Related papers: Quantum Simulation of Collective Neutrino Oscillations in Dense Neutrino Environment

Quantum Simulation of Collective Neutrino Oscillations in Dense Neutrino Environment

URL: http://arxiv.org/abs/2508.11610v1
Date: Fri, 15 Aug 2025 17:21:18 GMT
Title: Quantum Simulation of Collective Neutrino Oscillations in Dense Neutrino Environment
Authors: Shvetaank Tripathi, Sandeep Joshi, Garima Rajpoot, Prashant Shukla,
Abstract summary: We present a study of collective neutrino oscillations by simulating such a system on a noisy quantum simulator.<n>We compute the neutrino state for a system of two- and three-neutrinos onto qubits.<n>We present quantum circuits to evaluate the concurrence as a measure of entanglement between the neutrinos.
Score: 0.8388591755871735
License: http://creativecommons.org/licenses/by/4.0/
Abstract: Inside dense neutrino gases, such as neutron star mergers or core-collapse supernovae, collective neutrino effects cause the transformation of one neutrino flavour into another. Due to strong neutrino self-interactions in these environments, there is prevalence of flavour swapping. Considering these environments to be isotropic and homogeneous, we present a study of collective neutrino oscillations by simulating such a system on a noisy quantum simulator (Qiskit AerSimulator) and a quantum processor (ibm\_brisbane). We model the effective Hamiltonian governing neutrino interactions and by applying the Trotter-Suzuki approximation, decompose it into a tractable form suitable for quantum circuit implementation of the time-evolution propagator. Encoding the neutrino state for a system of two- and three-neutrinos onto qubits, we compute the time evolution of the inversion probability relative to the initial product state. Furthermore, we present quantum circuits to evaluate the concurrence as a measure of entanglement between the neutrinos.

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