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Strong Atom-Light Interactions Along Nanostructures: Transition from Free-space to Nanophotonic Interfaces


Goban, Akihisa (2015) Strong Atom-Light Interactions Along Nanostructures: Transition from Free-space to Nanophotonic Interfaces. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/Z9T151KX.


An exciting frontier in quantum information science is the integration of otherwise "simple" quantum elements into complex quantum networks. The laboratory realization of even small quantum networks enables the exploration of physical systems that have not heretofore existed in the natural world. Within this context, there is active research to achieve nanoscale quantum optical circuits, for which atoms are trapped near nano-scopic dielectric structures and "wired" together by photons propagating through the circuit elements. Single atoms and atomic ensembles endow quantum functionality for otherwise linear optical circuits and thereby enable the capability of building quantum networks component by component. Toward these goals, we have experimentally investigated three different systems, from conventional to rather exotic systems : free-space atomic ensembles, optical nano fibers, and photonics crystal waveguides. First, we demonstrate measurement-induced quadripartite entanglement among four quantum memories. Next, following the landmark realization of a nanofiber trap, we demonstrate the implementation of a state-insensitive, compensated nanofiber trap. Finally, we reach more exotic systems based on photonics crystal devices. Beyond conventional topologies of resonators and waveguides, new opportunities emerge from the powerful capabilities of dispersion and modal engineering in photonic crystal waveguides. We have implemented an integrated optical circuit with a photonics crystal waveguide capable of both trapping and interfacing atoms with guided photons, and have observed the collective effect, superradiance, mediated by the guided photons. These advances provide an important capability for engineered light-matter interactions, enabling explorations of novel quantum transport and quantum many-body phenomena.

Item Type:Thesis (Dissertation (Ph.D.))
Subject Keywords:Quantum network; Quantum information Science; Entanglement; Atomic ensembles; Nanophotonics; Photonic crystal waveguide; Superradiance
Degree Grantor:California Institute of Technology
Division:Physics, Mathematics and Astronomy
Major Option:Physics
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Kimble, H. Jeff
Group:Institute for Quantum Information and Matter
Thesis Committee:
  • Kimble, H. Jeff (chair)
  • Painter, Oskar J.
  • Hsieh, David
  • Alicea, Jason F.
Defense Date:14 May 2015
Record Number:CaltechTHESIS:05202015-155217795
Persistent URL:
Goban, Akihisa0000-0002-1766-6779
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:8872
Deposited By: Akihisa Goban
Deposited On:26 May 2015 21:15
Last Modified:08 Nov 2023 18:50

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