Programmable quantum simulation of anharmonic dynamics

Fuente: arXiv
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Autores principales: McGarry, Cameron, Chalermpusitarak, Teerawat, Schwennicke, Kai, Scuccimarra, Frank, Millican, Maverick J., Matsos, Vassili G., Valahu, Christophe H., Nagpal, Prachi, Chan, Hon-Kwan, Nourse, Henry L., Kassal, Ivan, Tan, Ting Rei
Formato: Preprint
Publicado: 2026
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author McGarry, Cameron
Chalermpusitarak, Teerawat
Schwennicke, Kai
Scuccimarra, Frank
Millican, Maverick J.
Matsos, Vassili G.
Valahu, Christophe H.
Nagpal, Prachi
Chan, Hon-Kwan
Nourse, Henry L.
Kassal, Ivan
Tan, Ting Rei
author_facet McGarry, Cameron
Chalermpusitarak, Teerawat
Schwennicke, Kai
Scuccimarra, Frank
Millican, Maverick J.
Matsos, Vassili G.
Valahu, Christophe H.
Nagpal, Prachi
Chan, Hon-Kwan
Nourse, Henry L.
Kassal, Ivan
Tan, Ting Rei
contents Continuous-variable-discrete-variable (CV-DV) quantum simulators offer a natural route to simulating bosonic dynamics relevant to many branches of physics and chemistry. However, programmable simulation of arbitrary dynamics is an outstanding challenge. In particular, simulating anharmonic dynamics, which is ubiquitous across the physical sciences, is challenging due to the highly harmonic nature of oscillators used in CV-DV simulators. Here, we experimentally demonstrate programmable CV-DV quantum simulation of anharmonic dynamics in a range of double-well potentials, implemented in a trapped-ion system. We synthesise the time-evolution operators using a bosonic-quantum-signal-processing subroutine, which allows the potential to be tuned between experiments by controlling classical experimental parameters. We observe coherent dynamics in various double-well potentials, where a wavepacket tunnels through the potential barrier, and we suppress this effect by programmatically introducing asymmetry.
format Preprint
id arxiv_https___arxiv_org_abs_2603_04744
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Programmable quantum simulation of anharmonic dynamics
McGarry, Cameron
Chalermpusitarak, Teerawat
Schwennicke, Kai
Scuccimarra, Frank
Millican, Maverick J.
Matsos, Vassili G.
Valahu, Christophe H.
Nagpal, Prachi
Chan, Hon-Kwan
Nourse, Henry L.
Kassal, Ivan
Tan, Ting Rei
Quantum Physics
Continuous-variable-discrete-variable (CV-DV) quantum simulators offer a natural route to simulating bosonic dynamics relevant to many branches of physics and chemistry. However, programmable simulation of arbitrary dynamics is an outstanding challenge. In particular, simulating anharmonic dynamics, which is ubiquitous across the physical sciences, is challenging due to the highly harmonic nature of oscillators used in CV-DV simulators. Here, we experimentally demonstrate programmable CV-DV quantum simulation of anharmonic dynamics in a range of double-well potentials, implemented in a trapped-ion system. We synthesise the time-evolution operators using a bosonic-quantum-signal-processing subroutine, which allows the potential to be tuned between experiments by controlling classical experimental parameters. We observe coherent dynamics in various double-well potentials, where a wavepacket tunnels through the potential barrier, and we suppress this effect by programmatically introducing asymmetry.
title Programmable quantum simulation of anharmonic dynamics
topic Quantum Physics
url https://arxiv.org/abs/2603.04744