TY - JOUR

T1 - Electron spin noise under the conditions of nuclei-induced frequency focusing

AU - Jäschke, Natalie

AU - Anders, Frithjof B.

AU - Glazov, Mikhail M.

PY - 2018/7/24

Y1 - 2018/7/24

N2 - We study theoretically the electron spin noise in quantum dots under nonequilibrium conditions caused by the pumping by a train of circularly polarized optical pulses. In such a situation, the nuclear spins are known to adjust in such a way that the electron spin precession frequencies become multiples of the pump pulse repetition frequency. This so-called phase synchronization effect was uncovered in A. Greilich et al. [Science 317, 1896 (2007)SCIEAS0036-807510.1126/science.1146850] and termed nuclei-induced frequency focusing of electron spin coherence. Using the classical approach to the central spin model, we evaluate the nuclear spin distribution function and the electron spin noise spectrum. We show that the electron spin noise spectrum consists of sharp peaks corresponding to the phase synchronization conditions and directly reveal the distribution of the nuclear spins. We discuss the effects of nuclear spin relaxation after the pumping is over and analyze the corresponding evolution of nuclear spin distributions and electron spin noise spectra.

AB - We study theoretically the electron spin noise in quantum dots under nonequilibrium conditions caused by the pumping by a train of circularly polarized optical pulses. In such a situation, the nuclear spins are known to adjust in such a way that the electron spin precession frequencies become multiples of the pump pulse repetition frequency. This so-called phase synchronization effect was uncovered in A. Greilich et al. [Science 317, 1896 (2007)SCIEAS0036-807510.1126/science.1146850] and termed nuclei-induced frequency focusing of electron spin coherence. Using the classical approach to the central spin model, we evaluate the nuclear spin distribution function and the electron spin noise spectrum. We show that the electron spin noise spectrum consists of sharp peaks corresponding to the phase synchronization conditions and directly reveal the distribution of the nuclear spins. We discuss the effects of nuclear spin relaxation after the pumping is over and analyze the corresponding evolution of nuclear spin distributions and electron spin noise spectra.

KW - QUANTUM DOTS

KW - DYNAMICS

KW - SPECTROSCOPY

KW - COMPUTATION

UR - http://www.scopus.com/inward/record.url?scp=85051413677&partnerID=8YFLogxK

UR - http://www.mendeley.com/research/electron-spin-noise-under-conditions-nucleiinduced-frequency-focusing

U2 - 10.1103/PhysRevB.98.045307

DO - 10.1103/PhysRevB.98.045307

M3 - Article

AN - SCOPUS:85051413677

VL - 98

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 1098-0121

IS - 4

M1 - 045307

ER -