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Study of high energy cosmic events in the MeV range requires detector with high efficiency and energy resolution to be constructed. The present setup consisting of scintillator crystals CeBr3 with different thickness, each coupled with 12 x…

Instrumentation and Detectors · Physics 2025-12-10 Veronika Asova , Galin Bistrev , Simeon Ivanov

We have created and trapped a pure sample of 87Rb2 Feshbach molecules in a three-dimensional optical lattice. Compared to previous experiments without a lattice we find dramatic improvements such as long lifetimes of up to 700 ms and a near…

Other Condensed Matter · Physics 2007-05-23 Gregor Thalhammer , Klaus Winkler , Florian Lang , Stefan Schmid , Rudolf Grimm , Johannes Hecker Denschlag

We present a light-traces-mass (LTM) strong-lensing model of the massive lensing cluster MACS J2135.2-0102 ($z$=0.33; hereafter MACS2135), known in part for hosting the Cosmic Eye galaxy lens. MACS2135 is also known to multiply-lens a…

Cosmology and Nongalactic Astrophysics · Physics 2017-05-04 Adi Zitrin , Tom Broadhurst

Australia Telescope Compact Array (ATCA) observations in sky regions selected to be low in foreground confusion have been used to infer limits on arcmin-scale CMB anisotropy in total intensity and polarization. These deep searches have,…

Astrophysics · Physics 2007-05-23 Ravi Subrahmanyan

Microlaser with multiple lasing bands is critical in various applications, such as full-colour display, optical communications and computing. Here, we propose a simple and efficient method for homogeneously doping rare earth elements into a…

Optics · Physics 2021-07-20 Bo Jiang , Song Zhu , Linhao Ren , Lei Shi , Xinliang Zhang

I describe a new scheme for selectively isolating high density low longitudinal emittance beam particles in a storage ring from the rest of the beam without emittance dilution. I discuss the general principle of the method, called…

Accelerator Physics · Physics 2009-11-10 C. M. Bhat

We propose a new light source based on having alkaline-earth atoms in an optical lattice collectively emit photons on an ultra-narrow clock transition into the mode of a high Q-resonator. The resultant optical radiation has an extremely…

Quantum Physics · Physics 2015-05-13 D. Meiser , Jun Ye , D. R. Carlson , M. J. Holland

We report a two-dimensional artificial lattice for dipolar excitons confined in a GaAs double quantum well. Exploring the regime of large fillings per lattice site, we verify that the lattice depth competes with the magnitude of excitons…

Mesoscale and Nanoscale Physics · Physics 2021-01-04 Camille Lagoin , Stephan Suffit , Mathieu Bernard , Maxime Vabre , Kenneth West , Kirk Baldwin , Loren Pfeiffer , Francois Dubin

The description is given for the speckle interferometer of the BTA 6-m telescope of the SAO RAS based on a new detector with an electron multiplication CCD. The main components of the instrument are microscope objectives, interference…

Instrumentation and Methods for Astrophysics · Physics 2010-11-02 A. F. Maksimov , Yu. Yu. Balega , V. V. Dyachenko , E. V. Malogolovets , D. A. Rastegaev , E. A. Semernikov

The Continuous Electron Beam Accelerator Facility (CEBAF) at Jefferson Lab is investigating a significant energy upgrade utilizing Fixed-Field Alternating-gradient (FFA) recirculating arcs. This upgrade requires the design of complex…

In this paper we present the physical design of the pulsed sextupole injection system for Beijing Advanced Photon Source (BAPS) with an ultralow emittance. The BAPS ring lattice is designed in such a way that two options of pulsed sextupole…

Accelerator Physics · Physics 2015-10-09 Yi Jiao , Gang Xu

The concept of Dielectric Laser Acceleration (DLA) provides highest gradients among non-plasma particle accelerators. However, stable beam transport and staging have not been shown experimentally yet. We present a scheme that confines the…

Accelerator Physics · Physics 2018-11-28 Uwe Niedermayer , Thilo Egenolf , Oliver Boine-Frankenheim , Peter Hommelhoff

Based on high-throughput density functional theory calculations, we performed screening for stable magnetic MAB compounds and predicted potential strong magnets for permanent magnet and magnetocaloric applications. The thermodynamical,…

This study examines the mechanical behavior of a novel class of mechanical metamaterials alternating pentamode lattices and stiffening plates. The unit cell of such lattices consists of a sub-lattice of the face cubic-centered unit cell…

Applied Physics · Physics 2020-02-04 F. Fraternali , A. Amendola

Almost one and a half centuries ago, Ernst Abbe [1] and shortly after Lord Rayleigh [2] showed that when an optical lens is illuminated by a plane wave, a diffraction-limited spot with a radius 0.61*lambda/sin(alpha) is obtained, where…

Electron storage rings of GeV energy with laser pulse stacking cavities are promising intense sources of polarised hard photons which, via pair production, can be used to generate polarised positron beams. Dynamics of electron bunches…

Accelerator Physics · Physics 2022-07-11 Eugene Bulyak , Louis Rinolfi , Junji Urakawa

We study a lattice bipolaron on a staggered triangular ladder and triangular and hexagonal lattices with both long-range electron-phonon interaction and strong Coulomb repulsion using a novel continuous-time quantum Monte-Carlo (CTQMC)…

Superconductivity · Physics 2009-11-11 J. P. Hague , P. E. Kornilovitch , J. H. Samson , A. S. Alexandrov

We present a multiscale approach for modeling an intermediate-band solar cell based on a GaAs-GaAlAs quantum dot superlattice of cubic symmetry. Our framework combines high-accuracy theoretical calculations of the superlattice band…

Mesoscale and Nanoscale Physics · Physics 2025-11-24 Naira Petrosyan , Lilit Yeganyan , Aram Manaselyan , Vram Mughnetsyan , Vidar Gudmundsson , Albert Kirakosyan

Many present and future accelerators must operate with high intensity beams when distortions induced by space charge forces are among major limiting factors. Betatron tune depression of above approximately 0.1 per cell leads to significant…

Accelerator Physics · Physics 2018-05-09 A. Romanov , A. Valishev , D. L. Bruhwiler , N. Cook , C. Hall

We devise experimental schemes able to mimic uniform and staggered magnetic fluxes acting on ultracold two-electron atoms, such as ytterbium atoms, propagating in a honeycomb lattice. The atoms are first trapped into two independent…

Quantum Gases · Physics 2015-03-19 Agnieszka Górecka , Benoît Grémaud , Christian Miniatura