Determining the electronic triplet-singlet transition probability in double quantum dots: Analogy with the double slit experiment

Abstract

We apply an elementary measurement scheme to calculate the electronic triplet-singlet transition mediated by hyperfine interaction in a double quantum dot. We show how the local character of the hyperfine interaction and the nuclear back-action process (flip-flop) are crucial to cancel destructive interferences of the triplet-singlet transition probability. It is precisely this cancellation which differentiates the hyperfine interaction from an anisotropic magnetic field which mixes the triplet and the singlet eigenstates.

5 pages, 2 figures

References in corpus (4)

• Suppression of spin relaxation in an InAs nanowire double quantum dot
• Quantum versus classical hyperfine-induced dynamics in a quantum dot
• Hysteretic behavior in weakly coupled double-dot transport in the spin blockade regime
• Decoherence induced by an interacting spin environment in the transition from integrability to chaos

Cited by in corpus (6)

• Control of Spin Blockade by AC Magnetic Fields in Triple Quantum Dots
• Theoretical study of nuclear spin polarization and depolarization in self-assembled quantum dots
• Phonon-mediated decoherence in triple quantum dot interferometers
• Charge localization and dynamical spin locking in double quantum dots driven by ac magnetic fields
• Dynamical nuclear spin polarization induced by electronic current through double quantum dots
• Temperature-dependent dynamical nuclear polarization bistabilities in double quantum dots in the spin-blockade regime