7 papers
Synchronization with Annealed Disorder and Higher-Harmonic Interactions in Arbitrary Dimensions: When Two Dimensions Are Special
Rupak Majumder, Shamik Gupta
The impact of disorder on collective phenomena depends crucially on whether it is quenched or annealed. In synchronization problems, quenched disorder in higher dimensional Kuramot…
Finite-size fluctuations for stochastic coupled oscillators: A general theory
Rupak Majumder, Julien Barré, Shamik Gupta
Phase transitions, sharp in the thermodynamic limit, get smeared in finite systems where macroscopic order-parameter fluctuations dominate. Achieving a coherent and complete theore…
Causality, localization, and universality of monitored quantum walks with long-range hopping
Sayan Roy, Shamik Gupta, Giovanna Morigi
A powerful strategy to accelerate quantum-walk-based search algorithms leverages on resetting protocols, where a detector monitors a target site and the evolution of the walker is…
Stationary-state dynamics of interacting phase oscillators in presence of noise and stochastic resetting
Anish Acharya, Mrinal Sarkar, Shamik Gupta
We explore the impact of global resetting on Kuramoto-type models of coupled limit-cycle oscillators with distributed frequencies both in absence and presence of noise. The dynamic…
Coherence-decoherence interplay in quantum systems due to projective stochastic pulses: The case of Rabi oscillations
Sushanta Dattagupta, Shamik Gupta
The interplay of coherence and decoherence is played out in a three-level quantum system, in which the third level is incoherently coupled to the second one which itself is in cohe…
Manipulating phases in many-body interacting systems with subsystem resetting
Anish Acharya, Rupak Majumder, Shamik Gupta
Stabilizing thermodynamically unstable phases in many-body systems, such as suppressing pathological neuronal synchronization in Parkinson's disease or maintaining magnetic order a…