5 papers
Spectral and Impedance Matching for Multi-excitation Charging of an Interacting Quantum Battery via an Anharmonic Mediator
Sujay Mondal, Anumita Mukhopadhyay, Siddhartha Dutta +1
We investigate a finite-time quantum-battery charging architecture in which a driven two-level working system transfers nonequilibrium resources to an interacting two-qubit battery…
Cross-Spectral Reservoir Correlations as a Resource for Finite-Time Quantum Otto Engines
Siddhartha Dutta, Sujay Mondal, Ankush Das +2
We investigate the thermodynamic consequences of longitudinal-transverse cross-spectral reservoir correlations in a finite-time quantum Otto engine with a two-level working medium.…
Effect of Cross-Spectral Correlations on Qubit Dynamics: Coherence Revival and Relaxation Modulation
Siddhartha Dutta, Sujay Mondal, Abhijit Bandyopadhyay
We investigate the reduced dynamics of a qubit subject to correlated longitudinal and transverse noise arising from its coupling to a shared bosonic bath. The environmental fluctua…
Tensor-Network-Based Unraveling of Non-Markovian Dynamics in Large Spin Chains via the Influence Martingale Approach
Sujay Mondal, Siddhartha Dutta, Abhijit Bandyopadhyay
Classical simulation of open quantum system dynamics remains challenging due to the exponential growth of the Hilbert space, the need to accurately capture dissipation and decohere…
IceCube PeV neutrinos from heavy dark matter decay with 12 years HESE data
Diptarko Mukherjee, Ashadul Halder, Debasish Majumdar +1
The decay of superheavy dark matter from the early universe may undergo decay via QCD cascades and electroweak cascade to produce neutrinos as one of the decay products. We conside…