Opening for submissions mid-2020, PRX Quantum will be a highly selective, open access journal featuring quantum information science and technology research with an emphasis on lasting and profound impact. The journal expands on the excellence and innovation of Physical Review X (PRX).

The collection contains papers that have made important contributions to atomic, molecular, and optical physics and quantum information by announcing significant discoveries or by initiating new areas of research.

Collection

A toy model is developed to demonstrate how magnetic monopole structures can be created in spin composites exposed to slowly varying external magnetic fields. The monopoles can appear at points in parameter space where the external magnetic field is nonzero, in sharp contrast to the more well-known pure Zeeman case.

A chiral network scheme is modified by the addition of microcavities leading to the prediction of a boost in concurrence. The protocol is expected to be robust against experimental imperfections and can be implemented in state-of-the-art integrated photonic platforms.

A pump-probe scheme for attosecond time-resolved quantum beat spectroscopy of bound states in atoms was proposed. The proposal could have potential applications to a broader variety of chemical species including molecules and solids.

The possibility of using a Raman scheme to transfer ions within a beam from the ground to a higher-lying metastable state with high-velocity selectivity is investigated. This promising scheme could find important applications in high-precision laser spectroscopy and optical high-voltage measurements, among others.

Mollow explains the absorption spectrum of a driven two-level atom.

B. R. Mollow
Phys. Rev. A 5, 2217 (1972)

Collection

The excitation spectrum of a one-dimensional two-component bosonic mixture of ultracold atoms is studied by an extension of the Gross-Pitaevskii equation approach. The results can help distinguish the self-bound droplet state from the bright soliton.

Dark solitons with controllable velocity and initial position are created in a Bose-Einstein condensate by imprinting both amplitude and phase patterns through a digital mirror device. This work could enable future studies on soliton dynamics, stability, and collisions.

A new technique allows researchers to generate solitons with tunable speeds in Bose-Einstein condensates.

Synopsis on:
A. R. Fritsch et al.
Phys. Rev. A 101, 053629 (2020)

An enhancement of metastable production of rare isotopes of krypton by optical pumping is demonstrated experimentally. The result could help improve the atom trap trace analysis technique, which has wide applications in geology and climate science.

Quantum mechanics predicts that interference arising from multiple slits can be reduced to a sum of outcomes from the simpler one- and two-slit counterparts. Testing deviations from these results has been discussed as testing the validity of Born’s rule. Here an experiment that considers the evolution between three levels of an atom as the quantum paths is devised, providing precision tools that can be used to test universality of Born’s and to constrain theories designed to supersede quantum mechanics.

Nonlocal quantum correlations are not necessary to produce a ghost image.

Yaron Bromberg, Ori Katz, and Yaron Silberberg
Phys. Rev. A 79, 053840 (2009)

Collection

The orbital angular momentum properties of beams having an arbitrary degree of coherence for any radial and azimuthal order are analyzed. A generalized analytic solution is determined and the vortex structure on propagation is found to reconstruct itself, an effect that can be considered as a vortex supplement to the van Cittert–Zernike theorem.

Physicists working in optics, atomic and molecular physics, and quantum information reflect on landmark papers and how they influence research today.

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