Beating the Thermal Limit of Qubit Initialization with a Bayesian Maxwell’s Demon
Mark A. I. Johnson, Mateusz Mądzik, Fay E. Hudson, Kohei M. Itoh, Alexander Jakob, David N. Jamieson, Andrew S. Dzurak, Andrea Morello
Abstract
A new method for initializing an electron spin qubit in its low-energy state achieves a 20-fold reduction in preparation error by using a digital ``Maxwell's demon'' to effectively cool the electron far below its initial temperature.
Topics & Concepts
Maxwell's demonQubitLimit (mathematics)DemonPhysicsBayesian probabilityInitializationStatistical physicsThermalQuantum mechanicsClassical mechanicsTheoretical physicsComputer scienceQuantumArtificial intelligenceMathematicsThermodynamicsMathematical analysisProgramming languageQuantum Mechanics and ApplicationsQuantum Computing Algorithms and ArchitectureQuantum Information and Cryptography