Details
| Original language | English |
|---|---|
| Pages (from-to) | 839-863 |
| Number of pages | 25 |
| Journal | Quantum Information Processing |
| Volume | 10 |
| Issue number | 6 |
| Publication status | Published - 4 Oct 2011 |
Abstract
This article reviews recent research towards a universal light-matter interface. Such an interface is an important prerequisite for long distance quantum communication, entanglement assisted sensing and measurement, as well as for scalable photonic quantum computation.We reviewthe developments in light-matter interfaces based on room temperature atomic vapors interacting with propagating pulses via the Faraday effect. This interaction has long been used as a tool for quantum nondemolition detections of atomic spins via light. It was discovered recently that this type of light-matter interaction can actually be tuned to realizemore general dynamics, enabling better performance of the light-matter interface as well as rendering tasks possible, which were before thought to be impractical. This includes the realization of improved entanglement assisted and backaction evading magnetometry approaching the Quantum Cramer-Rao limit, quantum memory for squeezed states of light and the dissipative generation of entanglement. A separate, but related, experiment on entanglement assisted cold atom clock showing the Heisenberg scaling of precision is described. We also review a possible interface between collective atomic spins with nano- or micromechanical oscillators, providing a link between atomic and solid state physics approaches towards quantum information processing.
Keywords
- Atomic ensembles, Light matter interface, Optomechanics
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Statistical and Nonlinear Physics
- Mathematics(all)
- Theoretical Computer Science
- Computer Science(all)
- Signal Processing
- Mathematics(all)
- Modelling and Simulation
- Engineering(all)
- Electrical and Electronic Engineering
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In: Quantum Information Processing, Vol. 10, No. 6, 04.10.2011, p. 839-863.
Research output: Contribution to journal › Review article › Research › peer review
}
TY - JOUR
T1 - Quantum information at the interface of light with atomic ensembles and micromechanical oscillators
AU - Muschik, Christine A.
AU - Krauter, Hanna
AU - Hammerer, Klemens
AU - Polzik, Eugene S.
N1 - Funding information: Acknowledgments We acknowledge support from the Elite Network of Bavaria (ENB) project QCCC and the EU projects MALICIA and QUEVADIS. H. K. acknowledges funding through the Centre for Quantum Engineering and Space-Time Research (QUEST) at the Leibniz University Hanover.
PY - 2011/10/4
Y1 - 2011/10/4
N2 - This article reviews recent research towards a universal light-matter interface. Such an interface is an important prerequisite for long distance quantum communication, entanglement assisted sensing and measurement, as well as for scalable photonic quantum computation.We reviewthe developments in light-matter interfaces based on room temperature atomic vapors interacting with propagating pulses via the Faraday effect. This interaction has long been used as a tool for quantum nondemolition detections of atomic spins via light. It was discovered recently that this type of light-matter interaction can actually be tuned to realizemore general dynamics, enabling better performance of the light-matter interface as well as rendering tasks possible, which were before thought to be impractical. This includes the realization of improved entanglement assisted and backaction evading magnetometry approaching the Quantum Cramer-Rao limit, quantum memory for squeezed states of light and the dissipative generation of entanglement. A separate, but related, experiment on entanglement assisted cold atom clock showing the Heisenberg scaling of precision is described. We also review a possible interface between collective atomic spins with nano- or micromechanical oscillators, providing a link between atomic and solid state physics approaches towards quantum information processing.
AB - This article reviews recent research towards a universal light-matter interface. Such an interface is an important prerequisite for long distance quantum communication, entanglement assisted sensing and measurement, as well as for scalable photonic quantum computation.We reviewthe developments in light-matter interfaces based on room temperature atomic vapors interacting with propagating pulses via the Faraday effect. This interaction has long been used as a tool for quantum nondemolition detections of atomic spins via light. It was discovered recently that this type of light-matter interaction can actually be tuned to realizemore general dynamics, enabling better performance of the light-matter interface as well as rendering tasks possible, which were before thought to be impractical. This includes the realization of improved entanglement assisted and backaction evading magnetometry approaching the Quantum Cramer-Rao limit, quantum memory for squeezed states of light and the dissipative generation of entanglement. A separate, but related, experiment on entanglement assisted cold atom clock showing the Heisenberg scaling of precision is described. We also review a possible interface between collective atomic spins with nano- or micromechanical oscillators, providing a link between atomic and solid state physics approaches towards quantum information processing.
KW - Atomic ensembles
KW - Light matter interface
KW - Optomechanics
UR - http://www.scopus.com/inward/record.url?scp=80755189896&partnerID=8YFLogxK
U2 - 10.1007/s11128-011-0294-2
DO - 10.1007/s11128-011-0294-2
M3 - Review article
AN - SCOPUS:80755189896
VL - 10
SP - 839
EP - 863
JO - Quantum Information Processing
JF - Quantum Information Processing
SN - 1570-0755
IS - 6
ER -