Physics – Quantum Physics
Scientific paper
2003-11-09
Physics
Quantum Physics
4pages,2figures
Scientific paper
Quantum information storage (QIS) is a physical process to write quantum states into a quantum memory (QM). We observe that in some general cases the quantum state can be retrieved up to a unitary transformation depicted by the non-Abelian Berry's geometric phase factor (holonomy). The QIS of photon with this geometric character can be implemented with the symmetric collective excitations of a $\Lambda$-atom ensemble, which is adiabatically controlled by a classical light with a small detuning $\delta$. The cyclic change of the controlled Rabi frequency $\Omega(t)$ with period $T=\frac{2n\pi}{\delta}$ accumulates additional geometric phases in different components of the final photon state. Then, in a purely geometric way the stored state can be decoded from the final state.
Li Yadong
Sun Chang-Pu
Zhang Pei-Pei
No associations
LandOfFree
Geometric Quantum Information Storage Based on Atomic Ensemble does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Geometric Quantum Information Storage Based on Atomic Ensemble, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Geometric Quantum Information Storage Based on Atomic Ensemble will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-401158