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4 papers · 2 filters
Chimera order in spin systems
Rajeev Singh, Subinay Dasgupta, Sitabhra Sinha
Homogeneous populations of oscillators have recently been shown to exhibit stable coexistence of coherent and incoherent regions. Generalizing the concept of chimera states to the…
Complex Networks: effect of subtle changes in nature of randomness
Sanchari Goswami, Soham Biswas, Parongama Sen
In two different classes of network models, namely, the Watts Strogatz type and the Euclidean type, subtle changes have been introduced in the randomness. In the Watts Strogatz typ…
Novel ballistic to diffusive crossover in the dynamics of a one dimensional Ising model with variable range of interaction
Soham Biswas, Parongama Sen
The idea that the dynamics of a spin is determined by the size of its neighbouring domains was recently introduced (S. Biswas and P. Sen, Phys. Rev. E {\bf 80}, 027101 (2009)) in a…
Quantum Persistence: A Random Walk Scenario
Sanchari Goswami, Parongama Sen, Arnab Das
In this paper we extend the concept of persistence, well defined for classical stochastic dynamics, to the context of quantum dynamics. We demonstrate the idea via quantum random w…