Corralling cats in a quantum network

#Quantum #Entanglement #PhaseEstimation #QuantumComputing
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Abstract: A crucial requirement for large-scale quantum information processing will be the development of modular quantum processors capable of transmitting quantum information between qubits housed at different nodes. In this talk, I will describe a strategy for generating “which-path” entanglement between a qubit and a light pulse [1].The resulting qubit—which-path entangled state can be used for distributing entanglement between nodes in a quantum network, or for achieving optimal quantum-enhanced phase estimation in an interferometer using phase sensitive (rather than photon-number-resolving) measurements [2]. Finally, I will also describe strategies for performing long-range "flying-cat" parity checks of distant stationary qubits using conditional phase shifts on propagating light pulses [3]. This could allow for the implementation of distributed fault-tolerant quantum computing, or for the measurement based preparation of entangled resource states for quantum communication protocols.
 
[1] Z. M. McIntyre and W. A. Coish, Phys. Rev. Lett. 132, 093603 (2024)
[2] Z. M. McIntyre and W. A. Coish, arXiv:2405.13265
[3] Z. M. McIntyre and W. A. Coish, Phys. Rev. Research 6, 023247 (2024)

  Date and Time

  Location

  Hosts

  Registration


  • Date: 04 Jul 2024
  • Time: 11:30 AM to 12:30 PM
  • All times are (UTC-04:00) Eastern Time (US & Canada)
  • Add_To_Calendar_icon Add Event to Calendar
  • J. Armand Bombardier J-2074, Polytechnique Montréal
  • Montréal, Quebec
  • Canada J3X 1P7
  • Contact Event Hosts

  • Contact: nicolas.quesada@polymtl.ca

  • Co-sponsored by Prof. Nicolas Quesada
  • Starts 27 June 2024 12:00 AM
  • Ends 04 July 2024 12:00 AM
  • All times are (UTC-04:00) Eastern Time (US & Canada)
  • No Admission Charge

  Speakers

Zoé McIntyre of McGill University

Topic:

Corralling cats in a quantum network

Abstract: A crucial requirement for large-scale quantum information processing will be the development of modular quantum processors capable of transmitting quantum information between qubits housed at different nodes.In this talk, I will describe a strategy for generating “which-path” entanglement between a qubit and a light pulse [1].The resulting qubit—which-path entangled state can be used for distributing entanglement between nodes in a quantum network, or for achieving optimal quantum-enhanced phase estimation in an interferometer using phase sensitive (rather than photon-number-resolving) measurements [2]. Finally, I will also describe strategies for performing long-range "flying-cat" parity checks of distant stationary qubits using conditional phase shifts on propagating light pulses [3]. This could allow for the implementation of distributed fault-tolerant quantum computing, or for the measurement based preparation of entangled resource states for quantum communication protocols.
 
[1] Z. M. McIntyre and W. A. Coish, Phys. Rev. Lett. 132, 093603 (2024)
[2] Z. M. McIntyre and W. A. Coish, arXiv:2405.13265
[3] Z. M. McIntyre and W. A. Coish, Phys. Rev. Research 6, 023247 (2024)

Biography:

Bio: Zoé is from Halifax and is currently a PhD student at McGill in the group of Bill Coish. Her research focuses mainly on quantum information processing with cavity QED systems.