Single atom quantum memories are easier to access

日期:2019-03-07 02:13:20 作者:厍把 阅读:

DELICATE quantum bits have been stored in single atoms, a feat that could make accessing memory in quantum computersmore convenient. Unlike classical bits, which can store only a 0 or 1, qubits can be in a superposition of the two states at once. Two or more can also be “entangled” and remain linked across great distances. Both properties vastly enhance the power of quantum computers compared with normal ones. But while a qubit can be encoded in the polarisation of a photon, which can transport qubits efficiently,