45 citations · 133 across the 23 of their papers we have counts for
23 papers
Decohered toric code under quantum damping noise and its mapping to a classical spin model
Nihar Ranjan Dash, Sanjoy Dutta, R. Srikanth +1
We investigate properties of toric codes under realistic damping error channels, which include squeezing, thermal and non-Markovian effects. First, we map the decohered toric code…
Noise-Adaptive Predictive Dynamical Decoupling
Ali Abu-Nada, Subhashish Banerjee, Lian-Ao Wu
Protecting quantum coherence against realistic environmental noise remains one of the fundamental obstacles to scalable quantum technologies. We develop a noise-adaptive dynamical…
Tripartite entanglement of oscillating and decohering neutrinos
Subhashish Banerjee, Heinrich Päs, Erika Rani
We study entanglement measures for oscillating neutrinos in the wave-packet formalism and confirm that an oscillating neutrino exhibits genuine tripartite entanglement and can be c…
Entanglement-assisted continuous-variable concatenated codes for encoding qubits or oscillators
Nihar Ranjan Dash, Sanjoy Dutta, R. Srikanth +1
Entanglement-assisted (EA) stabilizer codes enhance the rate of error correction in relation to codes with no pre-shared entanglement. Meanwhile, bosonic error-correcting codes, su…
Quantum state transfer on a scalable network under unital and non-unital noise
Monika Rani, Subhashish Banerjee, Nikhil Swami +1
We investigate quantum state transfer on a class of bipartite graphs, namely the butterfly graphs, within the framework of discrete-time quantum walks. These graphs facilitate the…
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…
Quantum steganographic protocols using degenerate and entanglement-assisted quantum codes
Sanjoy Dutta, Nihar Ranjan Dash, Subhashish Banerjee +1
Steganography is the art of concealing secret information by embedding it in an apparently innocent-looking message. Quantum steganography applies the principles of quantum mechani…
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…
Dynamics of Quantum Coherence and Non-Classical Correlations in Open Quantum System Coupled to a Squeezed Thermal Bath
Neha Pathania, Ramniwas Meena, Subhashish Banerjee
We investigate the intricate dynamics of quantum coherence and non-classical correlations in a two-qubit open quantum system coupled to a squeezed thermal reservoir. By exploring t…
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…
Non-Markovianity in Discrete-Time Open Quantum Random Walk on Arbitrary Graphs
Monika Rani, Supriyo Dutta, Subhashish Banerjee
In this work, we present a new model of the Discrete-Time Open Quantum Walk (DTOQW) applicable to an arbitrary graph, thereby going beyond the case of quantum walks on regular grap…
Exploring the Non-Markovian Dynamics in Depolarizing Maps
Ali Abu-Nada, Subhashish Banerjee, Vivek Balasaheb Sabale
The non-Markovian depolarizing channel is explored from the perspective of understanding its non-Markovian behavior as well as the occurrence of singularities. The study brings tog…
Continuous Variable Based Quantum Communication in the Ocean
Ramniwas Meena, Subhashish Banerjee
Continuous Variable-Based Quantum Cryptography (CV-QKD) is an emerging field in quantum information science, offering unprecedented security for communication protocols by harnessi…
Facets of correlated non-Markovian channels
Vivek Balasaheb Sabale, Nihar Ranjan Dash, Atul Kumar +1
We investigate the domain of correlated non-Markovian channels, exploring the potential memory arising from the correlated action of channels and the inherent memory due to non-Mar…
Concatenating quantum error-correcting codes with decoherence-free subspaces and vice versa
Nihar Ranjan Dash, Sanjoy Dutta, R. Srikanth +1
Quantum error-correcting codes (QECCs) and decoherence-free subspace (DFS) codes provide active and passive means, respectively, to address certain types of errors that arise durin…
Protecting quantum correlations of negative quantum states using weak measurement under non-Markovian noise
Jai Lalita, Subhashish Banerjee
The weak measurement (WM) and quantum measurement reversal (QMR) are crucial in protecting the collapse of quantum states. The idea of WM and QMR has recently been used to protect…
Towards realization of universal quantum teleportation using weak measurements
Vivek Balasaheb Sabale, Atul Kumar, Subhashish Banerjee
In this manuscript, we analyze universal quantum teleportation in the presence of memory or memory-less dynamics with applications of partial collapse measurement operators. Our re…
Characterization of quantum dynamics using quantum error correction
S. Omkar, R. Srikanth, S. Banerjee
Characterizing noisy quantum processes is important to quantum computation and communication (QCC), since quantum systems are generally open. To date, all methods of characterizati…
Dynamics of entanglement in Two-Qubit Open System Interacting with a Squeezed Thermal Bath via Dissipative interaction
Subhashish Banerjee, V. Ravishankar, R. Srikanth
We study the dynamics of entanglement in a two-qubit system interacting with a squeezed thermal bath via a dissipative system-reservoir interaction with the system and reservoir as…
Entanglement Dynamics in Two-Qubit Open System Interacting with a Squeezed Thermal Bath via Quantum Nondemolition interaction
Subhashish Banerjee, V. Ravishankar, R. Srikanth
We analyze the dynamics of entanglement in a two-qubit system interacting with an initially squeezed thermal environment via a quantum nondemolition system-reservoir interaction, w…