Realizing Bloch Dynamics in a Low-Cost Electrically Driven Acoustic Two-Level System

• URL: http://arxiv.org/abs/2505.21157v1
• Date: Tue, 27 May 2025 13:12:54 GMT
• Title: Realizing Bloch Dynamics in a Low-Cost Electrically Driven Acoustic Two-Level System
• Authors: Xiao-Meng Zhang, Guang-Chen He, Zhao-Xian Chen, Ze-Guo Chen, Ming-Hui Lu, Yan-Feng Chen,
• Abstract summary: Quantum bits (qubits) can exist in coherent superpositions of the ground and excited states.<n>We implement Bloch dynamics in a classical platform by constructing a tunable acoustic two-level system.<n>Our results bridge coherent Bloch dynamics with classical wave control, revealing a versatile platform for exploring quantum-inspired physics.
• Score: 0.26388783516590225
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: Unlike classical bits that can only occupy one of two discrete states, quantum bits (qubits) can exist in arbitrary coherent superpositions of the ground and excited states. This fundamental distinction grants qubits enhanced capabilities for information storage and processing. The Bloch sphere provides an intuitive and powerful geometric framework for visualizing, characterizing, and controlling the dynamical evolution of a qubit under external driving fields. By mapping the state evolution onto the Bloch sphere, processes such as spin flips and phase accumulation can be vividly represented as trajectories, enabling direct insight into coherent control mechanisms. Here, we implement Bloch dynamics in a classical platform by constructing a tunable acoustic two-level system based on high-quality-factor electro-acoustic coupled cavities. Using programmable spatiotemporal external field modulation, we demonstrate full Bloch sphere control through classical analogs of quantum phenomena, including Rabi oscillations, Floquet dynamics, Ramsey interference, and spin echo sequences. Our results bridge coherent Bloch dynamics with classical wave control, revealing a versatile experimental platform for exploring quantum-inspired physics. Furthermore, the system exhibits exceptional capabilities for precision transient acoustic field shaping, enabled by high-fidelity pulse-driven modulation.

Related papers

• 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)
• Quantum Engineering of Qudits with Interpretable Machine Learning [0.0]
  We present a machine-learning-based graybox framework for the control and noise characterization of qudits with arbitrary dimension.<n>We also introduce a local analytic expansion that enables interpretable modelling of the noise dynamics.
  arXiv  Detail & Related papers  (2025-06-16T03:46:23Z)
• 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)
• Universality of stochastic control of quantum chaos with measurement and feedback [0.0]
  We investigate quantum dynamics in an unstable fixed point subjected to control.<n>Recent studies reveal that this interplay underlies a family of measurement- and feedback-driven dynamical quantum phase transitions.<n>By combining numerical simulations, a semiclassical Fokker-Planck analysis, and direct spectra of the quantum channel, we map out the control transition.
  arXiv  Detail & Related papers  (2025-06-11T18:00:01Z)
• Topological Insights from State Manipulation in a Classical Elastic System [0.0]
  We show controlled accumulation of the Berry phase in a two-level elastic bit, achieved by manipulating coupled granules with external drivers.<n>A key achievement is the calculation of the Berry phase for various system states, revealing insights into the system's topological nature.
  arXiv  Detail & Related papers  (2024-07-10T04:16:51Z)
• Dynamics of quantum discommensurations in the Frenkel-Kontorova chain [30.733286944793527]
  We study how imperfections present in concrete implementations of the Frenkel-Kontorova model affect the properties of topological defects. We analyze the propagation and scattering of solitons, examining the role of quantum fluctuations and imperfections in influencing these processes.
  arXiv  Detail & Related papers  (2024-01-23T10:12:45Z)
• Statistical and dynamical aspects of quantum chaos in a kicked Bose-Hubbard dimer [7.737485570054659]
  We study a kicked two-site Bose-Hubbard model (Bose-Hubbard dimer) with the on-site potential difference being periodically modulated. By analyzing spectral statistics of Floquet operator, we unveil that the system undergoes a transition from regularity to chaos with increasing the interaction strength. The semiclassical analysis also suggests that the system in chaotic regime may display different dynamical behavior depending on the choice of initial states.
  arXiv  Detail & Related papers  (2023-12-13T14:10:54Z)
• 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)
• Modelling assisted tunneling on the Bloch sphere using the Quantum Composer [0.0]
  The Bloch sphere representation is a geometric model for all possible quantum states of a two-level system. As explicit application, we consider the time dynamics of a particle in a double-well potential. Driven by a collaborative approach we call educator-developer dialogue, an updated version of the software Quantum Composer is presented.
  arXiv  Detail & Related papers  (2022-12-09T13:27:51Z)
• 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)
• Enhancement of quantum correlations and geometric phase for a driven bipartite quantum system in a structured environment [77.34726150561087]
  We study the role of driving in an initial maximally entangled state evolving under a structured environment. This knowledge can aid the search for physical setups that best retain quantum properties under dissipative dynamics.
  arXiv  Detail & Related papers  (2021-03-18T21:11:37Z)
• Bloch-Landau-Zener dynamics induced by a synthetic field in a photonic quantum walk [52.77024349608834]
  We realize a photonic quantum walk in the presence of a synthetic gauge field. We investigate intriguing system dynamics characterized by the interplay between Bloch oscillations and Landau-Zener transitions.
  arXiv  Detail & Related papers  (2020-11-11T16:35:41Z)
• Entanglement generation via power-of-SWAP operations between dynamic electron-spin qubits [62.997667081978825]
  Surface acoustic waves (SAWs) can create moving quantum dots in piezoelectric materials. We show how electron-spin qubits located on dynamic quantum dots can be entangled.
  arXiv  Detail & Related papers  (2020-01-15T19:00:01Z)

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.