Discrimination of noise channels on the basis of quantum memory

Awasthi, Natasha; Joshi, Dheeraj Kumar; Sachdev, Surbhi

doi:10.1109/icaccm50413.2020.9212818

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Combined Study Of Esd Under the Action Of Memory1

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2023

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“…This behaviour is named as ESD. After taking the action of memory channel [43,44] and setting memory to a finite value, it is clearly visible in figures 5-8 that as the value of p increases, there is delay in the sudden death of entanglement [45] and the amount of entanglement creation is more as compared to previous one [46][47][48][49][50]. Similarly for phase damping channel, there is further increase in the ESD.…”

Section: Combined Study Of Esd Under the Action Of Memorymentioning

confidence: 93%

Sustainability of entanglement sudden death under the action of memory channel

Awasthi¹,

Joshi²

2023

Laser Phys. Lett.

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Quantum entanglement is an important resource in quantum information science. Its useful effects get disturbed when it is subjected to environmental effect and led to decay of entanglement. The behaviour of entanglement have been studied for maximally entangled mixed state (MEMS) under different cases. Here we proposed a method for the sustainability of entanglement using the concept of memory noise. During this study interesting results were observed for the intensification of entanglement sudden death (ESD) which have many applications in quantum information processing task. Analytical results were derived for MEMS state. After detailed discussion the problem is theoretically analysed and simulation results of ESD are presented.

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