Bistability of optically-induced nuclear spin orientation in quantum dots

Abstract

We demonstrate that bistability of the nuclear spin polarization in optically pumped semiconductor quantum dots is a general phenomenon possible in dots with a wide range of parameters. In experiment, this bistability manifests itself via the hysteresis behavior of the electron Zeeman splitting as a function of either pump power or external magnetic field. In addition, our theory predicts that the nuclear polarization can strongly influence the charge dynamics in the dot leading to bistability in the average dot charge.

4 pages, 4 figures

References in corpus (9)

• Optical pumping of electronic and nuclear spin in single charge-tunable quantum dots
• Nuclear spin induced oscillatory current in spin-blocked quantum dots
• Knight Field Enabled Nuclear Spin Polarization in Single Quantum Dots
• Nucleus-mediated spin-flip transitions in GaAs quantum dots
• Nuclear Spin Switch in Semiconductor Quantum Dots
• Dynamic nuclear polarization of a single charge-tunable InAs/GaAs quantum dot
• Bistability of the Nuclear Polarisation created through optical pumping in InGaAs Quantum Dots
• Nonlinear dynamics of quantum dot nuclear spins
• Polarization-dependent shift in excitonic Zeeman splitting of self-assembled InAlAs quantum dots

Cited by in corpus (7)

• Dissipative Phase Transition in Central Spin Systems
• Polarization freezing of 10000 optically-cooled nuclear spins by coupling to a single electron
• Overhauser effect in individual InP/GaInP dots
• Long nuclear spin decay times controlled by optical pumping in individual quantum dots
• Voltage control of electron-nuclear spin correlation time in a single quantum dot
• Voltage controlled nuclear polarization switching in a single InGaAs quantum dot
• Experimental observation of multimode quantum phase transitions in a superconducting Bose-Hubbard simulator