Physical Review A (PRA) is looking for a new part-time Associate Editor with international scientific standing in the area of quantum science to join our editorial team and become part of the stimulating academic endeavor to bring high-quality papers to our readership.

When determining the authorship list for your next paper, be generous yet disciplined.

The authors offer an overview of progress and a future perspective of large-scale optical quantum entanglement. They cover a broad range of topics from the basics of continuous-variable optical quantum entanglement and a multiplexing methodology for the generation of large-scale quantum entanglement to future approaches toward practical usages of large-scale optical quantum entanglement. The content includes both pedagogical content and the search for future directions beyond the current frontier.

Physical Review A is excited to offer better visibility and a tailored abstract for our popular Letter articles.

There is a theoretical possibility of beyond-quantum nonlocality in the framework of general probabilistic theories. The authors give a protocol to detect beyond-quantum nonlocality with standard quantum devices.

The authors suggest a method to enhance the lifetime of double excitations in quantum emitter ensembles by suppressing radiative emission. They employ the Friedrich-Wintgen mechanism of external coupling, akin to the formation of bound states in the continuum. Consequently, the generation of entangled photon pairs with nonzero angular momentum from quantum rings was predicted.

Particles with exotic statistics serve as an important testbed for quantum information protocols and help us better understand the properties of the more naturally occurring bosons and fermions. The authors investigate the separability of a class of exotic particles known as fermionic anyons, establishing a connection between their capabilities as an architecture for quantum computation and their link with bosonic and fermionic quantum computer setups.

Quantum states possess an intrinsic form of randomness, inaccessible even to an all-powerful eavesdropper. The authors find concise mathematical expressions for the maximal intrinsic randomness that can be extracted from any quantum state, as quantified by the conditional min-, von Neumann and max-entropies. They also characterize the optimal (and inequivalent) measurements in each case.

The authors demonstrate a method for robust electronically driven quantum logic gates for trapped-ion qubits. Using “atomic clock” qubits stored in hyperfine states of calcium-43 ions, they have achieved the fastest such gates with greater than 99% fidelity.

The authors present a geometric picture for tripartite entanglement that is valid for discrete, continuous, and even hybrid quantum systems. They further show that the triangle area, enclosed by any tripartite state, is a faithful measure for genuine tripartite entanglement.

Self-testing of quantum correlations is an important problem in quantum information theory, and the task becomes more challenging in multipartite scenarios. In this context, the authors provide a network-assistance-free self-testing scheme for genuine multipartite entangled states by employing a generalized Hardy-type nonlocality argument and exploring its device-independent bound of the maximum probability of success.

Increasing the high-order harmonic-generation brightness is a key route to advance attosecond XUV light sources, which can be done by exploiting a resonance with a ground-to-autoionizing-state transition of the atom. In this Letter, it is shown that narrower resonances not only boost the high-order harmonic microscopic response but also improve phase matching, while for wider resonances the phase matching can be achieved in high-order frequency mixing.

In the context of searches for a nonzero permanent electric dipole moment (EDM), a spin-precession method is demonstrated which provides a high sensitivity to experimental parameters such as electric-field strength and employed laser intensity while maintaining sensitivity to an EDM. This approach allows for constraining systematic biases as a necessary step towards an increased sensitivity in probing physics beyond the Standard Model through stringent EDM limits.

The authors present a comprehensive proposal for how to simulate amorphous quantum magnets using an array of Rydberg atoms. They describe an experimental protocol for generating various configurations, and theoretically explore some of the physics.

The authors introduce a new scattering phenomenon called coherent orthogonal scattering, where the output wave becomes orthogonal to the reference output wave in the absence of scatterers. This effect leads to complete extinction and complete mode conversion. The authors further examine the conditions for this effect and reveal its topological nature by relating it to the indivisibility between the dimension and the winding number of scattering submatrices.

The authors consider time as a resource in thermometry. Noninvasive equilibrium probes are limited by their slow equilibration time. To overcome this deficiency, the authors introduce prethermal temperature probes, making use of the long-lived metastable states of systems with quasidegenerate excited states. Prethermal probes are shown to surpass corresponding equilibrium probes in terms of effective thermal sensitivity, opening avenues for rapid thermometry.

Long-range interacting spin systems can be used to generate metrologically useful entanglement in the form of spin squeezing resulting in quantum enhanced sensitivity. This work considers power-law spin exchange interactions to generate two-mode squeezing in a bilayer geometry. It shows how spatial control over the geometry allows for achieving the same sensitivity with power-law interactions as with infinite-range interactions, and how spatially Floquet-engineered interactions allow for achieving the ultimate Heisenberg scaling of sensitivity.

The authors show that a precise microwave preparation of a quantum superposition between three rotational states of an ultracold dipolar molecule generates controllable interferences in their calculated collisional rate coefficients, at an electric field that produces a Förster resonance. This can enable coherent control on ultracold molecular collisions in current experiments.

APS has selected 156 Outstanding Referees for 2024 who have demonstrated exceptional work in the assessment of manuscripts published in the Physical Review journals. A full list of the Outstanding Referees is available online.

Three journals are excited to announce a new article type, “Perspectives,” to provide forward-looking views of cutting-edge science that has recently emerged or is enjoying renewed activity.

We are very pleased to offer the readers of Physical Review a new, carefully curated collection of articles from the vibrant field of laser-plasma particle acceleration. Some of the articles have already been published, and others will be forthcoming. This Collection is the latest in the journal’s series of Special Collections on current or emerging fields and topics.

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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