138 citations · 723 across the 43 of their papers we have counts for
43 papers
Single and entangled atomic systems in thermal bath and the Fulling-Davies-Unruh effect
Arnab Mukherjee, Sunandan Gangopadhyay, Archan S. Majumdar
In this study, we revisit the Fulling-Davies-Unruh effect in the context of two-level single and entangled atomic systems that are static in a thermal bath. We consider the interac…
Fulling-Davies-Unruh effect for accelerated two-level single and entangled atomic systems
Arnab Mukherjee, Sunandan Gangopadhyay, A. S. Majumdar
We investigate the transition rates of uniformly accelerated two-level single and entangled atomic systems in empty space as well as inside a cavity. We take into account the inter…
Device-Independent Quantum Key Distribution Using Random Quantum States
Subhankar Bera, Shashank Gupta, A. S. Majumdar
We Haar uniformly generate random states of various ranks and study their performance in an entanglement-based quantum key distribution (QKD) task. In particular, we analyze the ef…
Anharmonicity can enhance the performance of quantum refrigerators
Sourav Karar, Shounak Datta, Sibasish Ghosh +1
We explore a thermodynamical effect of anharmonicity in quantum mechanical oscillators. We show that small quartic perturbations to the oscillator potential lead to an enhancement…
Universal detection of entanglement in two-qubit states using only two copies
Suchetana Goswami, Sagnik Chakraborty, Sibasish Ghosh +1
We revisit the problem of detection of entanglement of an unknown two-qubit state using minimal resources. Using weak values and just two copies of an arbitrary two-qubit state, we…
Holographic complexity of black non-susy D3-brane and the high temperature limit
Sourav Karar, Sunandan Gangopadhyay, A. S. Majumdar
The holographic complexity of a `black' non-susy -brane is computed. The difference in the holographic complexity between this geometry in the Fefferman-Graham coordinates and…