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Density modulations on electron beams can improve machine performance of beam-driven accelerators and FELs with resonance beam-wave coupling. The beam modulation is studied with a masked chicane by the analytic model and simulations with…

Accelerator Physics · Physics 2015-11-09 Xiaofang Zhu , Daniel R Broemmelsiek , Young-Min Shin

The high-performance operation of fourth-generation synchrotron light sources critically depends on harmonic cavities (HCs) to alleviate statistical collective effects through bunch lengthening. Active HCs are preferred over passive ones…

Accelerator Physics · Physics 2025-02-11 Tianlong He , Jincheng Xiao , Weiwei Li , Zhenghe Bai , Weimin Li

A few-layer black phosphorene has recently gained significant interest in the scientific community. In this paper, we consider several polymorphs of phosphorene nanoribbons (PNRs) and employ deformation potential theory within the effective…

Materials Science · Physics 2018-02-08 Sumandeep Kaur , Ashok Kumar , Sunita Srivastava , Ravindra Pandey , K. Tankeshwar

We study the stability of p-wave superfluidity against quantum fluctuations in two-dimensional Fermi gases near a p-wave Feshbach resonance . An analysis is carried out in the limit when the interchannel coupling is strong. By investigating…

Quantum Gases · Physics 2018-06-20 Shao-Jian Jiang , Fei Zhou

We discuss terahertz pump-probe experiments in hBN from the perspective of Floquet optical materials and photonic time crystals. Anisotropic nature of this material results in a large separation of frequencies of in-plane and out-of-plane…

We investigate the possibility to control the s-wave scattering length for the interaction between cold bosonic atoms by using a microwave field. Our scheme applies to any atomic species with a ground state that is split by hyperfine…

Quantum Gases · Physics 2010-05-13 D. J. Papoular , G. V. Shlyapnikov , J. Dalibard

Measurements of identified hadrons as a function of the charged-particle multiplicity in pp collisions enable a search for the onset of collective effects in small collision systems. With such measurements, it is possible to study the…

Nuclear Experiment · Physics 2019-11-01 ALICE Collaboration

Fluxon transmission through several impurities of different strength and type (i.e., microshorts and microresistors), placed in a long Josephson junction is investigated. Threshold pinning current on the impurities is computed as a function…

Pattern Formation and Solitons · Physics 2009-11-13 Yaroslav Zolotaryuk

Herein, we present a novel analysis framework for grain size profile of ferroelectric hafnia to tackle critical shortcomings inherent in the current microstructural analysis. We vastly enhanced visibility of grains with ion beam treatment…

With electron beam durations down to femtoseconds and sub-femtoseconds achievable in current state-of-the-art accelerators, longitudinal bunch length diagnostics with resolution at the attosecond level are required. In this paper, we…

We investigated experimentally the short- and long-range correlations in the fluctuations of the resonance frequencies of flat, rectangular microwave cavities that contained antennas acting as point-like perturbations. We demonstrate that…

Chaotic Dynamics · Physics 2016-11-23 Malgorzata Bialous , Vitalii Yunko , Szymon Bauch , Michal Lawniczak , Barbara Dietz , Leszek Sirko

We consider a two-layer Heisenberg antiferromagnet which can be either in the N\'{e}el-ordered or in the disordered phase at $T=0$, depending on the ratio of the intra- and interlayer exchange constants. We reduce the problem to an…

Condensed Matter · Physics 2016-08-31 Andrey V. Chubukov , Dirk K. Morr

We discuss the formation of large amplitude waves for sea states characterized by JONSWAP spectra with random phases. In this context we discuss experimental results performed in one of the largest wave tank facilities in the world. We…

Chaotic Dynamics · Physics 2007-05-23 M. Onorato , A. R. Osborne , M. Serio , L. Cavaleri , C. Brandini , C. T. Stansberg

We present measurement and analyses of longitudinal timing jitter of Beijing Electron Positron Collider (BEPCII) linear accelerator electron gun. We simulated longitudinal jitter effect of the gun using PARMELA about beam performance…

Accelerator Physics · Physics 2015-10-07 Liu Mingshan , Pei Shilun , Munawar Iqbal

The ground state electronic energy of benzene is the focus of a recent blind test by Eriksen and co-workers [arXiv:2008.02678]. In this note, we report the phaseless auxiliary-field quantum Monte Carlo (ph-AFQMC) results on the identical…

Chemical Physics · Physics 2020-09-23 Joonho Lee , Fionn D. Malone , David R. Reichman

We present a theoretical framework for analyzing longitudinal coupled-bunch instabilities in double-rf systems with even filling patterns, accounting for potential-well distortion and multiple azimuthal modes. The linearized Vlasov equation…

Accelerator Physics · Physics 2025-05-01 Murilo B. Alves

We investigate the deformation and failure mechanisms of phosphorene sheet and nanoribbons under uniaxial tensile strain along the zigzag direction using the density functional tight-binding method. Surprisingly, twin-like deformation…

Materials Science · Physics 2017-12-12 V. Sorkin , Y. Q. Cai , D. J. Srolovitz , Y. W. Zhang

We propose to use a higher-frequency RF bunch structure for the primary proton beam on target and precision timing to select different energy and flavor spectra from a wide-band neutrino beam, based on the relative arrival times of the…

Accelerator Physics · Physics 2019-09-04 Evan Angelico , Jonathan Eisch , Andrey Elagin , Henry Frisch , Sergei Nagaitsev , Matthew Wetstein

We previously predicted [P.A. Hervieux et al., Phys. Rev. A \textbf{95}, 020701 (2017)] that owing to predominant electron capture by incoming positrons from the molecular shell, C$_{60}$ acts like a spherical diffractor inducing resonances…

Atomic and Molecular Clusters · Physics 2021-06-08 Paul-Antoine Hervieux , Anzumaan R. Chakraborty , Himadri S. Chakraborty
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