An all-optical quantum gate in a semiconductor quantum dot
We report coherent optical control of a biexciton (two electron-hole pairs), confined in a
single quantum dot, that shows coherent oscillations similar to the excited-state Rabi …
single quantum dot, that shows coherent oscillations similar to the excited-state Rabi …
Optical Stark effect in a quantum dot: ultrafast control of single exciton polarizations
We report the first experimental study of the optical Stark effect in single semiconductor
quantum dots (QD). For below band gap excitation, two-color pump-probe spectra show …
quantum dots (QD). For below band gap excitation, two-color pump-probe spectra show …
Room-temperature anomalous coherent excitonic optical Stark effect in metal halide perovskite quantum dots
Nonresonant optical driving of confined semiconductors can open up exciting opportunities
for experimentally realizing strongly interacting photon-dressed (Floquet) states through the …
for experimentally realizing strongly interacting photon-dressed (Floquet) states through the …
Coherent control and polarization readout of individual excitonic states
We present measurements and simulations of coherent control and readout of the
polarization in individual exciton states. The readout is accomplished by transient four-wave …
polarization in individual exciton states. The readout is accomplished by transient four-wave …
Impact of pure dephasing on the nonlinear optical response of single quantum dots and dot ensembles
The nonlinear optical response to ultrafast laser pulses of semiconductor quantum dots
coupled to acoustic phonons is discussed on the basis of closed-form analytical results valid …
coupled to acoustic phonons is discussed on the basis of closed-form analytical results valid …
Two-qubit conditional quantum-logic operation in a single self-assembled quantum dot
The four-level exciton/biexciton system of a single semiconductor quantum dot acts as a two-
qubit register. We experimentally demonstrate an exciton-biexciton Rabi rotation conditional …
qubit register. We experimentally demonstrate an exciton-biexciton Rabi rotation conditional …
Phonon-induced pure dephasing in exciton-biexciton quantum dot systems driven by ultrafast laser pulse sequences
A semiconductor quantum dot model accounting for single exciton as well as biexciton
states coupled to phonons and laser light is investigated in the limit of strong electronic …
states coupled to phonons and laser light is investigated in the limit of strong electronic …
Stimulated emission from the biexciton in a single self-assembled II-VI quantum dot
Using two-photon excitation, stimulated emission from the biexciton state in a single
CdSe/ZnSe quantum dot is observed in a two-pulse configuration. We directly time resolve …
CdSe/ZnSe quantum dot is observed in a two-pulse configuration. We directly time resolve …
Measurement of relaxation between polarization eigenstates in single quantum dots
Low temperature relaxation of excitons between polarization eigenstates in single interface
fluctuation quantum dots is studied using copolarized and cross-polarized transient …
fluctuation quantum dots is studied using copolarized and cross-polarized transient …
Biexcitonic resonance in the nonlinear optical response of an InAs quantum dot ensemble
Transient spectral hole burning measurements are applied to an ensemble of InAs self-
assembled quantum dots. In addition to the expected exciton hole, we observe an “antihole” …
assembled quantum dots. In addition to the expected exciton hole, we observe an “antihole” …