# Generation of Large Kitten states via thermally driven dissipative freezing

## TL;DR

This paper presents a method to generate large Kitten and Cat states using dissipative one-axis twisting, enhancing quantum metrology and secret sharing capabilities with increased noise robustness and heralded success signals.

## Contribution

It introduces a novel approach exploiting Dicke state representations to produce larger Kitten states via dissipative processes, improving feasibility and robustness over prior methods.

## Key findings

- Increased probability of generating large Kitten and Cat states.
- Enhanced metrological sensitivity and noise robustness.
- Feasible post-selection of trajectories for larger states.

## Abstract

We show that one can exploit the representation of the Dicke state with magnetic quantum number $0$ in orthogonal bases to increase the probability of producing a large Kitten state or even a Cat state via dissipative one-axis twisting, resulting in a net increase in metrological sensitivity and robustness against white noise with respect to the initial state. The resulting states are also useful for quantum secret sharing. The success of the scheme is heralded by the rate of photoemissions. Unlike previous iterations, we have an important population of the larger Kitten states, which makes post-selecting trajectories for them feasible.