6 papers
Interrelation of Non-Classicality, Entropy, Irreversibility and Work extraction in Open Quantum Systems
Jai Lalita, Subhashish Banerjee
The interplay of non-classical volume, von Neumann entropy, entropy production, and ergotropy is investigated in various open quantum systems. Two categories of open quantum system…
Non-classicality of two-qubit quantum collision model: non-Markovian effects
Jai Lalita, Subhashish Banerjee
We investigate a two-qubit quantum system in contact with an environment modeled by a microscopic collision model with added ancilla-ancilla collisions in the non-Markovian regime.…
Quantum state transfer and periodicity in discrete-time quantum walks under non--Markovian dephasing noise
Monika Rani, Supriyo Dutta, Subhashish Banerjee
In quantum communication, quantum state transfer from one location to another in a quantum network plays a prominent role, where the impact of noise could be crucial. The idea of s…
Husimi phase distribution in non-Gaussian operations
Ramniwas Meena, Chandan Kumar, Subhashish Banerjee
The Husimi phase distribution, an experimentally measurable quantity, is investigated for single-mode and two-mode squeezed vacuum states. The analysis highlights that non-Gaussian…
Bounds on concatenated entanglement-assisted quantum error-correcting codes
Nihar Ranjan Dash, Sanjoy Dutta, R. Srikanth +1
Code concatenation combines two or more component codes to design larger codes with greater noise resilience. Introducing entanglement assistance to concatenated codes provides a f…
Realizing Negative Quantum States with the IBM Quantum Hardware
Jai Lalita, Pavithran Iyer, Subhashish Banerjee
This study explores robust entangled states described using the framework of discrete Wigner functions. Notably, these states are known to outperform the Bell state in measures of…