Welcome
to the home page of Professor Jeff Kimble's quantum optics group at
Caltech.
The primary goal of
our
research is to study the quantum mechanics of open systems.
"Real-world" quantum mechanics takes into account the dissipation and
decoherence that arise from interactions of a quantum system with its
environment. In studying the role of these processes, we learn about
what is
and might be possible: how we might make, study, and preserve quantum
superpositions and other exotic states.
You
might also like to visit the web page of the Mabuchi group at
Caltech as
well as the IQI (Institute
for
Quantum Information) and the Caltech
MURI
Center for Quantum Networks.
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"Strong Interactions of Single Atoms and Photons near a Dielectric Boundary", D. J. Alton, N. P. Stern, Takao Aoki, H. Lee, E. Ostby, K. J. Vahala & H. J. Kimble, Nature Phys. 7, 159-165 (2011)
"Entanglement of spin waves among four quantum memories", K. S. Choi, A. Goban, S. B. Papp, S. J. van Enk & H. J. Kimble, Nature 468, 412-416 (2010) Caltech Press Release.
"Characterization of
Multipartite Entanglement for One Photon Shared Among Four Optical
Modes", S. B. Papp, K. S. Choi, H. Deng, P. Lougovski, S. J. van Enk
& H. J. Kimble, Science
324, 764 (2009) Caltech
Press Release.
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Cavity
Quantum Electrodynamics Cavity
quantum electrodynamics is one of the few experimentally viable systems
in which the intrinsic quantum mechanical coupling dominates
losses due to dissipation. We investigate the use of strong coupling to
control the simple quantum system of one atom interacting with a single
photon in an optical cavity. A recent
application of this strongly coupled atom-cavity system has been the
experimental realization of a one-atom laser. Here the
macroscopic amplification medium of a conventional laser is replaced by
a single cesium atom confined within a high-finesse cavity. While
everyday lasers generate classical (coherent) light, the one-atom laser
produces light with interesting quantum mechanical characteristics. |
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Quantum Networking with Atomic Ensembles |
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Cavity
QED with Microtoroidal Resonators We are
working to realize cQED phenomena using toroidal
whispering-gallery-mode (WGM) optical microcavities and cesium atoms.
Toroidal WGM optical microcavities are chip based resonators which
resonantly confine light to small volumes with extremely low losses,
giving rise to extremely high quality factors, "Q," and strong
coupling, "g," between the resonator and atoms. Toroidal cavities have
the potential to surpass their Fabry-Perot counterparts due to their
ultra-high Q, reduced mode volume, and ease of manufacture and control.
In addition, the "on-chip" design and optical fiber coupling scheme
could potentially allow integration into a quantum network. In
collaboration with the Vahala research group
in the Applied Physics department
at Caltech, our initial goal is
to demonstrate coupling between a cesium atom and a microtoroidal
resonator. |
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Quantum
interference and frequency metrology, squeezed light, and more... |
We
would
like to acknowledge the support of the following funding agencies:
National
Science Foundation, Caltech MURI on Quantum Networks (administered by
the Army
Research Office), Office of Naval Research, DARPA (through the ARO),
and
Advanced Research and Development Activity (ARDA).
home...research... people...publications...presentations...links...beer fines
Comments
and
suggestions about these pages are welcome at qoptics@its.caltech.edu.
This page
last modified on 10/01/2008.