A laboratory study reports two-stage coherence in driven-dissipative exciton-polariton condensates, with early oscillations followed by a later state extending across the condensate.
A normal-incidence BBO cavity produced up to 1.0 watt near 230 nanometres, while a four-year record points to several workable designs and unresolved durability limits.
A theoretical and numerical study reports that mass anisotropy reshaped the direction and scale of unstable patterns while leaving the basic instability condition unchanged.
An exact single-particle calculation derives the quarter-flux Harper–Hofstadter model’s four-band spectrum, all Bloch eigenstates and quantum geometry, then evaluates momentum-space criteria for fractional Chern-insulator stability.
A high-density potassium-vapor sensor used synchronized probe pulses, phase cycling and signal subtraction to examine delay-dependent noise, but the study did not quantify spin squeezing.
A theoretical and numerical study reports separate finite-size and dynamical scaling patterns for a Dicke model without and with dissipation, alongside crossover scales set by system size, dissipation and ramp speed.
An arXiv preprint reports that a structural-complexity measure applied to simulated density snapshots tracked half-system entanglement entropy. Its derivative extrema matched three mean-field phase boundaries, while finer signals depended on the analysis window.
An arXiv preprint uses exact analysis and finite-system numerical calculations to predict balanced anyon-condensate phases in triangular optical ladders and map neighboring chiral and self-bound regimes.
A laboratory preprint reports spatial fluctuations in the spin field of a two-component atomic condensate with the scale dependence and amplitude expected for a quantum vacuum, while stressing that the result is an atomic analog rather than a direct measurement of a natural field.
A preprint reports competing triangular and stripe order in a dipolar quantum gas, with stronger fluctuations between the two regimes and coherence signals in both near modulation onset.
A proposed sequence combines microwave and static electric fields with a controlled spill from the trap. Its performance figures are theoretical estimates that depend on assumptions still awaiting experimental tests.