Programmable quantum simulation of anharmonic dynamics

• URL: http://arxiv.org/abs/2603.04744v1
• Date: Thu, 05 Mar 2026 02:36:09 GMT
• Title: Programmable quantum simulation of anharmonic dynamics
• Authors: Cameron McGarry, Teerawat Chalermpusitarak, Kai Schwennicke, Frank Scuccimarra, Maverick J. Millican, Vassili G. Matsos, Christophe H. Valahu, Prachi Nagpal, Hon-Kwan Chan, Henry L. Nourse, Ivan Kassal, Ting Rei Tan,
• Abstract summary: Continuous-variable quantum simulators offer a route to simulating bosonic dynamics relevant to many branches of physics and chemistry.<n>We experimentally demonstrate programmable CV-DV quantum simulation of anharmonic dynamics in a range of double-well potentials, implemented in a trapped-ion system.
• Score: 0.0
• License: http://creativecommons.org/licenses/by-sa/4.0/
• Abstract: 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.

Related papers

• Variational quantum simulation of many-body dissipative dynamics on a superconducting quantum processor [10.739803066812476]
  We show a variational quantum algorithm capable of scalable simulation of non-unitary many-body dissipative dynamics.<n>Our work underlines the capability of noisy intermediate-scale quantum devices in simulating dissipative many-body dynamics.
  arXiv  Detail & Related papers  (2025-10-23T01:43:53Z)
• Error mitigation of shot-to-shot fluctuations in analog quantum simulators [46.54051337735883]
  We introduce an error mitigation technique that addresses shot-to-shot fluctuations in the parameters for the Hamiltonian governing the system dynamics.<n>We rigorously prove that amplifying this shot-to-shot noise and extrapolating to the zero-noise limit recovers noiseless results for realistic noise distributions.<n> Numerically, we predict a significant enhancement in the effective many-body coherence time for Rydberg atom arrays under realistic conditions.
  arXiv  Detail & Related papers  (2025-06-19T18:00:00Z)
• Constructive interference at the edge of quantum ergodic dynamics [116.94795372054381]
  We characterize ergodic dynamics using the second-order out-of-time-order correlators, OTOC$(2)$.<n>In contrast to dynamics without time reversal, OTOC$(2)$ are observed to remain sensitive to the underlying dynamics at long time scales.
  arXiv  Detail & Related papers  (2025-06-11T21:29:23Z)
• A Computational Framework for Simulations of Dissipative Non-Adiabatic Dynamics on Hybrid Oscillator-Qubit Quantum Devices [3.3480747994809894]
  We introduce a computational framework for simulating non-adiabatic vibronic dynamics on circuit quantum electrodynamics platforms.<n>We simulate energy transfer dynamics in a triad model of photosynthetic chromophores inspired by natural antenna systems.
  arXiv  Detail & Related papers  (2025-02-25T03:56:45Z)
• Simulating Vibrational Dynamics on Bosonic Quantum Devices [0.0]
  Bosonic quantum devices are emerging as a promising alternative to conventional qubit-based quantum devices.<n>We present a framework for digital quantum simulation of vibrational dynamics under anharmonic potentials on these bosonic devices.
  arXiv  Detail & Related papers  (2024-11-27T00:16:31Z)
• Nonlinear dynamical Casimir effect and Unruh entanglement in waveguide QED with parametrically modulated coupling [83.88591755871734]
  We study theoretically an array of two-level qubits moving relative to a one-dimensional waveguide. When the frequency of this motion approaches twice the qubit resonance frequency, it induces parametric generation of photons and excitation of the qubits. We develop a comprehensive general theoretical framework that incorporates both perturbative diagrammatic techniques and a rigorous master-equation approach.
  arXiv  Detail & Related papers  (2024-08-30T15:54:33Z)
• Simulating open quantum systems with giant atoms [0.0]
  We introduce a simulator for open quantum many-body systems based on giant atoms, i.e., atoms (possibly artificial) We first show that a simulator consisting of two giant atoms can simulate the dynamics of two coupled qubits. We demonstrate and analyze the robustness of these simulation results against noise affecting the giant atoms.
  arXiv  Detail & Related papers  (2024-06-19T16:31:42Z)
• Hybrid Stabilizer Matrix Product Operator [44.99833362998488]
  We introduce a novel hybrid approach combining tensor network methods with the stabilizer formalism to address the challenges of simulating many-body quantum systems. We demonstrate the effectiveness of our method through applications to random Clifford T-doped circuits and Random Clifford Floquet Dynamics.
  arXiv  Detail & Related papers  (2024-05-09T18:32:10Z)
• Variational quantum simulation using non-Gaussian continuous-variable systems [39.58317527488534]
  We present a continuous-variable variational quantum eigensolver compatible with state-of-the-art photonic technology. The framework we introduce allows us to compare discrete and continuous variable systems without introducing a truncation of the Hilbert space.
  arXiv  Detail & Related papers  (2023-10-24T15:20:07Z)
• Quantum emulation of the transient dynamics in the multistate Landau-Zener model [50.591267188664666]
  We study the transient dynamics in the multistate Landau-Zener model as a function of the Landau-Zener velocity. Our experiments pave the way for more complex simulations with qubits coupled to an engineered bosonic mode spectrum.
  arXiv  Detail & Related papers  (2022-11-26T15:04:11Z)
• Para-particle oscillator simulations on a trapped ion quantum computer [0.0]
  We report the digital quantum simulation of para-particles by mapping para-particle states to the state of a qubit register. We experimentally simulate the dynamics of para-fermions and para-bosons on a quantum computer.
  arXiv  Detail & Related papers  (2022-07-06T04:25:49Z)
• Quantum Markov Chain Monte Carlo with Digital Dissipative Dynamics on Quantum Computers [52.77024349608834]
  We develop a digital quantum algorithm that simulates interaction with an environment using a small number of ancilla qubits. We evaluate the algorithm by simulating thermal states of the transverse Ising model.
  arXiv  Detail & Related papers  (2021-03-04T18:21:00Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.