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Precisely timing dissipative quantum information processing.

M J Kastoryano1, M M Wolf2, J Eisert3

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Dissipative engineering uses system-environment interaction for quantum computing. New dissipative gadgets enable precise timing of operations, overcoming limitations of time-independent schemes for advanced quantum information processing.

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Area of Science:

  • Quantum Information Science
  • Quantum Computing
  • Quantum Thermodynamics

Background:

  • Dissipative engineering leverages system-environment interactions for quantum information processing.
  • This approach utilizes noise as a resource, offering advantages like initial state independence.
  • However, time-independent dissipative schemes pose challenges for precisely timed operations and error correction.

Purpose of the Study:

  • To introduce novel dissipative gadgets for timed quantum information processing.
  • To overcome the limitations of time-independent dissipative dynamics.
  • To enable precise initiation, triggering, and timing of dissipative operations.

Main Methods:

  • Development of basic dissipative gadgets.
  • Analysis of time-independent Liouvillian systems.
  • Conceptualization of timed dissipative quantum information processing protocols.

Main Results:

  • Introduction of dissipative gadgets that allow precise control over dissipative operations.
  • Demonstration that these gadgets maintain a time-independent system Liouvillian.
  • A framework for timed dissipative quantum information processing is established.

Conclusions:

  • Dissipative gadgets provide a method to precisely control and time dissipative quantum operations.
  • This overcomes a key limitation of existing dissipative engineering approaches.
  • Enables new possibilities for quantum computation, including simulating measurement-based computation.