Kavli Affiliate: Austin J. Minnich
| First 5 Authors: Hirsh Kamakari, Shi-Ning Sun, Mario Motta, Austin J. Minnich,
| Summary:
Quantum simulation on emerging quantum hardware is a topic of intense
interest. While many studies focus on computing ground state properties or
simulating unitary dynamics of closed systems, open quantum systems are an
interesting target of study owing to their ubiquity and rich physical behavior.
However, their non-unitary dynamics are also not natural to simulate on digital
quantum devices. Here, we report algorithms for the digital quantum simulation
of the dynamics of open quantum systems governed by a Lindblad equation using
adaptations of the quantum imaginary time evolution (QITE) algorithm. We
demonstrate the algorithms on IBM Quantum’s hardware with simulations of the
spontaneous emission of a two level system and the dissipative transverse field
Ising model. Our work advances efforts to simulate the dynamics of open quantum
systems on quantum hardware.
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