Accurate and Scalable Simulation of Cavity-Based Networks in Modular Quantum Architectures

Fuente: arXiv
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Autores principales: Rached, Sahar Ben, Sun, Zezhou, Long, Guilu, Rodrigo, Santiago, Almudéver, Carmen G., Alarcón, Eduard, Abadal, Sergi
Formato: Preprint
Publicado: 2025
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author Rached, Sahar Ben
Sun, Zezhou
Long, Guilu
Rodrigo, Santiago
Almudéver, Carmen G.
Alarcón, Eduard
Abadal, Sergi
author_facet Rached, Sahar Ben
Sun, Zezhou
Long, Guilu
Rodrigo, Santiago
Almudéver, Carmen G.
Alarcón, Eduard
Abadal, Sergi
contents Cavity-mediated interconnects are a promising platform for scaling modular quantum computers by enabling high-fidelity inter-chip quantum state transmission and entanglement generation. In this work, we first model the dynamics of deterministic inter-chip quantum state transfer using the Stimulated Raman Adiabatic Passage (STIRAP) protocol, analyzing fidelity loss mechanisms under experimentally achievable qubit-cavity coupling and decoherence parameters. We then extend the NetSquid simulator, typically used for simulating long-range quantum communication networks, to support cavity-based communication channels for mediating inter-chip state transfer and entanglement generation. We model cavities as amplitude damping channels parameterized by physical system characteristics; cavity decay rate k and qubit-cavity coupling strength g, and analyze the impact of intrinsic qubit decoherence factors dictated by T1 and T2 times. Our simulations accurately represent the system's dynamics in both strong and weak coupling regimes, and identify critical trade-offs between fidelity, latency, and noise factors. The proposed framework supports faithful modeling and scalable simulation of modular architectures, and provides insights into design optimization for practical quantum network implementations.
format Preprint
id arxiv_https___arxiv_org_abs_2508_13896
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Accurate and Scalable Simulation of Cavity-Based Networks in Modular Quantum Architectures
Rached, Sahar Ben
Sun, Zezhou
Long, Guilu
Rodrigo, Santiago
Almudéver, Carmen G.
Alarcón, Eduard
Abadal, Sergi
Quantum Physics
Cavity-mediated interconnects are a promising platform for scaling modular quantum computers by enabling high-fidelity inter-chip quantum state transmission and entanglement generation. In this work, we first model the dynamics of deterministic inter-chip quantum state transfer using the Stimulated Raman Adiabatic Passage (STIRAP) protocol, analyzing fidelity loss mechanisms under experimentally achievable qubit-cavity coupling and decoherence parameters. We then extend the NetSquid simulator, typically used for simulating long-range quantum communication networks, to support cavity-based communication channels for mediating inter-chip state transfer and entanglement generation. We model cavities as amplitude damping channels parameterized by physical system characteristics; cavity decay rate k and qubit-cavity coupling strength g, and analyze the impact of intrinsic qubit decoherence factors dictated by T1 and T2 times. Our simulations accurately represent the system's dynamics in both strong and weak coupling regimes, and identify critical trade-offs between fidelity, latency, and noise factors. The proposed framework supports faithful modeling and scalable simulation of modular architectures, and provides insights into design optimization for practical quantum network implementations.
title Accurate and Scalable Simulation of Cavity-Based Networks in Modular Quantum Architectures
topic Quantum Physics
url https://arxiv.org/abs/2508.13896