Electron spin synchronization induced by optical nuclear magnetic resonance feedback

Abstract

We predict a new physical mechanism explaining the electron spin precession frequency focusing effect observed recently in singly charged quantum dots exposed to a periodic train of resonant circularly polarized short optical pulses [A. Greilich et al, Science 317, 1896 (2007), Ref. 1]. We show that electron spin precession in an external magnetic field and a field of nuclei creates a Knight field oscillating at the frequency of nuclear spin resonance. This field drives the projection of the nuclear spin onto magnetic field to the value that makes the electron spin precession frequency a multiple of the train cyclic repetition frequency, which is the condition at which the Knight field vanishes.

4+ pages, 3 figures

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Cited by in corpus (23)

• Nuclear spin physics in quantum dots: an optical investigation
• Spin noise in quantum dot ensembles
• Theory of dynamic nuclear polarization and feedback in quantum dots
• Quantum model for mode locking in pulsed semiconductor quantum dots
• Non-equilibrium nuclear spin distribution function in quantum dots subject to periodic pulses
• Nuclear spin dynamics, noise, squeezing and entanglement in box model
• Nuclear frequency focusing in periodically pulsed semiconductor quantum dots described by infinite classical central spin models
• The theory of coherent dynamic nuclear polarization in quantum dots
• Decay and revival of electron spin polarization in an ensemble of (In,Ga)As quantum dots
• Universal nuclear focusing of confined electron spins
• Spin inertia and polarization recovery in quantum dots: Role of pumping strength and resonant spin amplification
• Nuclear Spin Noise in the Central Spin Model
• Relaxation of flying spin qubits in quantum wires by hyperfine interaction
• Interplay of spin mode locking and nuclei-induced frequency focusing in quantum dots
• Cross-correlation spectra in interacting quantum dot systems
• Signatures of long-range spin-spin interactions in an (In,Ga)As quantum dot ensemble
• Nuclear spin polarization in a single quantum dot pumped by two laser beams
• Spin-related phenomena in two-dimensional hopping regime in magnetic field
• Driven dynamics of a quantum dot electron spin coupled to bath of higher-spin nuclei
• Nuclear magnetic resonance spectroscopy of nonequilibrium steady states in quantum dots
• Electron Spin Noise under the Conditions of Nuclei Induced Frequency Focusing
• Resonant spin amplification in Faraday geometry
• Dynamical nuclear spin polarization in a quantum dot with an electron spin driven by electric dipole spin resonance