Quantum state transfer on a scalable network under unital and non-unital noise

• URL: http://arxiv.org/abs/2604.11620v1
• Date: Mon, 13 Apr 2026 15:25:28 GMT
• Title: Quantum state transfer on a scalable network under unital and non-unital noise
• Abstract summary: We investigate quantum state transfer on a class of bipartite graphs, namely the butterfly graphs, within the framework of discrete-time quantum walks.<n>Our analysis demonstrates that state transfer occurs across different butterfly graphs, thereby extending the known families of networks that support high-fidelity quantum state transfer.
• Score: 1.6449390849183356
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: We investigate quantum state transfer on a class of bipartite graphs, namely the butterfly graphs, within the framework of discrete-time quantum walks. These graphs facilitate the construction of scalable quantum networks that enable communication between a sender and a receiver via perfect state transfer. Our analysis demonstrates that state transfer occurs across different butterfly graphs, thereby extending the known families of networks that support high-fidelity quantum state transfer. In addition to the ideal noiseless dynamics, we further investigate the robustness of quantum state transfer in the presence of non-Markovian environmental noise, specifically, random telegraph noise, modified Ornstein-Uhlenbeck noise, which are examples of unital noise and non-Markovian amplitude damping noise, non-unital noise. These noise models capture different types of system-environment interactions and memory effects that influence the coherence of the quantum walk. These findings contribute to the theoretical understanding of how butterfly graph constructions influence quantum transport phenomena.

Related papers

• Topology from Decoherence [39.407739937584104]
  We show that decoherence can induce topological phenomena.<n>We demonstrate this in a lattice system subject to environment-induced dephasing.<n>Our results establish correlated quantum noise as a route to topology in open many-body systems.
  arXiv  Detail & Related papers  (2026-07-08T18:00:04Z)
• Characterizing Noise Effects on Multipartite Entanglement via Phase-Space Visualization [0.0]
  This paper investigates the behavior of two fundamental types of multipartite entangled states, namely GHZ(3) and W(3) states.<n>The Uhlmann-Jozsa fidelity is taken to be the quantitative measure to show the overall degradation of the quantum states.<n>We employ the spin Wigner function using equal-angle projection to reveal the phase-space characteristics and nonclassical signatures of three-qubit entangled states.
  arXiv  Detail & Related papers  (2026-03-06T06:32:56Z)
• Mechanically mediated optical-microwave quantum state transfer by feedback [0.0]
  State transfer between light and microwaves is a key challenge in quantum networks.<n>We show that continuous optical-to-microwave quantum state transfer is possible using measurement-based feedback.<n>We also show that quantum-compatible noise performance is within reach of current experimental capabilities.
  arXiv  Detail & Related papers  (2025-12-05T06:25:35Z)
• Realization of Trapped Ion Dynamics in the Strong-Field Regime and Non-Markovianity [33.781064984238775]
  We experimentally investigate the dynamics of a trapped ion where the Rabi frequency (Omega) approaches the vibrational mode frequency (nu)<n>Using quantum state tomography, we reconstruct the density matrix and track its evolution to assess non-Markovianity.<n>Our findings establish a pathway for using trapped-ion platforms to investigate non-Markovianity, coherent control, and the fundamental behavior of open quantum systems in extreme regimes.
  arXiv  Detail & Related papers  (2025-10-23T11:25:09Z)
• Quantum state-transfer and periodicity in discrete-time quantum walk under non-Markovian noise [2.867517731896504]
  In quantum communication, quantum state transfer from one location to another in a quantum network plays a prominent role.<n>We investigate the consequences of non-Markovian quantum noises on periodicity and state transfer induced by a quantum walk on graphs.
  arXiv  Detail & Related papers  (2025-06-30T17:18:33Z)
• Crosstalk-Resilient Quantum MIMO for Scalable Quantum Communications [40.44880302154388]
  Crosstalk arises when physically coupled quantum modes interfere, degrading signal fidelity.<n>We propose a mitigation strategy based on encoding discrete-variable quantum information into continuous-variable modes.<n>We prove the existence of a gauge-fixing decoder enabling recovery of the logical information.
  arXiv  Detail & Related papers  (2025-06-26T18:40:26Z)
• Acoustic phonon phase gates with number-resolving phonon detection [36.29277627484587]
  Itinerant phonons in quantum acoustics, combined with superconducting qubits, offer a compelling alternative to the quantum optics approach.<n>We implement phonon phase control using the frequency-dependent scattering of phonon states from a superconducting transmon qubit.<n>The acoustic interferometer used to measure the resulting phonon phase achieves a noise-floor-limited Hong-Ou-Mandel interference visibility of 98.1%.
  arXiv  Detail & Related papers  (2025-03-05T20:56:35Z)
• Quantum Skyrmions in general quantum channels: topological noise rejection and the discretization of quantum information [0.0]
  The topology of a pure state of two entangled photons is leveraged to provide a discretization of quantum information. We develop a noise model that exploits the specific form of such topological wave functions. We show that noise affecting both photons can be recast as a position-dependent perturbation affecting only the photon in the polarization state.
  arXiv  Detail & Related papers  (2024-10-31T10:15:52Z)
• State Transfer in Noisy Modular Quantum Networks [0.9217021281095907]
  We consider transfer of Gaussian states over noisy quantum networks with modular structure. We compare two noise models, affecting either the network topology or the network constituents. Our results show that in general, modular networks are more robust to noise than monolithic ones.
  arXiv  Detail & Related papers  (2024-07-02T10:39:49Z)
• Topological rejection of noise by quantum skyrmions [0.0]
  We show that quantum skyrmions and their nonlocal topological observables remain resilient to noise even as typical entanglement witnesses and measures of the state decay. This allows us to introduce the notion of digitization of quantum information based on our new discrete topological quantum observables.
  arXiv  Detail & Related papers  (2024-03-04T13:36:40Z)
• Quantum error mitigation for Fourier moment computation [49.1574468325115]
  This paper focuses on the computation of Fourier moments within the context of a nuclear effective field theory on superconducting quantum hardware. The study integrates echo verification and noise renormalization into Hadamard tests using control reversal gates. The analysis, conducted using noise models, reveals a significant reduction in noise strength by two orders of magnitude.
  arXiv  Detail & Related papers  (2024-01-23T19:10:24Z)
• QuanGCN: Noise-Adaptive Training for Robust Quantum Graph Convolutional Networks [124.7972093110732]
  We propose quantum graph convolutional networks (QuanGCN), which learns the local message passing among nodes with the sequence of crossing-gate quantum operations. To mitigate the inherent noises from modern quantum devices, we apply sparse constraint to sparsify the nodes' connections. Our QuanGCN is functionally comparable or even superior than the classical algorithms on several benchmark graph datasets.
  arXiv  Detail & Related papers  (2022-11-09T21:43:16Z)
• Learning Noise via Dynamical Decoupling of Entangled Qubits [49.38020717064383]
  Noise in entangled quantum systems is difficult to characterize due to many-body effects involving multiple degrees of freedom. We develop and apply multi-qubit dynamical decoupling sequences that characterize noise that occurs during two-qubit gates.
  arXiv  Detail & Related papers  (2022-01-26T20:22:38Z)

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.