Effects of finite trapping on the decay, recoil, and decoherence of dark states of quantum emitter arrays

Preprint Sep 2026

Spin-exchange interactions between circular Rydberg atoms over long times

Arrays of neutral atoms excited to Rydberg levels have emerged as one of the most promising platforms for quantum computation and simulation. With the hope to outperform classical devices, the number of atoms has been increased by orders of magnitude. However, the interaction time, i.e., the maximum accumulated time du...

Andrés Durán Hernández, G. Creutzer, A. Young et al. · 0 citations

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Preprint Sep 2026

Stabilization of dark states in emitter arrays coupled to a half-waveguide

The radiative properties of quantum emitters are profoundly influenced by their electromagnetic environment. When coupled to a waveguide terminated at one end by a mirror, distant emitters interact strongly via virtual photon exchange, leading to collective superradiant and subradiant states with enhanced or suppressed...

Oriol Rubies-Bigorda, S. Yelin, A. Asenjo-Garcia et al. · 0 citations

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Preprint Aug 2026

Long-lived Laughlin pairs in a depleted quantum Hall edge channel

On-demand sources and mesoscopic beam splitters allow individual ballistic electrons to collide in depleted quantum Hall edge channels, where their unscreened Coulomb interaction acts as a strong, controllable nonlinearity. Theory suggests a more striking possibility: in a strong magnetic field, the same repulsion can...

G. Barinovs, Agris Buzs, Vyacheslavs Kashcheyevs · 0 citations

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Preprint Sep 2026

Polariton Bell Node for Quantum Repeaters

We propose a Bell-measurement node for quantum repeaters based on a planar semiconductor microcavity operating in the strong-coupling regime. Cavity photons hybridize with quantum-well excitons to form polaritons combining properties of photons and matter quasiparticles. A control photon loaded into one polariton mode...

Jun-Hui Cao, Alexey Kavokin · 0 citations

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Sep 2026

Simulation of two-dimensional electronic and double-quantum coherence spectra of molecular polaritons.

We simulate two-dimensional electronic spectroscopy (2DES) and double-quantum coherence (DQC) signals for a dissipative Tavis-Cummings model using the third-order optical response function formalism. Cavity photon loss, excited state population relaxation, and fast dephasing are included through Lindblad terms, while s...

Yu-Long Ding, Shu-Ming Bai, Qiang Shi · Journal of Chemical Physics · 0 citations

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Preprint Aug 2026

Tunable-Size Unruh-DeWitt Detector in a Multimode Cavity

Quantum simulators based on Bose-Einstein condensates (BECs) provide a powerful platform to study relativistic quantum-field phenomena in the lab and in particular emulate relativistic analog particle detectors. However, such detectors typically couple to excitations beyond the acoustic phonon regime, so that the nonli...

S. Brunner, F. Mivehvar, H. Ritsch et al. · 0 citations

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