Acta Physica Polonica B最新文献_第9页

Goldstone Boson Decays and Chiral Anomalies 戈德斯通玻色子衰变与手性异常

IF 0.5 4区物理与天体物理

Acta Physica Polonica B Pub Date : 2021-05-11 DOI: 10.5506/APhysPolB.52.651

S. Pokorski, K. Sakurai

引用次数: 1

Quantum Baryon Number Fluctuations in Subsystems of a Hot and Dense Relativistic Gas of Fermions 热密相对论性费米子气体子系统中的量子重子数涨落

IF 0.5 4区物理与天体物理

Acta Physica Polonica B Pub Date : 2021-05-04 DOI: 10.5506/APhysPolB.53.7-A5

Arpan Das, W. Florkowski, R. Ryblewski, Rajeev Singh

引用次数: 4

From Elastic Scattering to Central Exclusive Production: Physics with Forward Protons at RHIC 从弹性散射到中心排他性产生：RHIC的前向质子物理学

IF 0.5 4区物理与天体物理

Acta Physica Polonica B Pub Date : 2021-04-30 DOI: 10.5506/APhysPolB.52.217

W. Guryn

引用次数: 2

Veltman, Renormalizability, Calculability 维尔特曼，重整化，可计算性

IF 0.5 4区物理与天体物理

Acta Physica Polonica B Pub Date : 2021-04-28 DOI: 10.5506/APhysPolB.52.533

G. Passarino

引用次数: 3

Superharmonic Double-well Systems with Zero-energy Ground States: Relevance for Diffusive Relaxation Scenarios 零能量基态的超谐双阱系统：与扩散弛豫情形的相关性

IF 0.5 4区物理与天体物理

Acta Physica Polonica B Pub Date : 2021-04-24 DOI: 10.5506/APhysPolB.53.3-A2

P. Garbaczewski, V. Stephanovich

{"title":"Superharmonic Double-well Systems with Zero-energy Ground States: Relevance for Diffusive Relaxation Scenarios","authors":"P. Garbaczewski, V. Stephanovich","doi":"10.5506/APhysPolB.53.3-A2","DOIUrl":"https://doi.org/10.5506/APhysPolB.53.3-A2","url":null,"abstract":"Relaxation properties (specifically time-rates) of the Smoluchowski diffusion process on a line, in a confining potential U(x) ∼ x, m = 2n ≥ 2, can be spectrally quantified by means of the affiliated Schrödinger semigroup exp(−tĤ), t ≥ 0. The inferred (dimensionally rescaled) motion generator Ĥ = −∆ + V(x) involves a potential function V(x) = ax − bx, a = a(m), b = b(m) > 0, which for m > 2 has a conspicuous higher degree (superharmonic) double-well form. For each value of m > 2, Ĥ has the zero-energy ground state eigenfunction ρ 1/2 ∗ (x), where ρ∗(x) ∼ exp−[U(x)] stands for the Boltzmann equilibrium pdf of the diffusion process. A peculiarity of Ĥ is that it refers to a family of quasi-exactly solvable Schrödinger-type systems, whose spectral data are either residual or analytically unavailable. As well, no numerically assisted procedures have been developed to this end. Except for the ground state zero eigenvalue and incidental trial-error outcomes, lowest positive energy levels (and energy gaps) of Ĥ are unknown. To overcome this obstacle, we develop a computer-assisted procedure to recover an approximate spectral solution of Ĥ for m > 2. This task is accomplished for the relaxation-relevant low part of the spectrum. By admitting larger values of m (up tom = 104), we examine the spectral ”closeness” of Ĥ , m ≫ 2 on R and the Neumann Laplacian ∆N in the interval [−1, 1], known to generate the Brownian motion with two-sided reflection.","PeriodicalId":7060,"journal":{"name":"Acta Physica Polonica B","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2021-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47144650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Continuum Linear Dilaton 连续体线性扩张

IF 0.5 4区物理与天体物理

Acta Physica Polonica B Pub Date : 2021-04-20 DOI: 10.5506/APhysPolB.52.711

E. Megías, M. Quirós

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引用次数: 7

Searching for New Physics with (bar {mathcal {B}}(B_{s,d}to mu bar mu )/Delta M_{s,d}) 寻找新的物理 (bar {mathcal {B}}(B_{s,d}to mu bar mu )/Delta M_{s,d})

IF 0.5 4区物理与天体物理

Acta Physica Polonica B Pub Date : 2021-04-19 DOI: 10.5506/APhysPolB.52.1189

C. Bobeth, A. Buras

引用次数: 1

Conformal Transformations of Conservation Equations in Spin Hydrodynamics 自旋流体力学中守恒方程的保角变换

IF 0.5 4区物理与天体物理

Acta Physica Polonica B Pub Date : 2021-03-31 DOI: 10.5506/APhysPolB.52.1081

Rajeev Singh

引用次数: 1

Extended Scalar Sectors at Future Colliders 未来对撞机的扩展标量扇区