209 citations · 606 across the 9 of their papers we have counts for
9 papers
All-optical four-state magnetization reversal in (Ga,Mn)As ferromagnetic semiconductors
M. D. Kapetanakis, P. C. Lingos, C. Piermarocchi +2
Using density matrix equations of motion and a tight-binding band calculation, we predict all-optical switching between four metastable magnetic states of (III,Mn)As ferromagnets.…
Femtosecond Coherent Control of Spin with Light in (Ga,Mn)As ferromagnets
M. D. Kapetanakis, I. E. Perakis, K. J. Wickey +2
Using density matrix equations of motion, we predict a femtosecond collective spin tilt triggered by nonlinear, near--ultraviolet (3eV), coherent photoexcitation of (Ga,Mn)As…
Photovoltaic effect in bent quantum wires
Yu. V. Pershin, C. Piermarocchi
We propose a scheme for the generation of photocurrent in bent quantum wires. We calculate the current using a generalized Landauer-Buttiker approach that takes into account the el…
Experimental realization of the one qubit Deutsch-Jozsa algorithm in a quantum dot
P. Bianucci, A. Muller, C. K. Shih +3
We perform quantum interference experiments on a single self-assembled semiconductor quantum dot. The presence or absence of a single exciton in the dot provides a qubit that we co…
Optical RKKY Interaction between Charged Semiconductor Quantum Dots
C. Piermarocchi, Pochung Chen, L. J. Sham +1
We show how a spin interaction between electrons localized in neighboring quantum dots can be induced and controlled optically. The coupling is generated via virtual excitation of…
Theory of Fast Quantum Control of Exciton Dynamics in Semiconductor Quantum Dots
C. Piermarocchi, Pochung Chen, Y. S. Dale +1
Optical techniques for the quantum control of the dynamics of multiexciton states in a semiconductor quantum dot are explored in theory. Composite bichromatic phase-locked pulses a…