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DOE OSTI · 2217108

Collective neutrino oscillations on a quantum computer with hybrid quantum-classical algorithm

Siwach, Pooja·Harrison, Kaytlin·Balantekin, A. Baha
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Abstract

We simulate the time evolution of collective neutrino oscillations in two-flavor settings on a quantum computer. We explore the generalization of Trotter-Suzuki approximation to time-dependent Hamiltonian dynamics. The trotterization steps are further optimized using the Cartan decomposition of two-qubit unitary gates U ϵ SU(4) in the minimum number of controlled-NOT (CNOT) gates making the algorithm more resilient to the hardware noise. As a result, a more efficient hybrid quantum-classical algorithm is also explored to solve the problem on noisy intermediate-scale quantum devices.

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS79 ASTRONOMY AND ASTROPHYSICSastrophysical & cosmological simulationsneutrino oscillationsneutrinosnovae & supernovaequantum algorithms & computationquantum computationquantum simulation

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Siwach, Pooja, Harrison, Kaytlin, Balantekin, A. Baha. 2023-10-27. Collective neutrino oscillations on a quantum computer with hybrid quantum-classical algorithm. https://doi.org/10.1103/physrevd.108.083039

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