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The conventional view of stellar-mass binary black hole (sBBH) mergers is that there should not be enough matter present to produce a detectable electromagnetic transient. However, there ARE a number of mechanisms for producing such a…

High Energy Astrophysical Phenomena · Physics 2019-03-28 K. E. Saavik Ford , Federico Fraschetti , Chris Fryer , Steven L. Liebling , Rosalba Perna , Peter Shawhan , Péter Veres , Bing Zhang

This publication focuses on the study of silicon photomultipliers (SiPMs) in view of a reconstruction of the incident photon flux in the regime of highly non-linear response. SiPMs are semiconductor based light detectors compiled of…

Instrumentation and Detectors · Physics 2020-10-29 T. Bretz , T. Hebbeker , J. Kemp

Coherent light sources, such as free electron lasers, provide bright beams for biology, chemistry, physics, and advanced technological applications. Increasing the brightness of these sources requires progressively larger devices, with the…

This review reports on the science performed in various fields at the Munich tandem accelerator during the past decade. It covers nuclear structure studies, also with respect to astro- and particle physics as well as for the understanding…

Nuclear Experiment · Physics 2018-04-12 Günther Dollinger , Thomas Faestermann

The coherent synchrotron radiation (CSR) of a high brightness electron beam traversing a series of dipoles, such as transport or recirculation arcs, may result in the microbunching instability ({\mu}BI). To accurately quantify the direct…

Accelerator Physics · Physics 2015-05-08 Cheng-Ying Tsai , David Douglas , Rui Li , Chris Tennant

Abridged: Supermassive black hole binaries (SMBHBs) separated by (sub)-pc scales represent one of the latest stages of hierarchical galaxy assembly. However, many of these objects are hidden behind large columns of gas and dust at the…

Beam quality preservation during transport of high-brightness electron beams is of general concern in the design of modern accelerators. Methods to manage incoherent synchrotron radiation (ISR) have been in place for decades; as beam…

Accelerator Physics · Physics 2014-03-11 D. R. Douglas , S. V. Benson , A. Hutton , G. A. Krafft , R. Li , G. R. Neil , Y. Roblin , C. D. Tennant , C. -Y. Tsai

We demonstrate a novel way to efficiently and very robust create an entanglement between an atomic and a photonic qubit. A single laser beam is used to excite one atomic ensemble and two different spatial modes of scattered Raman fields are…

Quantum Physics · Physics 2007-11-20 Shuai Chen , Yu-Ao Chen , Bo Zhao , Zhen-Sheng Yuan , Joerg Schmiedmayer , Jian-Wei Pan

Biphoton sources that use room-temperature or hot atoms are valuable for real-world applications in long-distance quantum communication and photonic quantum computation. The heralded single photons produced by biphoton sources using the…

Quantum Physics · Physics 2025-09-15 Wei-Kai Huang , Tse-Yu Lin , Pei-Yu Tu , Yong-Fan Chen , Ite A. Yu

A muon collider would be a powerful tool for exploring the energy-frontier with leptons, and would complement the studies now under way at the LHC. Such a device would offer several important benefits. Muons, like electrons, are point…

Accelerator Physics · Physics 2011-09-15 Michael S. Zisman

A storage ring-based light source, Beijing Advanced Photon Source (BAPS) is proposed to store 5-GeV low-emittance electron beam and to provide high-brilliance coherent radiation. In this paper, we report our efforts of pushing down the…

Accelerator Physics · Physics 2015-10-15 Xu Gang , Jiao Yi

We outline the fundamental coherent radiation emission processes from a bunched charged particles beam. In contrast to spontaneous emission of radiation from a random electron beam that is proportional to the number of particles, a…

We investigate the scattered field from $N$ identical two-level atoms resonantly driven by a weak coherent field in a one-dimensional waveguide. For atoms separated by the drive wavelength, increasing the number of atoms progressively…

Quantum Physics · Physics 2025-06-06 Zeidan Zeidan , Therese Karmstrand , Maryam Khanahmadi , Göran Johansson

In this Letter, we report on the concept and analysis of a low-emittance electron storage ring, in which the electron beams undergo an early-stage self-amplified spontaneous emission lasing process on a turn-by-turn basis. The lasing…

Accelerator Physics · Physics 2023-09-06 Kaishang Zhou , Renkai Li , Zhenghe Bai

This is the second in a series of papers reporting on a large reverberation mapping (RM) campaign to measure black hole (BH) mass in high accretion rate active galactic nuclei (AGNs). The goal is to identify super-Eddington accreting…

High Energy Astrophysical Phenomena · Physics 2015-06-22 Jian-Min Wang , Pu Du , Chen Hu , Hagai Netzer , Jin-Ming Bai , Kai-Xing Lu , Shai Kaspi , Jie Qiu , Yan-Rong Li , Fang Wang

Multi-photon entangled states of light are key to advancing quantum communication, computation, and metrology. Current methods for building such states are based on stitching together photons from probabilistic sources. The probability of…

This paper presents expected THz radiation spectra emitted by micro-bunched electron beams produced using a slit-mask placed within a magnetic chicane in the FAST (Fermilab Accelerator Science and Technology) electron injector at Fermilab.…

Accelerator Physics · Physics 2018-12-26 J. Hyun , P. Piot , T. Sen , J. C. Thangaraj

Stroemgren defined a model made up of an extremely hot source plunged in a constant density, huge, static cloud of low pressure hydrogen. The present studies of this model apply qualitatively with relatively small and cold sources, but…

General Physics · Physics 2009-05-29 Jacques Moret-Bailly

A novel concept of a high luminosity hadron collider is proposed. This would be a typical application of an induction synchrotron being newly developed. Extremely long bunches, referred to as superbunches, are generated by a multi- bunch…

High Energy Physics - Experiment · Physics 2009-11-07 Ken Takayama , Junichi Kishiro , Makoto Sakuda , Masayoshi Wake