Quantum Simulation of SPAD in the Space Radiation Environment

• URL: http://arxiv.org/abs/2608.00040v1
• Date: Thu, 23 Jul 2026 06:42:54 GMT
• Title: Quantum Simulation of SPAD in the Space Radiation Environment
• Abstract summary: Single-Photon Avalanche Diodes (SPADs) are critical components of emerging quantum communication networks that detect single photons.<n>This paper simulates SPAD in a space radiation environment by introducing a quantum simulation framework.<n>The key characteristics, such as the efficiency, timing jitter, thermal dark counts, and afterpulsing & radiation effects, are obtained using quantum simulation of SPAD.
• Score: 0.0
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: Single-Photon Avalanche Diodes (SPADs) are critical components of emerging quantum communication networks that detect single photons. They are placed in satellites for long-distance communication and are susceptible to radiation-induced displacement damage in space. This degrades SPAD performance parameters, including reduced efficiency, increased thermal dark counts, damage to the Si crystal, and increased afterpulsing rate. This paper simulates SPAD in a space radiation environment by introducing a quantum simulation framework, modeling the SPAD detector as a three-level quantum system, ground state ($|g\rangle$), excited state ($|e\rangle$) and a trap state ($|t\rangle$). Furthermore, to model the photon as a quantum system, second quantization and Fock-space truncation are used. The interaction between the photon-SPAD closed system is simulated using the Jaynes-Cummings model, and the open-system dynamics is governed by the Lindblad master equation and Qiskit's gate-based noise channels. The key characteristics, such as the efficiency, timing jitter, thermal dark counts, and afterpulsing \& radiation effects, are obtained using quantum simulation of SPAD. This approach differs significantly from conventional TCAD simulations, which rely on semiclassical approximations that do not capture the discrete quantum statistics of single-photon interactions and the dynamics of trap states.

Related papers

• Far-field spatial coherence driven by lossy objects: first-principles approach unifying scattering of quantum light and thermal emission [51.56484100374058]
  We develop a first-principles framework based on the modified Langevin noise formalism to unify the scattering of quantum light and the intrinsic thermal emission of finite dissipative objects.<n>Applying this framework across optical regimes, we determine operational bounds for lossy quantum photonics.
  arXiv  Detail & Related papers  (2026-07-01T09:04:32Z)
• Digital Quantum Simulation of the Holstein-Primakoff Transformation on Noisy Qubits [40.8066152850216]
  We study the digital quantum simulation of bosonic modes on a cloud-based superconducting quantum processor.<n>We examine the interplay between algorithmic and hardware-induced errors to identify optimal simulation parameters.
  arXiv  Detail & Related papers  (2026-02-19T20:14:04Z)
• Towards City-Scale Quantum Timing: Wireless Synchronization via Quantum Hubs [2.3166494232465773]
  This paper presents a novel wireless quantum synchronization framework tailored for city-scale deployment.<n>A central quantum hub emits entangled photons, directing one toward a target device and the other toward a local reference unit.<n>The proposed architecture offers a low-power, infrastructure-free solution for secure timing in next-generation smart cities.
  arXiv  Detail & Related papers  (2025-12-23T23:02:47Z)
• Enhancing Quantum Diffusion Models with Pairwise Bell State Entanglement [35.436358464279785]
  This paper introduces a novel quantum diffusion model designed for Noisy Intermediate-Scale Quantum (NISQ) devices. By leveraging quantum entanglement and superposition, this approach advances quantum generative learning.
  arXiv  Detail & Related papers  (2024-11-24T20:14:57Z)
• Simulating quantum emitters in arbitrary photonic environments using FDTD: beyond the semi-classical regime [15.296048819273555]
  We propose a numerical algorithm that integrates quantum two-level systems (TLSs) into the finite-difference time-domain framework.<n>Our method, focusing on single-excitation states, employs a total field-incident field (TF-IF) technique to eliminate self-interactions.<n>The algorithm also successfully models complex phenomena such as resonant energy transfer, superradiance, and vacuum Rabi splitting.
  arXiv  Detail & Related papers  (2024-10-21T15:46:50Z)
• Engineering Si-Qubit MOSFETs: A Phase-Field Modeling Approach Integrating Quantum-Electrostatics at Cryogenic Temperatures [0.3015860973324597]
  This study employs advanced phase-field modeling to investigate Si-based qubits. We adopt a comprehensive modeling approach, utilizing full-wave treatment of the Schrodinger equation solutions, coupled with the Poisson equation at cryogenic temperatures.
  arXiv  Detail & Related papers  (2024-10-06T03:25:07Z)
• Room-temperature photonic quantum computing in integrated silicon photonics with germanium-silicon single-photon avalanche diodes [0.0]
  This paper proposes and analyzes 300 K waveguide-integrated germanium-silicon (GeSi) single-photon avalanche diodes (SPADs) High-performance quantum computing at room temperature is predicted for this PQC architecture.
  arXiv  Detail & Related papers  (2024-05-08T02:21:33Z)
• Coherent Control of an Optical Quantum Dot Using Phonons and Photons [5.1635749330879905]
  We describe unique features and advantages of optical two-level systems, or qubits, for optomechanics. The qubit state can be coherently controlled using both phonons and resonant or detuned photons. Time-correlated single-photon counting measurements reveal the control of QD population dynamics.
  arXiv  Detail & Related papers  (2024-04-02T16:25:35Z)
• Beyond-adiabatic Quantum Admittance of a Semiconductor Quantum Dot at High Frequencies: Rethinking Reflectometry as Polaron Dynamics [0.0]
  We develop a self-consistent quantum master equation formalism to obtain the admittance of a quantum dot tunnel-coupled to a charge reservoir. We describe two new photon-mediated regimes: Floquet broadening, determined by the dressing of the QD states, and broadening determined by photon loss in the system.
  arXiv  Detail & Related papers  (2023-07-31T14:46:43Z)
• High-throughput quantum photonic devices emitting indistinguishable photons in the telecom C-band [28.279056210896716]
  Single indistinguishable photons at telecom C-band wavelengths are essential for quantum networks and the future quantum internet. We demonstrate the high- throughput fabrication of quantum-photonic integrated devices operating at C-band wavelengths based on epitaxial semiconductor quantum dots. Further improvements in yield and coherence properties will pave the way for implementing single-photon non-linear devices and advanced quantum networks at telecom wavelengths.
  arXiv  Detail & Related papers  (2023-04-05T15:39:22Z)
• Simulation of Entanglement Generation between Absorptive Quantum Memories [56.24769206561207]
  We use the open-source Simulator of QUantum Network Communication (SeQUeNCe), developed by our team, to simulate entanglement generation between two atomic frequency comb (AFC) absorptive quantum memories. We realize the representation of photonic quantum states within truncated Fock spaces in SeQUeNCe. We observe varying fidelity with SPDC source mean photon number, and varying entanglement generation rate with both mean photon number and memory mode number.
  arXiv  Detail & Related papers  (2022-12-17T05:51:17Z)
• Protecting the quantum interference of cat states by phase-space compression [45.82374977939355]
  Cat states with their unique phase-space interference properties are ideal candidates for understanding quantum mechanics. They are highly susceptible to photon loss, which inevitably diminishes their quantum non-Gaussian features. Here, we protect these non-Gaussian features by compressing the phase-space distribution of a cat state.
  arXiv  Detail & Related papers  (2022-12-02T16:06:40Z)
• Tunable photon-mediated interactions between spin-1 systems [68.8204255655161]
  We show how to harness multi-level emitters with several optical transitions to engineer photon-mediated interactions between effective spin-1 systems. Our results expand the quantum simulation toolbox available in cavity QED and quantum nanophotonic setups.
  arXiv  Detail & Related papers  (2022-06-03T14:52:34Z)

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.