2008/06/19 by Eran Ginossar, Y. Levinson, Yehoshua Levinson +1
Chemistry · Computer Science · Physics and Astronomy · #Chemistry #Condensed matter physics #Non-equilibrium thermodynamics #Phase (matter) #Physics #Polarization (electrochemistry) #Quantum Information and Cryptography #Quantum and electron transport phenomena #Quantum mechanics #Quasiparticle #Semiconductor #Semiconductor Quantum Structures and Devices #Spin (aerodynamics) #Spins #Superconductivity #cond-mat.mes-hall #cond-mat.other
paper · pdf · doi:10.1103/physrevb.78.205204
published in Physical Review B 78(20) (American Physical Society) · 17 pages, 8 figures
arxiv created 2008/06/19 · openalex publication_date 2008/11/17 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We calculate the dynamical fluctuation spectrum of electronic spins in a semiconductor under a steady-state illumination by light containing polarization squeezing correlations. Taking into account quasiparticle lifetime and spin relaxation for this nonequilibrium situation we consider up to fourth order optical effects which are sensitive to the squeezing phases. We demonstrate the possibility to control the spin fluctuations by optically modulating these phases as a function of frequency, leading to a non-Lorentzian spectrum which is very different from the thermal equilibrium fluctuations in n-doped semiconductors. Specifically, in the time-domain spin-spin correlation can exhibit time delays and sign flips originating from the phase modulations and correlations of polarizations, respectively. For higher light intensity we expect a regime where the squeezing correlations will dominate the spectrum.