Matches in SemOpenAlex for { <https://semopenalex.org/work/W4307281054> ?p ?o ?g. }
- W4307281054 abstract "We present a holographic quantum simulation algorithm to variationally prepare thermal states of $d$-dimensional interacting quantum many-body systems, using only enough hardware qubits to represent a $(densuremath{-}1)$-dimensional cross section. This technique implements the thermal state by approximately unraveling the quantum matrix-product density operator (qMPDO) into a stochastic mixture of quantum matrix-product states (sto-qMPS). The parameters of the quantum circuits generating the qMPS and of the probability distribution generating the stochastic mixture are determined through a variational optimization procedure. We demonstrate a small-scale proof-of-principle demonstration of this technique on Quantinuum's trapped-ion quantum processor to simulate thermal properties of correlated spin chains over a wide temperature range using only a single pair of hardware qubits. Then, through classical simulations, we explore the representational power of two versions of sto-qMPS ansatzes for larger and deeper circuits and establish empirical relationships between the circuit resources and the accuracy of the variational free energy." @default.
- W4307281054 created "2022-10-31" @default.
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- W4307281054 date "2022-10-24" @default.
- W4307281054 modified "2023-10-01" @default.
- W4307281054 title "Qubit-efficient simulation of thermal states with quantum tensor networks" @default.
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- W4307281054 doi "https://doi.org/10.1103/physrevb.106.165126" @default.
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