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Journal Article

Many-body hierarchy of dissipative timescales in a quantum computer

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Piazza,  Francesco
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Luitz,  David J.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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2011.08853.pdf
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Citation

Sommer, O. E., Piazza, F., & Luitz, D. J. (2021). Many-body hierarchy of dissipative timescales in a quantum computer. Physical Review Research, 3(2): 023190. doi:10.1103/PhysRevResearch.3.023190.


Cite as: https://hdl.handle.net/21.11116/0000-0008-F8D1-4
Abstract
We show that current noisy quantum computers are ideal platforms for the simulation of quantum many-body dynamics in generic open systems. We demonstrate this using the IBM Quantum Computer as an experimental platform for confirming the theoretical prediction from Wang et al., [Phys. Rev. Lett. 124, 100604 (2020)] of an emergent hierarchy of relaxation timescales of many-body observables involving different numbers of qubits. Using different protocols, we leverage the intrinsic dissipation of the machine responsible for gate errors, to implement a quantum simulation of generic (i.e., structureless) local dissipative interactions.