arXiv subjects

Xin Yue Yu

Publications and source records attributed to Xin Yue Yu.

3 recordsLinked to original sources

arXiv2026

Quantum Simulation of Collective Neutrino Oscillations using Dicke States

In dense neutrino gases, which exist for instance in supernovae, the flavour states of different neutrinos may become entangled with one another. The theoretical description of such systems may therefore call for simulations on a quantum computer. Existing quantum simulations of simple toy systems are not optimal in the sense that they do not fully exploit the symmetries of the system. Here, we propose a new class of qubit-efficient algorithms based on Dicke states and the $su(2)$ spin algebra. We demonstrate the excellent performance of these algorithms both on classical and on quantum hardware.

quant-ph↗

arXiv2025

Effects of tau-neutrino detection on non-standard interactions at DUNE with a short discussion on the nature of neutrino mixing

In this paper, we investigate the effects of $\nu_\tau$ and $\bar{\nu}_\tau$ detection at the DUNE far detector on the experiment's sensitivity to Non-Standard Interactions (NSI) in neutrino propagation. We show that the strongest observable NSI effect in the $\nu_\tau$ and $\bar{\nu}_\tau$ appearance probabilities arises from $\epsilon_{\mu\tau}$. We have studied the hierarchy sensitivity, CP violation sensitivity and octant sensitivity of DUNE from $\nu_\tau$ and $\bar{\nu}_\tau$ appearance channels in presence of NSI. We have also studied the detection sensitivity of NSI phases and the future constaints on NSI parameters from the tau neutrino appearance channels in DUNE. Additionally, we examine the role of $\nu_\tau$ detection in constraining the unitary nature of the PMNS matrix. These studies emphasize the importance of incorporating $\nu_\tau$ detection in long-baseline neutrino experiments such as DUNE.

hep-ph↗

arXiv2024

Update on non-unitary mixing in the recent NO$\nu$A and T2K data

In this paper, we have tested the non-unitary mixing hypothesis with the latest data from NO$\nu$A and T2K experiments. We have also analysed their combined data. We have provided the best-fit values of the standard and non standard parameters after the analysis. $90\%$ limits on the non-unitary mixing parameters have also been provided. The constraints on unitary violation is stronger, compared to the constraints obtained from previous data from NO$\nu$A and T2K. The tension between NO$\nu$A and T2K at the $1\,\sigma$ for normal mass hierarchy can be reduced for non-unitary mixing due to $\alpha_{10}$, albeit for a value of $|\alpha_{10}|$ larger than the present global $90\%$ limit. Additionally a study of the future sensitivity of NO$\nu$A, T2K and DUNE has been provided.

hep-ph↗