Entanglement Signatures of CPT Violation in Neutrino Oscillations
Fuente:
arXiv
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Preprint |
| Published: |
2026
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866910087487946752 |
|---|---|
| author | Koranga, Bipin Singh Farooq, Baktiar Wasir |
| author_facet | Koranga, Bipin Singh Farooq, Baktiar Wasir |
| contents | We investigate the joint influence of CPT violation and quantum-gravity-induced Planck-scale corrections on the entanglement entropy of two-flavor neutrino oscillations. Building on the CPT-violating neutrino mass matrix arising from flavour-blind Planck-scale physics, we compute the von Neumann entanglement entropy separately for neutrinos and anti-neutrinos and demonstrate that CPT violation directly imprints an observable asymmetry in their entropy profiles. For a degenerate mass spectrum (m_ν\simeq2\,\mathrm{eV}), non-zero Majorana phases a_{1} and a_{2} are required to reproduce the solar KamLAND discrepancy; these same phases control the amplitude of the entropy asymmetry. Our results establish that entanglement entropy provides a sensitive and novel probe of CPT-violating Planck-scale physics within neutrino phenomenology. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_28841 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Entanglement Signatures of CPT Violation in Neutrino Oscillations Koranga, Bipin Singh Farooq, Baktiar Wasir High Energy Physics - Phenomenology We investigate the joint influence of CPT violation and quantum-gravity-induced Planck-scale corrections on the entanglement entropy of two-flavor neutrino oscillations. Building on the CPT-violating neutrino mass matrix arising from flavour-blind Planck-scale physics, we compute the von Neumann entanglement entropy separately for neutrinos and anti-neutrinos and demonstrate that CPT violation directly imprints an observable asymmetry in their entropy profiles. For a degenerate mass spectrum (m_ν\simeq2\,\mathrm{eV}), non-zero Majorana phases a_{1} and a_{2} are required to reproduce the solar KamLAND discrepancy; these same phases control the amplitude of the entropy asymmetry. Our results establish that entanglement entropy provides a sensitive and novel probe of CPT-violating Planck-scale physics within neutrino phenomenology. |
| title | Entanglement Signatures of CPT Violation in Neutrino Oscillations |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2603.28841 |