The elusive memristor: properties of basic electrical circuits
- Y. Joglekar, Stephen J. Wolf
- Physics
- 25 July 2008
We present an introduction to and a tutorial on the properties of the recently discovered ideal circuit element, a memristor. By definition, a memristor M relates the charge q and the magnetic flux ϕ…
Quantum state tomography across the exceptional point in a single dissipative qubit
- M. Naghiloo, M. Abbasi, Y. Joglekar, K. Murch
- PhysicsNature Physics
- 23 January 2019
Open physical systems can be described by effective non-Hermitian Hamiltonians that characterize the gain or loss of energy or particle numbers from the system. Experimental realization of optical1–7…
Simulating the vibrational quantum dynamics of molecules using photonics
- Chris Sparrow, E. Martin-Lopez, A. Laing
- Chemistry, PhysicsNature
- 31 May 2018
By mapping vibrations in molecules to photons in waveguides, the vibrational quantum dynamics of various molecules are simulated using a photonic chip and point to powerful new simulation tools for molecular quantum dynamics and the field of femtochemistry.
Quantum information dynamics in a high-dimensional parity-time-symmetric system
Non-Hermitian systems with parity-time ($\mathcal{PT}$) symmetry give rise to exceptional points (EPs) with exceptional properties that arise due to the coalescence of eigenvectors. Such systems have…
Optical waveguide arrays: quantum effects and PT symmetry breaking
- Y. Joglekar, Clinton Thompson, Derek D. Scott, G. Vemuri
- Physics
- 15 May 2013
Over the last two decades, advances in fabrication have led to significant progress in creating patterned heterostructures that support either carriers, such as electrons or holes, with specific band…
Robust and fragile PT -symmetric phases in a tight-binding chain
- Y. Joglekar, Derek D. Scott, Mark Babbey, A. Saxena
- Mathematics
- 17 August 2010
We study the phase diagram of a parity- and time-reversal- ($\mathcal{P}\mathcal{T}$-) symmetric tight-binding chain with $N$ sites and hopping energy $J$ in the presence of two impurities with…
Observation of parity-time symmetry breaking transitions in a dissipative Floquet system of ultracold atoms
- Jiaming Li, Andrew K. Harter, Ji Liu, Leonardo de Melo, Y. Joglekar, L. Luo
- PhysicsNature Communications
- 17 August 2016
The authors use noninteracting fermions of ultracold Li atoms with tunable time-periodic dissipation or coupling to demonstrate the breaking and restoration of parity‐time symmetry.
Excitonic condensation of massless fermions in graphene bilayers
- C. Zhang, Y. Joglekar
- Physics
- 24 March 2008
Graphene, a single sheet of graphite with honeycomb lattice structure, has massless carriers with tunable density and polarity. We investigate the ground-state phase diagram of two graphene sheets…
PT spectroscopy of the Rabi problem
- Y. Joglekar, Rahul Marathe, P. Durganandini, R. Pathak
- Physics
- 17 July 2014
We investigate the effects of a time-periodic, non-hermitian, PT-symmetric perturbation on a system with two (or few) levels, and obtain its phase diagram as a function of the perturbation strength…
Quantum Jumps in the Non-Hermitian Dynamics of a Superconducting Qubit.
- Weijian Chen, M. Abbasi, Y. Joglekar, K. Murch
- PhysicsPhysical Review Letters
- 10 March 2021
The study of the dynamics of a driven non-Hermitian superconducting qubit which is perturbed by quantum jumps between energy levels shows the critical role of quantum jumps in generalizing the applications of classical non- hermitian systems to open quantum systems for sensing and control.
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