174 citations · 1.1k across the 18 of their papers we have counts for
18 papers
Error mitigation with stabilized noise in superconducting quantum processors
Youngseok Kim, Luke C. G. Govia, Andrew Dane +10
Pre-fault tolerant quantum computers have already demonstrated the ability to estimate observable values accurately, at a scale beyond brute-force classical computation. This has b…
Spectator Errors in Tunable Coupling Architectures
D. M. Zajac, J. Stehlik, D. L. Underwood +9
The addition of tunable couplers to superconducting quantum architectures offers significant advantages for scaling compared to fixed coupling approaches. In principle, tunable cou…
Tunable Coupling Architecture for Fixed-frequency Transmons
J. Stehlik, D. M. Zajac, D. L. Underwood +9
Implementation of high-fidelity two-qubit operations is a key ingredient for scalable quantum error correction. In superconducting qubit architectures tunable buses have been explo…
On-Chip Quantum Dot Light Source for Quantum State Readout
Y. -Y. Liu, J. Stehlik, X. Mi +2
We use microwave radiation generated by a semiconductor double quantum dot (DQD) micromaser for charge state detection. A cavity is populated with n_c ~ 6000 photons by driving a c…
Phase locking of a semiconductor double quantum dot single atom maser
Y. -Y. Liu, T. Hartke, J. Stehlik +1
We experimentally study the phase stabilization of a semiconductor double quantum dot (DQD) single atom maser by injection locking. A voltage-biased DQD serves as an electrically t…
Threshold Dynamics of a Semiconductor Single Atom Maser
Y. -Y. Liu, J. Stehlik, C. Eichler +5
We demonstrate a single-atom maser consisting of a semiconductor double quantum dot (DQD) that is embedded in a high quality factor microwave cavity. A finite bias drives the DQD o…
Circuit Quantum Electrodynamics Architecture for Gate-Defined Quantum Dots in Silicon
X. Mi, J. V. Cady, D. M. Zajac +3
We demonstrate a hybrid device architecture where the charge states in a double quantum dot (DQD) formed in a Si/SiGe heterostructure are read out using an on-chip superconducting…
Double Quantum Dot Floquet Gain Medium
J. Stehlik, Y. -Y. Liu, C. Eichler +5
Strongly driving a two-level quantum system with light leads to a ladder of Floquet states separated by the photon energy. Nanoscale quantum devices allow the interplay of confined…
The Role of Multilevel Landau-Zener Interference in Extreme Harmonic Generation
J. Stehlik, M. Z. Maialle, M. H. Degani +1
Motivated by the observation of multiphoton electric dipole spin resonance processes in InAs nanowires, we theoretically study the transport dynamics of a periodically driven five-…
Sisyphus Thermalization of Photons in a Cavity-Coupled Double Quantum Dot
M. J. Gullans, J. Stehlik, Y. -Y. Liu +3
We investigate the non-classical states of light that emerge in a microwave resonator coupled to a periodically-driven electron in a nanowire double quantum dot (DQD). Under certai…
Injection Locking of a Semiconductor Double Quantum Dot Micromaser
Y. -Y. Liu, J. Stehlik, M. J. Gullans +2
Emission linewidth is an important figure of merit for masers and lasers. We recently demonstrated a semiconductor double quantum dot (DQD) micromaser where photons are generated t…
Semiconductor double quantum dot micromaser
Y. -Y. Liu, J. Stehlik, C. Eichler +3
The coherent generation of light, from masers to lasers, relies upon the specific structure of the individual emitters that lead to gain. Devices operating as lasers in the few-emi…
Fast charge sensing of a cavity-coupled double quantum dot using a Josephson parametric amplifier
J. Stehlik, Y. -Y. Liu, C. M. Quintana +3
We demonstrate fast readout of a double quantum dot (DQD) that is coupled to a superconducting resonator. Utilizing parametric amplification in a nonlinear operational mode, we imp…
Phonon-Assisted Gain in a Semiconductor Double Quantum Dot Maser
M. J. Gullans, Y. -Y. Liu, J. Stehlik +2
We develop a microscopic model for the recently demonstrated double quantum dot (DQD) maser. In characterizing the gain of this device we find that, in addition to the direct stimu…
Photon Emission from a Cavity-Coupled Double Quantum Dot
Y. -Y. Liu, K. D. Petersson, J. Stehlik +2
We study a voltage biased InAs double quantum dot (DQD) that is coupled to a superconducting transmission line resonator. Inelastic tunneling in the DQD is mediated by electron pho…
Extreme Harmonic Generation in Electrically Driven Spin Resonance
J. Stehlik, M. D. Schroer, M. Z. Maialle +2
We report the observation of multiple harmonic generation in electric dipole spin resonance in an InAs nanowire double quantum dot. The harmonics display a remarkable detuning depe…
Landau-Zener-Stuckelberg Interferometry of a Single Electron Charge Qubit
J. Stehlik, Y. Dovzhenko, J. R. Petta +4
We perform Landau-Zener-Stuckelberg interferometry on a single electron GaAs charge qubit by repeatedly driving the system through an avoided crossing. We observe coherent destruct…
Nonadiabatic quantum control of a semiconductor charge qubit
Y. Dovzhenko, J. Stehlik, K. D. Petersson +3
We demonstrate multipulse quantum control of a single electron charge qubit. The qubit is manipulated by applying nonadiabatic voltage pulses to a surface depletion gate and readou…