The Hidden Size of a Quantum World May Explain Entropy’s Arrow
Two quantum studies explore how entropy’s arrow can emerge from vast macrostates, pure states, and limits on what counts as a physical operation.
Physics
Graphene’s Clean Electron Pulse Becomes a Qubit on the Move
A carefully shaped voltage pulse launches a clean electron through graphene, where gates and magnetic flux steer its quantum state.
A Neutron Star’s Hidden Phase Boundary Could Tug on Its Final Orbit
A neutron star’s hidden core may reveal itself through a vibration that nudges its orbit and leaves a subtle gravitational-wave clue.
The Quantum Gas That Lost Its Condensate—and Then Rebuilt It
After turbulence depleted a rubidium condensate, researchers watched low-momentum modes refill—and found a related inverse cascade in another quantum gas.
Why a Quantum Atom Chain Keeps Rebuilding a Crystal After a Quench
A laser-controlled atom chain repeatedly rebuilt its crystal pattern, revealing rare quantum states that resist the usual rush toward thermalization.
The Universe’s Missing Lithium May Be Hiding Inside Ancient Stars
Ancient stars contain less lithium than the Big Bang predicts. Stellar mixing, nuclear reactions and new cosmologies offer competing clues.
How Interference Makes a Photon’s Local Orbit Run Backward
A heralded single-photon experiment reveals how interference can reverse light’s local orbital flow in dim regions of a beam.
A Hexagonal Layer Finds Its Fit by Twisting on a Quasicrystal
A hexagonal colloid layer twists on a decagonal quasicrystal, creating stripe-like distortions that could make friction direction-dependent.
Can a Quantum Sensor Read a Living Worm Without Hurting It?
A quantum biosensing chip records a nanodiamond’s signal inside a living worm while researchers test how to limit microwave stress.
A Flock Can Stay Together by Turning Away—and Looking Ahead
Two computer models reveal how chemical turning or anticipation might keep a flock cohesive without a simple attractive pull.
A Drying Drop Sorts Clay Nanotubes Into Layers of Order
A heated droplet sorted polydisperse clay nanotubes into layers, revealing a route to aligned coatings—and a fluid-physics mystery.