Quantum Complexity in Nuclear Scattering and Fission Dynamics

• URL: http://arxiv.org/abs/2609.03240v1
• Date: Thu, 03 Sep 2026 00:46:17 GMT
• Title: Quantum Complexity in Nuclear Scattering and Fission Dynamics
• Abstract summary: Quantum computers promise advantages for simulating strongly correlated quantum many-body systems, like atomic nuclei, that are beyond the reach of classical computers.<n>We investigate the time-evolution of two key indicators of quantum complexity, bipartite entanglement entropy and non-local magic, in nuclear reaction dynamics.<n>The presence of significant non-local magic and entanglement in both cases strongly indicate that quantum computers would provide substantial advantages for accurately simulating nuclear reaction dynamics.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Quantum computers promise advantages for simulating strongly correlated quantum many-body systems, like atomic nuclei, that are beyond the reach of classical computers. Realizing this potential requires understanding the quantum complexity structure of the target problem. We investigate the time-evolution of two key indicators of quantum complexity, bipartite entanglement entropy and non-local magic (non-stabilizerness), in nuclear reaction dynamics. We analyze two representative dynamical processes: scattering in a one-dimensional model of strongly interacting fermions governed by the Negele potential, and a realistic simulation of $^{240}$Pu fission within time-dependent Hartree-Fock-Bogoliubov (TDHFB) theory. In the former case, we find that interactions dynamically generate both entanglement and non-local magic, leaving persistent signatures of quantum complexity in the outgoing states. In the latter, we observe that substantial quantum complexity survives in the spatial bipartition of daughter fragments well beyond scission. The presence of significant non-local magic and entanglement in both cases strongly indicate that quantum computers would provide substantial advantages for accurately simulating nuclear reaction dynamics.

Related papers

• Error-resilient Reversal of Quantum Chaotic Dynamics Enabled by Scramblons [16.71116343065157]
  arrow of time in quantum many-body systems stems from Hamiltonian evolution to scramble quantum information and increase entanglement.<n>We study the structure of quantum information scrambling and chaotic dynamics.<n>Our results push the fundamental limits of dynamical revers of complex quantum systems.
  arXiv  Detail & Related papers  (2025-06-24T18:00:05Z)
• Are Molecules Magical? Non-Stabilizerness in Molecular Bonding [50.24983453990065]
  Isolated atoms as well as molecules at equilibrium are presumed to be simple from the point of view of quantum computational complexity.<n>We show that the process of chemical bond formation is accompanied by a marked increase in the quantum complexity of the electronic ground state.
  arXiv  Detail & Related papers  (2025-04-09T08:14:27Z)
• Simulation of open quantum systems on universal quantum computers [15.876768787615179]
  We present an innovative and scalable method to simulate open quantum systems using quantum computers.<n>We define an adjoint density matrix as a counterpart of the true density matrix, which reduces to a mixed-unitary quantum channel.<n>Some long-time properties like steady states and the thermal equilibrium can also be investigated as the adjoint density matrix.
  arXiv  Detail & Related papers  (2024-05-31T09:07:27Z)
• Nonadiabatic nuclear-electron dynamics: a quantum computing approach [0.0]
  We propose a quantum algorithm for the simulation of the time-evolution of molecular systems in the second quantization framework. We show how the entanglement between the electronic and nuclear degrees of freedom can persist over long times if electrons are not adiabatically following the nuclear displacement. The proposed quantum algorithm may become a valid candidate for the study of electron-nuclear quantum phenomena when sufficiently powerful quantum computers become available.
  arXiv  Detail & Related papers  (2023-06-02T16:44:22Z)
• Universality of critical dynamics with finite entanglement [68.8204255655161]
  We study how low-energy dynamics of quantum systems near criticality are modified by finite entanglement. Our result establishes the precise role played by entanglement in time-dependent critical phenomena.
  arXiv  Detail & Related papers  (2023-01-23T19:23:54Z)
• Trapped-Ion Quantum Simulation of Collective Neutrino Oscillations [55.41644538483948]
  We study strategies to simulate the coherent collective oscillations of a system of N neutrinos in the two-flavor approximation using quantum computation. We find that the gate complexity using second order Trotter- Suzuki formulae scales better with system size than with other decomposition methods such as Quantum Signal Processing.
  arXiv  Detail & Related papers  (2022-07-07T09:39:40Z)
• Simulation of Collective Neutrino Oscillations on a Quantum Computer [117.44028458220427]
  We present the first simulation of a small system of interacting neutrinos using current generation quantum devices. We introduce a strategy to overcome limitations in the natural connectivity of the qubits and use it to track the evolution of entanglement in real-time.
  arXiv  Detail & Related papers  (2021-02-24T20:51:25Z)
• Information Scrambling in Computationally Complex Quantum Circuits [56.22772134614514]
  We experimentally investigate the dynamics of quantum scrambling on a 53-qubit quantum processor. We show that while operator spreading is captured by an efficient classical model, operator entanglement requires exponentially scaled computational resources to simulate.
  arXiv  Detail & Related papers  (2021-01-21T22:18:49Z)
• Stark many-body localization on a superconducting quantum processor [10.67740744008533]
  We build a quantum device composed of thirty-two superconducting qubits, faithfully reproducing the relaxation dynamics of a non-integrable spin model. Our results describe the real-time evolution at sizes that surpass what is currently attainable by exact simulations in classical computers.
  arXiv  Detail & Related papers  (2020-11-27T18:37:01Z)
• Quantum many-body attractors [0.0]
  Complex dynamics when occurring autonomously, i.e. without external driving, is usually associated with everyday length scales and classical physics.<n>Quantum coherent dynamics is assumed to be either simple periodic oscillation in particular when autonomous, e.g. spin precession, or random quantum fluctuations.<n>We give an example of a emphspin lace model structurally similar to magnetic azurite and certain recently experimentally realized large single-molecular magnets with long coherence times.
  arXiv  Detail & Related papers  (2020-08-25T16:52:47Z)
• Quantum Non-equilibrium Many-Body Spin-Photon Systems [91.3755431537592]
  dissertation concerns the quantum dynamics of strongly-correlated quantum systems in out-of-equilibrium states. Our main results can be summarized in three parts: Signature of Critical Dynamics, Driven Dicke Model as a Test-bed of Ultra-Strong Coupling, and Beyond the Kibble-Zurek Mechanism.
  arXiv  Detail & Related papers  (2020-07-23T19:05:56Z)

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.