312 citations · 1.5k across the 21 of their papers we have counts for
4 papers · 1 filter
Coherent Population Trapping of an Electron Spin in a Single Negatively Charged Quantum Dot
Xiaodong Xu, Bo Sun, Paul R. Berman +4
Coherent population trapping (CPT) refers to the steady-state trapping of population in a coherent superposition of two ground states which are coupled by coherent optical fields t…
Femtosecond Demagnetization and Hot Hole Relaxation in Ferromagnetic GaMnAs
J. Wang, L. Cywinski, C. Sun +3
We have studied ultrafast photoinduced demagnetization in GaMnAs via two-color time-resolved magneto-optical Kerr spectroscopy. Below-bandgap midinfrared pump pulses strongly excit…
A Single Charged Quantum Dot in a Strong Optical Field: Absorption, Gain, and the AC Stark Effect
Xiaodong Xu, Bo Sun, Erik D. Kim +6
We investigate a singly-charged quantum dot under a strong optical driving field by probing the system with a weak optical field. When the driving field is detuned from the trion t…
Adiabatic optical entanglement between electron spins in separate quantum dots
S. K. Saikin, C. Emary, D. G. Steel +1
We present an adiabatic approach to the design of entangling quantum operations with two electron spins localized in separate InAs/GaAs quantum dots via the Coulomb interaction bet…