Tag: #physics

Scientists measure time-cubed quantum phase in freely falling atomic wave packets

Ultracold rubidium interferometer measures long‑predicted T^3 quantum phase in a freely falling atomic wave packet, consistent with the equivalence principle.

#quantum, #gravity, #physics, #interferometry

LUX‑ZEPLIN Sees One Unexplained High‑Energy Event, But Falls Short of Dark Matter Discovery

LUX‑ZEPLIN reported a single unexplained high‑energy event — a 2.6σ anomaly recorded in South Dakota that the team says falls far short of a discovery.

#darkmatter, #physics, #luxzeplin, #experiment

ArXiv preprint: DC electric field cools bosonic NaRb to quantum degeneracy and forms self-bound droplets

A Princeton-led arXiv preprint reports that a single static (dc) electric field cooled bosonic NaRb molecules to quantum degeneracy and produced self-bound droplets.

#physics, #ultracold, #molecules, #quantum

Northwestern team realizes first one-positron quantum cyclotron, enabling sharper antimatter tests

Northwestern physicists trapped a single positron in a quantum cyclotron, demonstrating quantum control that could enable more precise CPT tests.

#physics, #antimatter, #quantum, #positron

Paper Claims Equivalence Between Riemann Zeta Zeros and 2D Ising Model; Validation Pending

A Chinese Academy of Sciences researcher claims a 2D Ising model reproduces Riemann zeta zeros; journal listing exists but independent validation is pending.

#riemannhypothesis, #isingmodel, #mathematics, #physics

PTB reports interspecies optical‑clock comparison below 5×10⁻¹⁸ using transportable clock

PTB reports a transportable strontium lattice clock matched a stationary ytterbium‑ion clock to 4.3×10⁻¹⁸ uncertainty; result is a preprint.

#physics, #opticalclocks, #metrology, #ptb

Slovenian preprint claims light-programmable superconductivity in aluminium–silicon devices

A Slovenian arXiv preprint reports persistent, erasable superconductivity in aluminium–silicon devices controlled by ultrafast laser pulses; claims remain unverified.

#superconductivity, #lasers, #materials, #physics, #slovenia

Preprint describes three-particle bosonic Pfaffian state in ultracold rubidium atoms

A June 10 arXiv preprint reports a minimal three‑particle bosonic Pfaffian state in ultracold 87Rb — an early step toward non‑Abelian topological matter.

#physics, #quantum, #ultracold, #pfaffian

Preprint reports operation of thorium-229 nuclear clock locked to nuclear transition in crystal

A June 7 arXiv preprint claims operation of a thorium-229 nuclear clock by locking a 148.4 nm VUV laser to a nuclear transition in a thorium-doped crystal.

#physics, #nuclearclock, #thorium229, #precisionmeasurement

One‑Positron Quantum Cyclotron Demonstrated, Paving Way for More Precise Positron g‑Factor Tests

A Northwestern-led preprint reports trapping a single positron in a quantum cyclotron — a technical step toward higher‑precision tests of the positron’s magnetic moment and CPT symmetry.

#physics, #antimatter, #particlephysics, #precision

Preprint: Kaonic-fluorine test finds QED holds in atomic fields above Schwinger limit

SIDDHARTA-2 preprint reports x-ray measurements from kaonic fluorine match Dirac-Fock QED predictions in atomic fields exceeding the Schwinger limit.

#physics, #qed, #kaons, #atomic-physics