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Modulation of probe signal in pump-probe measurements of coherent phonons in dielectrics, with and without spectral resolution, are investigated theoretically taking diamond as an example. Analytical investigation as well as…

Optics · Physics 2020-07-08 Atsushi Yamada , Kazuhiro Yabana

We demonstrate how supercell implementations of conventional lattice dynamical calculations can be used to determine the extent and nature of disorder-induced broadening in the phonon dispersion spectrum of disordered crystalline materials.…

Disordered Systems and Neural Networks · Physics 2017-04-26 Alistair R. Overy , Arkadiy Simonov , Philip A. Chater , Matthew G. Tucker , Andrew L. Goodwin

Using improved Ge and Si detectors, better neutron shielding, and increased counting time, the Cryogenic Dark Matter Search (CDMS) experiment has obtained stricter limits on the cross section of weakly interacting massive particles (WIMPs)…

High Energy Physics - Experiment · Physics 2012-08-27 CDMS Collaboration

Generation of non-Gaussian quantum states of macroscopic mechanical objects is key to a number of challenges in quantum information science, ranging from fundamental tests of decoherence to quantum communication and sensing. Heralded…

Quantum Physics · Physics 2020-06-18 Ivan Galinskiy , Yeghishe Tsaturyan , Michał Parniak , Eugene S. Polzik

Dark matter is poorly constrained by direct detection experiments at masses below 1 MeV. This is an important target for the next generation of experiments, and several methods have been proposed to probe this mass range. One class of such…

High Energy Physics - Phenomenology · Physics 2020-07-31 Benjamin V. Lehmann , Stefano Profumo

Excitonic effects in 1D semiconductors can be qualitatively different from those in higher dimensions. In particular, the Sommerfeld factor, the ratio of the above-band-edge excitonic continuum absorption to free electron-hole pair…

We consider the scattering of dark matter particles from superfluid liquid $^4$He, which has been proposed as a target for their direct detection. Focusing on dark matter masses below ~1 MeV, we demonstrate from sum-rule arguments the…

High Energy Physics - Phenomenology · Physics 2021-06-18 Gordon Baym , D. H. Beck , Jeffrey P. Filippini , C. J. Pethick , Jessie Shelton

Resistive Pulse Sensing (RPS) is a key label-free technology to measure particles and single-cell size distribution. As a growing corpus of evidence supports that cancer cells exhibit distinct mechanical phenotypes from healthy cells,…

Biological Physics · Physics 2020-04-01 Antoine Riaud , Anh L. P. Thai , Wei Wang , Valerie Taly

Using femtosecond pump-probe spectroscopy with pulse shaping techniques, one can generate and detect coherent phonons in chirality-specific semiconducting single-walled carbon nanotubes. The signals are resonantly enhanced when the pump…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 G. D. Sanders , C. J. Stanton , J. -H. Kim , K. -J. Yee , Y. -S. Lim , E. H. Haroz , L. G. Booshehri , J. Kono , R. Saito

We present measurements of the scintillation pulse shape in liquid xenon for nuclear recoils (NR) and electronic recoils (ER) at electric fields of 0 to 0.5 kV/cm for energies $<$ 15 keV and $<$ 70 keV electron-equivalent, respectively. The…

Instrumentation and Detectors · Physics 2018-05-24 E. Hogenbirk , J. Aalbers , P. A. Breur , M. P. Decowski , K. van Teutem , A. P. Colijn

The capacity to electrically detect phonons, ultimately at the single-phonon limit, is a key requirement for many schemes for phonon-based quantum computing, so-called quantum phononics. Here, we predict that by exploiting the strong…

Mesoscale and Nanoscale Physics · Physics 2023-01-20 Ali Kefayati , Jonathan P. Bird , Vasili Perebeinos

We explore phonon-mediated quantum transport through electronic noise characterization of a commercial CMOS transistor. The device behaves as a single electron transistor thanks to a single impurity atom in the channel. A low noise…

We present updated global fits of the constrained Minimal Supersymmetric Standard Model (cMSSM), including the most recent constraints from the ATLAS and CMS detectors at the LHC, as well as the most recent results of the XENON100…

High Energy Physics - Phenomenology · Physics 2012-01-20 G. Bertone , D. G. Cerdeno , M. Fornasa , R. Ruiz de Austri , C. Strege , R. Trotta

Generically, the effective coupling between the dark matter and an atom scales with the number of constituents in the atom, resulting in the effective coupling being proportional to the mass of the atom. In this limit, when the momentum…

High Energy Physics - Phenomenology · Physics 2019-09-18 Peter Cox , Tom Melia , Surjeet Rajendran

New data are reported from the operation of a 4.0 kg CF$_{3}$I bubble chamber in the 6800-foot-deep SNOLAB underground laboratory. The effectiveness of ultrasound analysis in discriminating alpha-decay background events from single nuclear…

Direction measurement of weakly interacting massive particles in time-projection chambers can provide definite evidence of their existence and help to determine their properties. This article demonstrates several concepts for charge…

In a recent letter we proposed a new non-thermal mechanism of Dark Matter production based on vacuum misalignment, where both the Higgs boson and a very light pseudo-scalar $\eta$ emerge from the Dark sector. In this letter, we identify the…

High Energy Physics - Phenomenology · Physics 2020-10-21 Giacomo Cacciapaglia , Chengfeng Cai , Mads T. Frandsen , Martin Rosenlyst , Hong Hao Zhang

The Cryogenic Dark Matter Search experiment uses low-temperature solid-state detectors to seek Weakly Interacting Massive Particles (WIMPs) and has the world's best exclusion limit on the spin-independent WIMP-nucleon cross section. The…

High Energy Physics - Experiment · Physics 2019-08-13 Oleg Kamaev

The CDMS-II collaboration has reported 3 events in a Si detector, which are consistent with being nuclear recoils due to scattering of Galactic dark matter particles with a mass of about 8.6 GeV and a cross-section on neutrons of about 2 x…

High Energy Physics - Phenomenology · Physics 2013-08-05 Mads T. Frandsen , Felix Kahlhoefer , Christopher McCabe , Subir Sarkar , Kai Schmidt-Hoberg

The Cryogenic Dark Matter Search low ionization threshold experiment (CDMSlite) searches for interactions between dark matter particles and germanium nuclei in cryogenic detectors. The experiment has achieved a low energy threshold with…