7 papers
Dynamical phase transition in generalized Dicke model with strongly interacting trapped Rydberg ions
Manish Chaudhary, Rejish Nath, Weibin Li
We study dynamical phase transitions in the generalized dissipative Dicke model in an array of trapped Rydberg ions, where their density-density interactions compete with the colle…
Quantum dynamics of spin-J particles in static and rotating magnetic fields: Entanglement resonances and kinks
Nargis Sultana, Siddharth Seetharaman, Rejish Nath
We examine the quantum dynamics of both a single spin-J particle and a pair of spin-J particles in the presence of static and rotating magnetic fields, which can be important for q…
Faraday patterns, spin textures, spin-spin correlations and competing instabilities in a driven spin-1 antiferromagnetic Bose-Einstein condensate
Vaishakh Kargudri, Sandra M. Jose, Rejish Nath
We study the formation of transient Faraday patterns and spin textures in driven quasi-one-dimensional and quasi-two-dimensional spin-1 Bose-Einstein condensates under the periodic…
Observation of effects of inter-atomic interaction on Autler-Townes splitting in cold Rydberg atoms
Silpa B S, Shovan Kanti Barik, Varna Shenoy +3
We demonstrate the effect of inter-atomic interaction in highly excited Rydberg atoms via Autler- Townes splitting in cold atoms. We measure the Autler-Townes (AT) splitting of the…
Properties of Krylov state complexity in qubit dynamics
Siddharth Seetharaman, Chetanya Singh, Rejish Nath
We analyze the properties of Krylov state complexity in qubit dynamics, considering a single qubit and a qubit pair. A geometrical picture of the Krylov complexity is discussed for…
Spin Phonon Relaxation Dynamics from a Conical Intersection of Trapped Rydberg Ions
Manish Chaudhary, Rejish Nath, Weibin Li
Non-adiabatic processes near conical intersections are rooted in the stronger coupling between electronic and nuclear degrees of freedom. Using a system of two trapped Rydberg ions…