EDITORS' SUGGESTION

Quantum correlation measurements in interferometric gravitational-wave detectors

A detailed experimental investigation of classical and quantum noises in the LIGO gravitational-wave detector is performed. As a result, an estimate of the quantum radiation pressure noise is given and the sensitivity for the next run of astrophysical experiments is established.

D. V. Martynov et al. (LSC Instrument Authors)
Phys. Rev. A 95, 043831 (2017)


EDITORS' SUGGESTION

Low-energy E0 transition between the components of the ground-state doublet in the muonic atom Th229

The probability of the E0 transition between the ground state and the unusually low-lying 3/2+ state of the thorium nucleus is calculated, and the mean-square charge radius of the latter state is estimated. Possible applications include a high-precision nuclear clock that is highly insensitive to its environment, and a nuclear laser.

E. V. Tkalya
Phys. Rev. A 95, 042512 (2017)


EDITORS' SUGGESTION

Controlling electron spin dynamics in bichromatic Kapitza-Dirac scattering by the laser field polarization

Electron spin dynamics in counterpropagating, bichromatic laser fields are studied by solving the Dirac equation with different laser polarization configurations. It is found that the spin-dependent Kapitza-Dirac effect in the dynamical processes may be used to design spin filters for free electrons.

Matthias M. Dellweg and Carsten Müller
Phys. Rev. A 95, 042124 (2017)


EDITORS' SUGGESTION

Double resonance of Raman transitions in a degenerate Fermi gas

Momentum-resolved Raman spectra of a spin-polarized Fermi gas of ytterbium atoms are measured, and it is found that double resonances of first- and second-order Raman transitions can occur at certain magnetic fields. This implies that the conventional Raman laser dressing scheme provides two ways of spin-orbit coupling, and intrinsically generates a spinful band structure without the aid of an additional rf field.

Moosong Lee et al.
Phys. Rev. A 95, 043627 (2017)


EDITORS' SUGGESTION

Detuning-dependent properties and dispersion-induced instabilities of temporal dissipative Kerr solitons in optical microresonators

A high-accuracy measurement of dissipative Kerr soliton properties in a driven nonlinear microresonator is performed, providing an experimental verification of an approximate ansatz of the Lugiato-Lefever equation. The present work contributes to the understanding and controlling of dissipative solitons and their use as optical frequency combs.

Erwan Lucas et al.
Phys. Rev. A 95, 043822 (2017)


EDITORS' SUGGESTION

Bose-Einstein condensation of erbium atoms in a quasielectrostatic optical dipole trap

A dipolar Bose-Einstein condensate of erbium atoms is created in an optical dipole trap which is produced by a laser with midinfrared wavelength. The tight confinement of the trap may facilitate future studies of the dipolar atoms by allowing a setup of trapping with only one laser beam.

Jens Ulitzsch, Daniel Babik, Roberto Roell, and Martin Weitz
Phys. Rev. A 95, 043614 (2017)


EDITORS' SUGGESTION

Hyperfine-mediated electric quadrupole shifts in Al+ and In+ ion clocks

Electric quadrupole shifts mediated by hyperfine interactions are calculated for the Al+ and In+ clock transitions. The shift is found to be accidentally small for Al+, and can generally be suppressed by adjusting the orientation of the bias magnetic field.

K. Beloy, D. R. Leibrandt, and W. M. Itano
Phys. Rev. A 95, 043405 (2017)


EDITORS' SUGGESTION

Demonstration of the Jaynes-Cummings ladder with Rydberg-dressed atoms

The Jaynes-Cummings model, a widely employed theoretical framework in cavity quantum electrodynamics, is experimentally tested on a platform involving Rydberg-blockaded atomic ensembles. The work opens the way to a richer exploration of protocols for quantum control or, more broadly, quantum computing.

Jongmin Lee et al.
Phys. Rev. A 95, 041801(R) (2017)



EDITORS' SUGGESTION

Omnidirectional spin Hall effect in a Weyl spin-orbit-coupled atomic gas

A scheme for realizing an omnidirectional spin Hall effect is proposed with ultracold atomic systems, where the induced spin current and its polarization are perpendicular to the applied external field, and can have arbitrary directions depending on the orientation of the external field.

J. Armaitis, J. Ruseckas, and G. Juzeliūnas
Phys. Rev. A 95, 033635 (2017)

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Vol. 95, Iss. 4 — April 2017

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March 20, 2017

The American Physical Society is initiating a new series of international workshops. These Physics Next workshops will be aimed at fostering new and emerging areas of physics research, focusing on topics that straddle traditional subject boundaries and are starting to “emerge from the noise.”

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