Results 1 to 10 of about 2,129 (30)

Localizing Gravitational Wave Sources with Single-Baseline Atom Interferometers [PDF]

open access: yes, 2017
Localizing sources on the sky is crucial for realizing the full potential of gravitational waves for astronomy, astrophysics, and cosmology. We show that the mid-frequency band, roughly 0.03 to 10 Hz, has significant potential for angular localization ...
Anil Chandran (3483269)   +5 more
core   +4 more sources

Holographic interference in atomic photoionization from a semiclassical standpoint [PDF]

open access: yes, 2019
A theoretical study of the interference pattern imprinted on the doubly differential momentum distribution of the photoelectron due to atomic ionization induced by a short laser pulse is developed from a semiclassical standpoint. We use the semiclassical
Arbo, Diego, López, Sebastián David
core   +2 more sources

Dynamics of a single ion spin impurity in a spin-polarized atomic bath [PDF]

open access: yes, 2018
We report on observations of spin dynamics in single Yb$^+$ ions immersed in a cold cloud of spin-polarized $^6$Li atoms. This species combination has been proposed to be the most suitable system to reach the quantum regime in atom-ion experiments. For $^
Ewald, Norman Vincenz   +5 more
core   +3 more sources

Current and future perspectives of positronium and muonium spectroscopy as dark sectors probe [PDF]

open access: yes, 2019
Positronium and Muonium are purely leptonic atoms and hence free of an internal sub-structure. This qualifies them as potentially well suited systems to probe the existence of physics beyond the Standard Model. We hence carry out a comprehensive study of
Frugiuele, Claudia   +2 more
core   +3 more sources

Momentum transfers in correlation-assisted tunnelling [PDF]

open access: yes, 2013
We consider correlation-assisted tunnel ionization of a small molecule by an intense low-frequency laser pulse. In this mechanism, the departing electron excites the state of the ion via a Coulomb interaction.
Ivanov, Misha, Pisanty, Emilio
core   +2 more sources

Review of experimental and theoretical status of the proton radius puzzle [PDF]

open access: yes, 2017
The discrepancy between the measured Lamb shift in muonic hydrogen and expectations from electron-proton scattering and regular hydrogen spectroscopy has become known as the proton radius puzzle, whose most "mundane" resolution requires a $> 5 \sigma ...
Hill, Richard J.
core   +2 more sources

Frequency shifts in noble-gas magnetometers

open access: yes, 2019
Polarized nuclei are a powerful tool in nuclear spin studies and in searches for beyond-the-standard model physics. Noble-gas comagnetometer systems, which compare two nuclear species, have thus far been limited by anomalous frequency variations of ...
Chupp, Timothy E.   +7 more
core   +2 more sources

Recollision scenario without tunneling : Role of the ionic core potential [PDF]

open access: yes, 2013
The standard model of strong laser physics, the recollision scenario, omits the ionic core potential after tunneling. Strikingly, although the Coulomb interaction drives all stages of recollision, the maximum energy the electrons bring back to the core ...
Chandre, Cristel   +3 more
core   +5 more sources

Variation of fundamental constants in space and time: theory and observations

open access: yes, 2008
Review of recent works devoted to the temporal and spatial variation of the fundamental constants and dependence of the fundamental constants on the gravitational potential (violation of local position invariance) is presented. We discuss the variation
Flambaum, V. V.
core   +1 more source

Constraints on muon-specific dark forces

open access: yes, 2014
The recent measurement of the Lamb shift in muonic hydrogen allows for the most precise extraction of the charge radius of the proton which is currently in conflict with other determinations based on $e-p$ scattering and hydrogen spectroscopy.
Karshenboim, Savely G.   +2 more
core   +1 more source

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