Related papers: Distant Entanglement Generation between Magnon and Superconducting Qubits in Magnon-Mediated Hybrid Systems

Distant Entanglement Generation between Magnon and Superconducting Qubits in Magnon-Mediated Hybrid Systems

URL: http://arxiv.org/abs/2601.01394v1
Date: Sun, 04 Jan 2026 06:10:39 GMT
Title: Distant Entanglement Generation between Magnon and Superconducting Qubits in Magnon-Mediated Hybrid Systems
Authors: Guosen Liu, Pei Pei,
Abstract summary: We propose an efficient two-stage protocol for generating distant entanglement in a magnon-mediated hybrid quantum system.<n>This integrated design reduces the physical component count while leveraging the inherent advantages of magnons.<n>Results establish the protocol as a scalable and practical building block for distributed quantum networks.
Score: 0.07366405857677225
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: We propose an efficient two-stage protocol for generating distant entanglement in a magnon-mediated hybrid quantum system, where magnons serve dual roles as both interaction mediators and qubits. This integrated design reduces the physical component count while leveraging the inherent advantages of magnons, such as their strong coupling via magnetic dipole interactions, low dissipation, and high integrability. In our setup, a superconducting resonator interfaces between a local superconducting qubit (SQ) and a local magnonic system (QM1), which is waveguide-coupled to a remote magnonic system (QM2). The protocol comprises two stages: (i) deterministic Bell-state generation between the SQ and QM1 using shortcuts to adiabaticity, and (ii) coherent state transfer to QM2 via engineered Hamiltonian dynamics. This adiabatic characteristic enhances robustness against environmental dissipation. Numerical simulations under realistic noise conditions confirm strong resilience to decoherence, achieving fidelity $F > 0.90$ and negativity $\mathcal{N}_2 > 0.40$. These results establish the protocol as a scalable and practical building block for distributed quantum networks.

Related papers

Loss Mechanisms in High-coherence Multimode Mechanical Resonators Coupled to Superconducting Circuits [34.554017586254346]
High-overtone bulk acoustic-wave resonators (HBARs) are promising, since they have shown very high quality factors with negligible dephasing.<n>We study the acoustic dissipation of HBAR resonators in cQAD systems and find that the defect density of the piezoelectric material and its interface with the bulk are limiting factors for the coherence.
arXiv Detail & Related papers (2026-02-25T17:04:50Z)
Simulation of topological superconductors and their competing orders using photon-mediated interactions [0.0]
We introduce a cavity QED quantum simulator that engineers competing chiral $p_x+ip_y$ and $d_x2-y2+id_xy$ orders.<n>The desired spatially inhomogeneous cavity-mediated couplings can be engineered in a 2D optical lattice using incommensurate cavity-lattice wavelengths naturally occurring in cavity QED systems.
arXiv Detail & Related papers (2025-12-19T18:46:17Z)
Coupling Magnons to an Opto-Electronic Parametric Oscillator [6.408545559187285]
We introduce a new, hybrid platform for investigating long-distance coupling and nonlinearity in coherent magnonic phenomena.<n>Our result lays out a new, hybrid platform for investigating long-distance coupling and nonlinearity in coherent magnonic phenomena.
arXiv Detail & Related papers (2025-10-01T20:18:49Z)
Phonon-Coupled Hole-Spin Qubits in High-Purity Germanium: Design and Modeling of a Scalable Architecture [0.0]
We present a design and modeling of a scalable quantum processor architecture utilizing hole-spin qubits defined in gate-controlled germanium (Ge) quantum dots.<n>The architecture exploits the strong, electrically tunable spin-orbit interactions intrinsic to hole states in Ge, integrated with high-quality phononic crystal cavities (PnCCs) to enable fully electrical qubit control and phonon-mediated coupling.
arXiv Detail & Related papers (2025-04-16T16:14:30Z)
Electron-Electron Interactions in Device Simulation via Non-equilibrium Green's Functions and the GW Approximation [71.63026504030766]
electron-electron (e-e) interactions must be explicitly incorporated in quantum transport simulation.<n>This study is the first one reporting large-scale atomistic quantum transport simulations of nano-devices under non-equilibrium conditions.
arXiv Detail & Related papers (2024-12-17T15:05:33Z)
Dissipative preparation and stabilization of many-body quantum states in a superconducting qutrit array [55.41644538483948]
We present and analyze a protocol for driven-dissipatively preparing and stabilizing a manifold of quantum manybody entangled states. We perform theoretical modeling of this platform via pulse-level simulations based on physical features of real devices. Our work shows the capacity of driven-dissipative superconducting cQED systems to host robust and self-corrected quantum manybody states.
arXiv Detail & Related papers (2023-03-21T18:02:47Z)
Topological Josephson parametric amplifier array: A proposal for directional, broadband, and low-noise amplification [39.58317527488534]
Low-noise microwave amplifiers are crucial for detecting weak signals in fields such as quantum technology and radio astronomy. We show that compact devices with few sites can achieve exceptional performance, with gains exceeding 20 dB over a bandwidth ranging from hundreds of MHz to GHz. The device also operates near the quantum noise limit and provides topological protection against up to 15% fabrication disorder.
arXiv Detail & Related papers (2022-07-27T18:07:20Z)
Unimon qubit [42.83899285555746]
Superconducting qubits are one of the most promising candidates to implement quantum computers. Here, we introduce and demonstrate a superconducting-qubit type, the unimon, which combines the desired properties of high non-linearity, full insensitivity to dc charge noise, insensitivity to flux noise, and a simple structure consisting only of a single Josephson junction in a resonator.
arXiv Detail & Related papers (2022-03-11T12:57:43Z)
Fast high-fidelity single-qubit gates for flip-flop qubits in silicon [68.8204255655161]
flip-flop qubit is encoded in the states with antiparallel donor-bound electron and donor nuclear spins in silicon. We study the multilevel system that is formed by the interacting electron and nuclear spins. We propose an optimal control scheme that produces fast and robust single-qubit gates in the presence of low-frequency noise.
arXiv Detail & Related papers (2021-01-27T18:37:30Z)
Nonlocal magnon entanglement generation in coupled hybrid cavity systems [8.63805579617966]
We investigate generation of macroscopic nonlocal entanglements between massive magnon-superconducting-circuit hybrid systems. Our discrete-variable qubit-like entanglement theory of magnons may lead to direct applications in various quantum information tasks.
arXiv Detail & Related papers (2020-06-11T00:48:36Z)
Universal non-adiabatic control of small-gap superconducting qubits [47.187609203210705]
We introduce a superconducting composite qubit formed from two capacitively coupled transmon qubits. We control this low-frequency CQB using solely baseband pulses, non-adiabatic transitions, and coherent Landau-Zener interference. This work demonstrates that universal non-adiabatic control of low-frequency qubits is feasible using solely baseband pulses.
arXiv Detail & Related papers (2020-03-29T22:48:34Z)
Energy transfer in $N$-component nanosystems enhanced by pulse-driven vibronic many-body entanglement [41.94295877935867]
We show that pulses of intermediate duration generate highly entangled vibronic states that spread multiple excitons -- and hence energy -- maximally within the system. The underlying pulse-generated vibronic entanglement increases in strength and robustness as $N$ increases.
arXiv Detail & Related papers (2017-08-10T17:49:17Z)

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