-fragment mass distributions are asymmetric in fission of typical actinide nuclei for nucleon number $A$ in the range $228 \lnsim A \lnsim 258$ and proton number $Z$ in the range $90\lnsim Z \lnsim 100$. For somewhat lighter systems…

核理论 · 物理学 2015-06-04 Takatoshi Ichikawa , Akira Iwamoto , Peter Möller , Arnold J. Sierk

Nuclear stellar cusps are defined as central excess light component in the stellar light profiles of galaxies and are suggested to be stellar relics of intense compact starbursts in the central ~100-500 pc region of gas-rich major mergers.…

We study the formation and growth of equilibrium clusters in a suspension of weakly-charged colloidal particles and small non-adsorbing polymers. The effective potential is characterised by a short-range attraction and a long-range…

软凝聚态物质 · 物理学 2009-11-11 Rodrigo Sanchez , Paul Bartlett

Non-equilibrium charge dynamics, such as cooling-rate-dependent charge vitrification and physical aging, have been demonstrated for a charge-cluster glass in $\theta$-(BEDT-TTF)$_2$CsZn(SCN)$_4$ using electron transport measurements. The…

强关联电子 · 物理学 2014-03-17 T. Sato , F. Kagawa , K. Kobayashi , K. Miyagawa , K. Kanoda , R. Kumai , Y. Murakami , Y. Tokura

We present our first attempts to formulate a thermodynamics-like description of explosions. The motivation is partly a fundamental interest in non-equilibrium statistical physics, partly the resemblance of an explosion to the late stages of…

核理论 · 物理学 2017-08-23 Gregers Neergaard , Jakob P. Bondorf , Igor N. Mishustin

The time evolution and spatial correlations of nonaffine displacements in deformed amorphous solids are investigated using molecular dynamics simulations. The three-dimensional model glass is represented via the binary mixture, which is…

软凝聚态物质 · 物理学 2020-06-04 Nikolai V. Priezjev

We investigate the open dynamics of a chain of interacting spins using the quantized version of the GENERIC equation from classical out-of-equilibrium thermodynamics. We focus on both equilibrium and nonequilibrium scenarios for chains of…

统计力学 · 物理学 2022-09-30 Massimo Borrelli , Hans Christian Öttinger

The coupled cluster iteration scheme is analysed as a multivariate discrete-time map using nonlinear dynamics and synergetics. The nonlinearly coupled set of equations to determine the cluster amplitudes are driven by a fraction of the…

计算物理 · 物理学 2021-10-13 Valay Agarawal , Chayan Patra , Rahul Maitra

The gravitational clustering of collisionless particles in an expanding universe is modelled using some simple physical ideas. I show that it is indeed possible to understand the nonlinear clustering in terms of three well defined regimes:…

天体物理学 · 物理学 2016-06-08 T. Padmanabhan
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