Efficiency enhancement up to unity in a generalized quantum Otto engine: Comparative analysis with conventional quantum Otto engine utilizing a two-qubit Heisenberg XXZ chain [0.03%]
利用两比特Heisenberg XXZ链增强广义量子奥托发动机的效率（高达单位）：与传统量子奥托发动机的比较分析
Zorar Ahmadi,Bashir Mojaveri
Zorar Ahmadi
This study presents a comparative analysis of three quantum thermal engines utilizing a two-qubit Heisenberg XXZ chain as the working substance. A novel generalized quantum Otto cycle (GQOC) is introduced, featuring two distinct coupling co...
Ashish Bhateja,Devang V Khakhar
Ashish Bhateja
We consider the effects of temperature anisotropy in a quiescent, hard sphere gas, as a model system for flowing granular matter. Utilising kinetic theory we obtain expressions for the streaming pressure, collisional pressure and the rate o...
Gaspar Alfaro,Ruben Capeáns,Miguel A F Sanjuán
Gaspar Alfaro
We present a two-player game in a chaotic dynamical system where players have opposing objectives regarding the system's behavior. The game is analyzed using a methodology from the field of chaos control known as partial control. Our aim is...
Flow regimes and repose angle in a rotating drum filled with highly concave particles [0.03%]
高度凹形颗粒在旋转鼓中的流型和休止角研究
Weiyi Wang,Jonathan Barés,Mathieu Renouf et al.
Weiyi Wang et al.
We present a series of experiments investigating the flow regimes and repose angles of highly concave particle packings in a rotating drum. By varying grain geometry from spherical to highly nonconvex shapes, adjusting frictional properties...
Percolation of systems having hyperuniformity or giant number fluctuations [0.03%]
具有超均匀性或巨数量波动的系统的渗流现象
Sayantan Mitra,Indranil Mukherjee,P K Mohanty
Sayantan Mitra
We generate point configurations (PCs) on a square lattice by thresholding the local energy of the Ashkin-Teller model in two dimensions (2D) and study the percolation transition at different values of λ along the critical Baxter line by v...
Helen S Ansell,Chengling Li,Daniel M Sussman
Helen S Ansell
Observations of glassy dynamics in dense cellular tissues have inspired a wealth of research modeling their collective behavior. Initial studies of the physical properties of several geometric cell models have highlighted anomalous sub-Arrh...
Nonlinear kinetic simulations of Jeans instability in a magnetized dusty plasma [0.03%]
各向异性的磁化尘埃等离子体中Jeans不稳定性非线性动力学模拟研究
Masaru Nakanotani,Luis Lazcano Torres,Gary P Zank et al.
Masaru Nakanotani et al.
The Jeans instability in a magnetized dusty plasma is considered a fundamental process in space, where magnetic fields are common. We investigate the Jeans instability in a magnetized dusty plasma using 1D and 2D particle-in-cell simulation...
Finite-time performance of a cyclic two-dimensional quantum Ising heat engine [0.03%]
二维量子伊辛热机的有限时间性能研究
S P Katoorani,C Kohlfürst,F Queisser et al.
S P Katoorani et al.
We discuss the limit cycle regime of a finite-time quantum Otto cycle with a frictionless two-dimensional anisotropic Ising model as the working fluid. From Onsager's exact equilibrium solution, we first find optimal parameters for the oper...
Amit Dawadi,Animesh Biswas,Julien Chopin et al.
Amit Dawadi et al.
We investigate the formation of helical multifilament bundles and the torque required to achieve them as a function of applied twist. Hyperelastic filaments with circular cross sections are mounted parallel in a uniform circle onto end-clam...
S S Melnyk,O V Usatenko,V A Yampol&#x;skii
S S Melnyk
We study random dichotomous stationary ergodic processes with nonlocal in-time memory. These processes are characterized by a conditional transition probabilities distribution containing an integral term involving the memory function, which...