446 citations
- Center for Excellence in Basic SciencesIN83 papers
- Tata Institute of Fundamental ResearchIN70 papers
- Inter-University Centre for Astronomy and AstrophysicsIN28 papers
- Bhabha Atomic Research CentreIN16 papers
- Centre National de la Recherche ScientifiqueFR15 papers
- Raman Research InstituteIN13 papers
- Indian Institute of Science BangaloreIN12 papers
- Aryabhatta Research Institute of Observational SciencesIN11 papers
- Homi Bhabha National InstituteIN11 papers
- Indian Institute of Technology BombayIN11 papers
- University of CambridgeGB11 papers
- Manipal University Jaipur10 papers
10 papers · 1 filter
Quasi-integrability and nonlinear resonances in cold atoms under modulation
Rahul Gupta, Manan Jain, Sudhir R. Jain
Quantum dynamics of a collection of atoms subjected to phase modulation has been carefully revisited. We present an exact analysis of the evolution of a two-level system (represent…
Quantum error correction beyond the toric code: dynamical systems meet encoding
Garima Rajpoot, Komal Kumari, Sudhir Ranjan Jain
We construct surface codes corresponding to genus greater than one in the context of quantum error correction. The architecture is inspired by the topology of invariant integral su…
Quantum Zeno effect: a qutrit controlled by a qubit
Komal Kumari, Garima Rajpoot, Sudhir Ranjan Jain
For a three-level system monitored by an ancilla, we show that quantum Zeno effect can be employed to control quantum jump for error correction. Further, we show that we can realiz…
Symmetries and Synchronization Blockade
Parvinder Solanki, Faraz Mohd Mehdi, Michal Hajdušek +1
Synchronization blockade refers to an interferometric cancellation of quantum synchronization. In this manuscript, we show how the choice of synchronization measure and Hamiltonian…
The tunable 0-\texorpdfstring{}{Lg} qubit: Dynamics and Relaxation
Garima Rajpoot, Komal Kumari, Sandeep Joshi +1
We present a systematic treatment of a 0-\texorpdfstring{}{Lg} qubit in the presence of a time-dependent external flux. A gauge-invariant Lagrangian and the corresponding Hamilt…
Qubit control using quantum Zeno effect: Action principle approach
Komal Kumari, Garima Rajpoot, Sandeep Joshi +1
We employ the stochastic path-integral formalism and action principle for continuous quantum measurements - the Chantasri-Dressel-Jordan (CDJ) action formalism [1, 2] - to understa…