535 citations · 3k across the 50 of their papers we have counts for
11 papers · 1 filter
Qubit-controlled directional edge states in waveguide QED
Prasanna Pakkiam, N. Pradeep Kumar, Mikhail Pletyukhov +1
We propose an in-situ tunable chiral quantum system, composed of a quantum emitter coupled to a waveguide based on the Rice-Mele model (where we alternate both the on-site potentia…
Controlling quantum many-body systems using reduced-order modelling
I. A. Luchnikov, M. A. Gavreev, A. K. Fedorov
Quantum many-body control is among most challenging problems in quantum science, due to computational complexity of related underlying problems. We propose an efficient approach fo…
Double Upconversion for Superconducting Qubit Control realised using Microstrip Filters
Jonathan Dearlove, Prasanna Pakkiam, Arkady Fedorov
Superconducting qubits provide a promising platform for physically realising quantum computers at scale. Such devices require precision control at microwave frequencies. Common pra…
Realizing quantum gates with optically-addressable Yb ion qudits
M. A. Aksenov, I. V. Zalivako, I. A. Semerikov +6
The use of multilevel information carriers, also known as qudits, is a promising path for exploring scalability of quantum computing devices. Here we present a proof-of-principle r…
Passive superconducting circulator on a chip
Rohit Navarathna, Dat Thanh Le, Andrés Rosario Hamann +3
An on-chip microwave circulator that is compatible with superconducting devices is a key element for scale-up of superconducting circuits. Previous approaches to integrating circul…
Bound states in microwave QED: Crossover from waveguide to cavity regime
N. Pradeep Kumar, Andrès Rosario Hamann, Rohit Navarathna +3
Light-matter interaction at the single-quantum level is the heart of many regimes of high fundamental importance to modern quantum technologies. Strong interaction of a qubit with…
Effect of Measurement Backaction on Quantum Clock Precision Studied with a Superconducting Circuit
Xin He, Prasanna Pakkiam, Adil A. Gangat +3
We theoretically and experimentally study the precision of a quantum clock near zero temperature, explicitly accounting for the effect of continuous measurement. The clock is creat…
Testing spontaneous wavefunction collapse with quantum electromechanics
Germain Tobar, Stefan Forstner, Arkady Fedorov +1
Theories of spontaneous wavefunction collapse offer an explanation of the possible breakdown of quantum mechanics for macroscopic systems. However, the challenge of resolving predi…
Driven-dissipative time crystalline phases in a two-mode bosonic system with Kerr nonlinearity
L. R. Bakker, M. S. Bahovadinov, D. V. Kurlov +3
For the driven-dissipative system of two coupled bosonic modes in a nonlinear cavity resonator, we demonstrate a sequence of phase transitions from a trivial steady state to two di…
Free Fock parafermions in the tight-binding model with dissipation
A. S. Mastiukova, D. V. Kurlov, V. Gritsev +1
Parafermions that generalize (Majorana or usual) fermions appear as interacting quasi-particles because of their nature. Although attempts to develop models with free (non-interact…
Ternary Metal Oxide Substrates for Superconducting Circuits
Zach Degnan, Xin He, Alejandro Gomez Frieiro +3
Substrate material imperfections and surface losses are one of the major factors limiting superconducting quantum circuitry from reaching the scale and complexity required to build…