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MA3: Dissipative Quantum Simulation

Quantum circuit schematic: a block e^-tL maps |0⟩ inputs to target |Ψ⟩ or e^-βH, linked to a blue tensor with couplings ω1, ω2, ω3.

A central primitive in quantum simulation is ground- or thermal-state preparation and measurement of dynamical or static correlation functions. Reducing noise remains a central challenge to achieving practical quantum advantage in simulation. MA3 aims to develop strategies for using engineered dissipation for a range of tasks in quantum simulation, and to study the behavior and phases of mixed many-body states. While unwanted decoherence is a major hurdle in quantum simulation and computing, a carefully engineered dissipation can instead serve as a powerful tool. To advance towards useful quantum simulation, our work on dissipative quantum simulation in RQS Phase II is organized into three focus areas. 

  • Focus area 3.1: Dissipative preparation of many-body states.
  • Focus area 3.2: Open-system engineering and simulation.
  • Focus area 3.3: Mixed-state phases of matter and quantum error correction.

We will advance the theory and practice of dissipative algorithms co-designed with available non-unitary operations.

MA3 Co-Leads

  • Kenneth Brown

    Co-PI, MA3 Co-Lead

  • Dima

    Dmitry Abanin

    MA3 Co-Lead