Browse Physics

Theoretical calculations describe the behavior of a large quantum circuit by taking advantage of certain symmetrical relationships between superconducting elements.

A device that efficiently transfers single electrons from one grid point to another on the surface of liquid helium could provide a scalable way to make arrays of electron qubits.

Spin-dependent forces create quantum superpositions of different structures of a trapped ion crystal.

Combining operations with one and two spin qubits may lead to superior quantum computers.

Quick detection of photogenerated electrons in a quantum dot may lead to a better method to transfer quantum information between optical and electrical media.

Strain can be used to shift the resonant frequency of electron spin to the point where quantum processing starts looking feasible.

A theoretical paper suggests that quantum entanglement between macroscopic objects could be accomplished at temperatures much higher than previously thought.

Ensembles of dilute spin impurities in condensed matter systems can be accessed using microelectronic circuits and therefore may offer a way for long-term storage and enhanced processing of quantum information.

A proposal for how to design a superconducting qubit solves the problem of decoherence caused by randomly charged impurities.

A theoretical analysis of recent experiments suggests that a key feature of a topological quantum computer—the unusual statistics of quasiparticles in the quantum Hall effect—may finally have been observed.