Distillability sudden death in qutrit-qutrit systems under amplitude damping

TL;DR

This paper studies how entangled qutrit-qutrit states lose their distillability suddenly under amplitude damping, showing that local unitaries can prevent this phenomenon in Markovian environments.

Contribution

It demonstrates that local unitary transformations can completely avoid distillability sudden death under amplitude damping in qutrit-qutrit systems.

Findings

Certain initially free-entangled states become bound-entangled in finite time.

Local unitaries can prevent distillability sudden death under amplitude damping.

Distillability sudden death occurs due to Markovian dissipative environments.

Abstract

Recently it has been discovered that certain two-qutrit entangled states interacting with global and/or multi-local decoherence undergo distillability sudden death (DSD). We investigate this phenomenon for qutrit-qutrit systems interacting with statistically independent zero-temperature reservoirs. We show that certain initially prepared free-entangled states become bound-entangled in a finite time due to the action of Markovian dissipative environment. Moreover, in contrast with local dephasing, simple local unitary transformations can completely avoid distillability sudden death under amplitude damping.