{"id":1419,"date":"2022-12-01T08:44:38","date_gmt":"2022-12-01T13:44:38","guid":{"rendered":"https:\/\/techfragments.com\/?p=1419"},"modified":"2022-12-01T08:44:43","modified_gmt":"2022-12-01T13:44:43","slug":"maxwells-demon-qubit-initialization","status":"publish","type":"post","link":"https:\/\/techfragments.com\/maxwells-demon-qubit-initialization\/","title":{"rendered":"A Digital Maxwell’s Demon For Qubit Initialization"},"content":{"rendered":"

A team of quantum engineers at the University of New South Wales has developed a method to reset a quantum computer<\/a>, initializing a quantum bit in the “0” state with very high confidence, a requirement for reliable quantum computations.<\/p>\n

The method is surprisingly simple: it is based on the old concept of ‘Maxwell’s demon,’ an omniscient being capable of separating a gas into hot and cold states by measuring the speed of individual molecules.<\/p>\n

“Here we used a much more modern ‘demon’ \u2014a fast digital voltmeter \u2014 to watch the temperature of an electron drawn at random from a warm pool of electrons. In doing so, we made it much colder than the pool it came from, and this corresponds to a high certainty of it being in the ‘0’ computational state,”<\/p><\/blockquote>\n

said team leader Professor Andrea Morello.<\/p>\n

Electron Spins In Silicon<\/h2>\n