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We study the creation of electron-positron pairs in the superposition of a nuclear Coulomb field and a two-color laser field of high intensity. Our focus lies on quantum interference effects, which may arise if the two laser frequencies are…

原子物理 · 物理学 2014-08-29 Sven Augustin , Carsten Müller

Another way to measure electron beam polarization by inverse Compton scattering

仪器与探测器 · 物理学 2018-03-28 Nickolai Muchnoi

In everyday research, it is tacitly assumed that the scattering cross-sections have fixed values for the given particle species, centre-of-mass energy, and particle polarizations. However, this assumption has been called into question after…

高能物理 - 唯象学 · 物理学 2021-03-10 Krzysztof Piotrzkowski , Mariusz Przybycien

A polarity-dependent reversible change in the current-voltage characteristics between states corresponding to different values of the excess current Iexc is observed for bias voltages of several hundred millivolts in YBaCuO-Ag point…

We study the influence of polarization effects in streaking by combined atto- and femtosecond pulses. The polarization-induced terms alter the streaking spectrum. The normal streaking spectrum, which maps to the vector potential of the…

原子物理 · 物理学 2015-05-14 Jan Conrad Baggesen , Lars Bojer Madsen

Measurement of the integrated luminosity at the International Linear Collider (ILC) will be accomplished by counting the rate of small angle Bhabha scattering events. The physics requirements for ILC set the constraint on the relative…

仪器与探测器 · 物理学 2013-01-14 M. Pandurovic , I. Bozovic-Jelisavcic

We discuss electron-electron contact-interaction searches in the process e^+e^- -->e^+e^- at a future e^+e^- Linear Collider with c.m. energy \sqrt{s}=0.5 TeV and with both beams longitudinally polarized. Our analysis is based on the…

高能物理 - 唯象学 · 物理学 2007-05-23 A. Pankov , N. Paver

A day-1 EIC detector should be prepared to carry out inclusive DIS measurements from electron collisions with nucleon and nuclear beams. Here I consider the scientific motivation for spin-dependent DIS measurements from a polarized $^3$He…

核实验 · 物理学 2018-09-18 Richard Milner

We investigate the influence of inhomogeneity in the pairing coupling constant $U(\vec r)$ on dirty BCS superconductors, focusing on $T_c$, the order parameter $\Delta(\vec r)$, and the energy gap $E_g(\vec r)$. Within mean-field theory, we…

超导电性 · 物理学 2008-05-10 Yue Zou , Israel Klich , Gil Refael

It has previously been shown that a dye-filled microcavity can produce a Bose-Einstein condensate of photons. Thermalization of photons is possible via repeated absorption and re-emission by the dye molecules. In this paper, we…

介观与纳米尺度物理 · 物理学 2017-10-18 Ryan I. Moodie , Peter Kirton , Jonathan Keeling

We employ the closed-shell perturbed relativistic coupled-cluster (RCC) theory developed by us earlier [Phys. Rev. A {\bf 77}, 062516 (2008)] to evaluate the ground state static electric dipole polarizabilities (\alpha s) of several atomic…

原子物理 · 物理学 2013-12-09 Yashpal Singh , B. K. Sahoo , B. P. Das

The electroweak production processes of vector bosons, $e^+ e^- \rightarrow Z \gamma$, $\gamma e \rightarrow Ze$, and $\gamma e \rightarrow W \nu$ are considered simultaneousely and in the Standard model the covariant polarization density…

高能物理 - 唯象学 · 物理学 2008-11-26 J. S. Shim , S. W. Baek , H. S. Song

We examine the influence of a static dc electric field on Electromagnetically Induced Transparency (EIT) resonances that involve highly excited Rydberg states. Our focus is on how these resonances are altered when the relative orientation…

The initial modulation in the scheme for Coherent electron Cooling (CeC) rests on the screening of the ion charge by electrons. However, in a CeC system with a bunched electron beam, inevitably, a long-range longitudinal space charge force…

加速器物理 · 物理学 2015-06-19 Gang Wang , Michael Blaskiewicz , V. N. Litvinenko

We explore the effects of correlation on the ground-state energies and on photoionization dynamics in atomic Be and Ne. We apply the time-dependent restricted-active-space self-consistent-field method for several excitation schemes and…

原子物理 · 物理学 2019-03-27 Juan J. Omiste , Lars Bojer Madsen

We examine the potential of polarization bispectra of the cosmic microwave background (CMB) to constrain primordial magnetic fields (PMFs). We compute all possible bispectra between temperature and polarization anisotropies sourced by PMFs…

宇宙学与河外天体物理 · 物理学 2013-11-07 Maresuke Shiraishi

We look at the new two-particle correlation function that can provide the space-time information about the source of two charged pions. This function clearly reflects the chaotic and incoherent nature of the particle emission source…

高能物理 - 唯象学 · 物理学 2010-11-11 G. A. Kozlov

The polarization of radiation by scattering on an atom embedded in combined external quadrupole electric and uniform magnetic fields is studied theoretically. Limiting cases of scattering under Zeeman effect and Hanle effect in weak…

天体物理学 · 物理学 2015-06-24 Yee Yee Oo , M. Sampoorna , K. N. Nagendra , Sharath Ananthamurthy , G. Ramachandran

Ionic solids and melts are compounds in which the interactions are dominated by electrostatic effects. However, the polarization of the ions also plays an important role in many respects as has been clarified in recent years thanks to the…

材料科学 · 物理学 2015-02-27 Mathieu Salanne , Paul A. Madden

In this paper we analyze the impact of the boundary conditions on the solutions of the $\gamma$-structure equations for magnetized Bose-Einstein condensate stars (BECs). We consider two cases: a pure BECs and a BECs embedded in a magnetic…

高能天体物理现象 · 物理学 2020-02-05 Gretel Quintero Angulo , Aurora Pérez Martínez , Hugo Pérez Rojas