Ultrafast optical rotations of electron spins in quantum dots

By A. Greilich, Sophia E. Economou, S. Spatzek, D. Yakovlev, D. Reuter, A. Wieck, T. Reinecke, M. Bayer. 2009

174 citations recorded by the source corpus.

The spin state of electrons trapped in a quantum dot only lasts a few microseconds. Before this information is lost, it is useful to controllably rotate the spin as many times as possible. Laser pulses can now rotate electron spins in an ensemble of quantum dots in just a few picoseconds.

Subfields: Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/1acaa19247a923e4a5d6a5ceaaecc481a8391d33

Citations in the corpus

• Optical holonomic single quantum gates with a geometric spin under a zero field (2017, unknown): “|ψ⟩ p = cos ( θ 2 ) |+1⟩p + e sin ( θ 2 ) |−1⟩p, (14)”
• Ultrafast optical spin echo in a single quantum dot (2010, unknown): “Ultrafast optical spin control allows gate operations to be performed on the spin within a picosecond timescale [4–14], orders of magnitude faster than microwave or electrical control [15, 16].”