Controllable freezing of the nuclear spin bath in a single-atom spin qubit
Mateusz T. Mądzik, Thaddeus D. Ladd, Fay E. Hudson, Kohei M. Itoh, Alexander M. Jakob, Brett C. Johnson, Jeffrey C. McCallum, David N. Jamieson, Andrew S. Dzurak, Arne Laucht, Andrea Morello
Abstract
Si nuclear spin dynamics, which reveals the degree of backaction provided by the electron spin. This study clarifies the limits of ergodic assumptions in nuclear bath dynamics and provides previously unidentified strategies for maximizing coherence and gate fidelity of spin qubits in semiconductors.
Topics & Concepts
DephasingQubitHyperfine structureCoherence (philosophical gambling strategy)PhysicsSpin (aerodynamics)Ergodic theoryQuantum decoherenceCoherence timeElectronQuantum mechanicsCondensed matter physicsAtomic physicsQuantumFidelityQuantum dotSpin engineeringDynamics (music)ChemistryPauli exclusion principleResidualSiliconSemiconductorHigh fidelityQuantum and electron transport phenomenaMechanical and Optical ResonatorsAdvanced NMR Techniques and Applications