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# The XXX International Conference on Neutrino Physics and Astrophysics (Neutrino 2022)

30 May 2022 to 4 June 2022
Virtual Seoul
Asia/Seoul timezone

## Investigating the Impact of Quantum Decoherence on $\nu$-Oscillation Probabilities

Not scheduled
5m
Virtual Seoul

#### Virtual Seoul

Poster Neutrino oscillation

### Speaker

Mr Arnab Sarker (Tezpur University)

### Description

Neutrinos are particles which are extremely weakly interacting. These particles come in three flavor and tend to oscillate from one to another. Such oscillations result from a coherent superposition of neutrino mass states. However, no system in nature is completely an isolated system. Neutrinos, like any other system in nature, are no exception and should be treated as an open quantum system. This opens up the prospect of interplay between neutrinos and the dissipative environment. Such interactions can cause the neutrino states to a lose their coherence over the propagation distance. It also has an impact on the $\nu$-appearance and disappearance probabilities. Such decoherence effects are feasible in systems that interact with a dissipative environment. Here, we consider the neutrino system as an open quantum system and apply the Lindblad Master equation to derive the time evolution of the neutrinos and incorporate the influence of decoherence into the neutrino sub-system as an additional term.

The consequence of dissipative interactions that comes from the environment on the $\nu$-oscillation probabilities is investigated in the present study. The altered $\nu$-oscillation probabilities are calculated using the general framework we devised, taking into account the effects of environmental decoherence. For a multitude of decoherence parameter values and baselines, we attempt to spot any observable changes in probabilities. We'll discuss our ongoing research on the effects of decoherence caused by the dissipative environment on the $\nu$-oscillation probabilities, particularly in the long-baseline domain.

### Primary authors

Mr Arnab Sarker (Tezpur University) Dr Moon Moon Devi (Tezpur University, Assam, India)

### Presentation Materials

 20220513054151_15.jpg 20220513054154_8.mp4