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A Scalable Superconducting Circuit Framework for Emulating Physics in Hyperbolic Space
Xicheng Xu, Ahmed Adel Mahmoud, Noah Gorgichuk +3
Theoretical studies and experiments in the last six years have revealed the potential for novel behaviours and functionalities in device physics through the synthetic engineering o…
Fast Bosonic Control via Multiphoton Qubit-Oscillator Interactions
Noah Gorgichuk, Mohammad Ayyash, Matteo Mariantoni +1
We study the problem of -fold rotationally symmetric bosonic state preparation, which is of great importance to bosonic quantum error correction, using a multiphoton interaction…
Purity benchmarking study of error coherence in a single Xmon qubit
Auda Zhu, Jérémy H. Béjanin, Xicheng Xu +1
In this study, we employ purity benchmarking (PB) to explore the dynamics of gate noise in a superconducting qubit system. Over 1110 hours of observations on an Xmon qubit, we simu…
Driven Multiphoton Qubit-Resonator Interactions
Mohammad Ayyash, Xicheng Xu, Sahel Ashhab +1
We develop a general theory for multiphoton qubit-resonator interactions enhanced by a qubit drive. The interactions generate qubit-conditional operations in the resonator when the…
Quantum Synchronization in Nonconservative Electrical Circuits with Kirchhoff-Heisenberg Equations
Matteo Mariantoni, Noah Gorgichuk
We investigate quantum synchronization phenomena in electrical circuits that incorporate specifically designed nonconservative elements. A dissipative theory of classical and quant…
Resonant Schrödinger Cat States in Circuit Quantum Electrodynamics
M. Ayyash, X. Xu, M. Mariantoni
We propose a fast scheme to generate Schrödinger cat states in a superconducting resonator using a continuously driven qubit without resorting to the dispersive regime, two-photon…