Browse Physics

Design ideas for making new optical devices borrow from supersymmetry, a candidate theory in particle physics.

Natural defect states can render nanomechanical oscillators nonlinear and allow creation of nonclassical mechanical states.

A new standard for measuring the relative size of a quantum object could help in comparing different experiments at the quantum-classical boundary.

Entanglement of two atoms is achieved by the detection of a single photon.

Quantum Hall effects can be exploited to tune, reverse, and even eliminate the Casimir force between two graphene sheets.

New calculations determine the minimum cost of making a quantum measurement.

Existing or planned electron accelerators may be able to see the breakdown of general relativity.

Researchers demonstrate a scheme that allows counting up to 100 atoms in a given quantum state, which may enable high precision measurements with entangled states.

A proposed interferometry experiment could detect quantum states, called anyons, which are neither bosons nor fermions.

State of the art quantum measurements show that the original formulation of Heisenberg’s uncertainty principle can be violated.

What looks like supersolidity in helium could actually be the result of changes in helium’s elasticity, according to theory.

Two proposed experiments may allow measurement of how much entanglement is present in a many-body quantum system.

A novel measurement of the Casimir force may help settle a long-standing debate over how to deal with a certain type of vacuum fluctuation.