141 citations · 191 across the 9 of their papers we have counts for
9 papers
Characterization and Comparison of Energy Relaxation in Fluxonium Qubits
Kate Azar, Lamia Ateshian, Mallika T. Randeria +19
Fluxonium superconducting qubits have demonstrated long coherence times and high single- and two-qubit gate fidelities, making them a favorable building block for superconducting q…
A spin-refrigerated cavity quantum electrodynamic sensor
Hanfeng Wang, Kunal L. Tiwari, Kurt Jacobs +4
Quantum sensors based on solid-state defects, in particular nitrogen-vacancy (NV) centers in diamond, enable precise measurement of magnetic fields, temperature, rotation, and elec…
Energy exchange between surface plasmon polaritons and CdSe/ZnS quantum dots
Kunal Tiwari, Suresh C Sharma, Hussein Akafzade +1
Evidence is presented for energy exchange between surface plasmon polaritons (SPPs) excited in waveguide-coupled Ag/Si3N4/Au structures and CdSe/ZnS quantum dot (QD) emitters. The…
Tunable skyrmion-skyrmion binding on the surface of a topological insulator
Kunal L. Tiwari, J. Lavoie, T. Pereg-Barnea +1
We show that skyrmions on the surface of a magnetic topological insulator may experience an attractive interaction that leads to the formation of a skyrmion-skyrmion bound state. T…
How optical excitation controls the structure and properties of vanadium dioxide
Martin R. Otto, Laurent P. René de Cotret, David A. Valverde-Chavez +5
We combine ultrafast electron diffraction and time-resolved terahertz spectroscopy measurements to unravel the connection between structure and electronic transport properties duri…
Magnetoconductance signatures of chiral domain-wall bound states in magnetic topological insulators
Kunal L. Tiwari, W. A. Coish, T. Pereg-Barnea
Recent magnetoconductance measurements performed on magnetic topological insulator candidates have revealed butterfly-shaped hysteresis. This hysteresis has been attributed to the…
A photoinduced metallic phase of monoclinic vanadium dioxide
Vance R. Morrison, Robert P. Chatelain, Kunal L. Tiwari +4
The complex interplay between several active degrees of freedom (charge, lattice, orbtial and spin order) is thought to determine the electronic properties of many oxides, but the…
Full density matrix dynamics for large quantum systems: Interactions, Decoherence and Inelastic effects
Manas Kulkarni, Kunal L Tiwari, Dvira Segal
We develop analytical tools and numerical methods for time evolving the total density matrix of the finite-size Anderson model. The model is composed of two finite metal grains, ea…
Towards equilibration and thermalization between finite quantum systems: The role of dephasing effects and inelastic interactions
Manas Kulkarni, Kunal L. Tiwari, Dvira Segal
We demonstrate the approach towards a Gibbs-like equilibrium state, with a common temperature and a chemical potential, of two finite metallic grains, prepared with a different num…