March 2026
Physics news from March 2026.
Physics
Real memory cells reveal a thermodynamic limit stricter than Landauer’s
Single-electron-resolved measurements on silicon DRAM showed bit erasure never reaches the Landauer bound, exposing a tighter, practically relevant limit on erasure energetics.
PhysicsA single-qubit engine amplifies microwaves using only quantum measurement
A superconducting qubit acts as a quantum Maxwell demon, turning the backaction energy of repeated measurements into amplified microwave pulses with no hot thermal source.