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Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
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Duality and quantum state engineering in cavity arrays.

Nilakantha Meher1, S Sivakumar2, Prasanta K Panigrahi3

  • 1Materials Science Group, Indira Gandhi Centre For Atomic Research, Homi Bhabha National Institute, Kalpakkam, 603102, Tamilnadu, India.

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|August 25, 2017
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Summary
This summary is machine-generated.

We demonstrate a photon transport system in coupled cavities. This system allows controlled photon transfer and state transfer between any two cavities without populating others.

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Area of Science:

  • Quantum optics
  • Cavity quantum electrodynamics
  • Photonic systems

Background:

  • Coupled cavity systems are fundamental in quantum optics.
  • Understanding photon dynamics in these systems is crucial for quantum information processing.
  • Previous models often focused on specific photon numbers or configurations.

Purpose of the Study:

  • To establish a dynamic equivalence between a two-cavity system with N-1 photons and an N-cavity array with one photon.
  • To utilize this duality to achieve controlled photon transfer between specific cavities.
  • To explore the generation of quantum states, such as generalized NOON states.

Main Methods:

  • Theoretical modeling of coupled cavity systems.
  • Analysis of photon transport phenomena.
  • Application of duality principle to derive system parameters.
  • Investigation of state transfer fidelity.

Main Results:

  • Demonstrated dynamic equivalence between different cavity configurations.
  • Identified coupling strengths and nonlinearities for controlled photon transfer.
  • Achieved perfect state transfer between any two cavities in the array.
  • Established the possibility of high-fidelity generalized NOON state generation.

Conclusions:

  • The established duality provides a powerful tool for designing quantum optical systems.
  • Controlled photon and state transfer in cavity arrays is feasible.
  • The system offers a pathway for generating advanced quantum states for quantum information applications.