U
Uma Divakaran
Researcher at Indian Institutes of Technology
Publications - 58
Citations - 1096
Uma Divakaran is an academic researcher from Indian Institutes of Technology. The author has contributed to research in topics: Quantum phase transition & Quantum critical point. The author has an hindex of 15, co-authored 54 publications receiving 883 citations. Previous affiliations of Uma Divakaran include Saarland University & Indian Institute of Technology Kanpur.
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Book
Quantum Phase Transitions in Transverse Field Spin Models: From Statistical Physics to Quantum Information
TL;DR: The transverse field Ising and XY models (the simplest quantum spin models) provide the organizing principle for the rich variety of interconnected subjects which are covered in this book as mentioned in this paper, including the essentials of quantum dynamics and quantum information.
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Quenching dynamics of a quantum XY spin-1/2 chain in a transverse field
TL;DR: In this article, the authors studied the quantum dynamics of a one-dimensional spin-$1/2$ anisotropic XY model in a transverse field when the transverse fields or the Anisotropic interaction is quenched at a slow but uniform rate.
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Slow quenches in a quantum Ising chain: Dynamical phase transitions and topology
TL;DR: In this article, the authors studied the slow quenching dynamics of a one-dimensional transverse Ising chain with nearest neighbor ferromagentic interactions across the quantum critical point (QCP) and analyzed the Loschmidt overlap measured using the subsequent temporal evolution of the final wave function with the final time independent Hamiltonian.
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Quenching along a gapless line: A different exponent for defect density
TL;DR: In this paper, the defect density in the final state scales as 1/tau1/3, a behavior that has not been observed in previous studies of quenching through a gapless phase.