Browse 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.

An optomechanical system in which light and matter exchange roles promises new kinds of quantum states.

Testing hypotheses about the validity of different dynamical models can now be done on a much wider range of quantum systems.

The sloshing of light between optical waveguides replicates the quantum-mechanical exchange between an atom and an electromagnetic mode.

The next generation of ultrahigh energy lasers will be able to produce extremely dense electron-positron plasmas and intense bursts of gamma rays, according to simulations, and both will lead to new types of experiments.

A waveguide’s dielectric properties could result in an effective gauge field for photons even though they have no charge.

Calculations reveal the relationship between work and free energy for a quantum particle contained in a box with a moving wall.

Interacting atoms mimic the behavior of identical fermions.

Quantum interference of pairs of photons emitted by nitrogen-vacancy centers in diamond paves the way for entanglement of distant qubits.