220 citations · 278 across the 12 of their papers we have counts for
13 papers
Dynamically protected erasure qubit via low-frequency charge driving
Ahmed Hajr, Ke Wang, Bingcheng Qing +6
Dynamical protection via strong driving can enable resilient quantum processing on imperfect physical hardware. However, the practical utility of such schemes is frequently limited…
Flux Pumped Kerr-Free Parametric Amplifier
Kagan Yanik, Irwin Huang, Bibek Bhandari +7
We propose a flux-pumped superconducting parametric amplifier based on symmetrically threaded superconducting quantum interference devices (SQUIDs) that achieves a Kerr-free operat…
Contactless cavity sensing of superfluid stiffness in atomically thin 4Hb-TaS
Trevor Chistolini, Ha-Leem Kim, Qiyu Wang +13
The exceptional tunability of two-dimensional van der Waals materials offers unique opportunities for exploring novel superconducting phases. However, in such systems, the measurem…
The superconducting grid-states qubit
Long B. Nguyen, Hyunseong Kim, Dat T. Le +9
Decoherence errors arising from noisy environments remain a central obstacle to progress in quantum computation and information processing. Quantum error correction (QEC) based on…
Tunable Superconducting Quantum Interference Device Coupler for Fluxonium Qubits
Abhishek Chakraborty, Bibek Bhandari, D. Dominic Briseño-Colunga +7
Tunable couplers enable high-fidelity two-qubit gates leveraging high on/off coupling ratios and reduced crosstalk within a single design. We investigate a galvanically connected d…
Dynamical Sweet and Sour Regions in Bichromatically Driven Floquet Qubits
D. Dominic Briseño-Colunga, Bibek Bhandari, Debmalya Das +6
Modern superconducting and semiconducting quantum hardware use external charge and microwave flux drives to both tune and operate devices. However, each external drive is susceptib…
Advances in Josephson Junction Materials and Processes Toward Practical Quantum Computing
Hyunseong Kim, Gyunghyun Jang, Seungwon Jin +8
The Josephson junction is the fundamental nonlinear building block of superconducting quantum technologies. Its macroscopic quantum tunneling physics underpins superconducting quan…
Symmetrically Threaded Superconducting Quantum Interference Devices As Next Generation Kerr-cat Qubits
Bibek Bhandari, Irwin Huang, Ahmed Hajr +7
We theoretically explore an alternative circuit for Kerr-cat qubits based on symmetrically threaded Superconducting Quantum Interference Devices (SQUID). The Symmetrically Threaded…
Digital Quantum Simulation of Cavity Quantum Electrodynamics: Insights from Superconducting and Trapped Ion Quantum Testbeds
Alex H. Rubin, Brian Marinelli, Victoria A. Norman +15
We explore the potential for hybrid development of quantum hardware where currently available quantum computers simulate open Cavity Quantum Electrodynamical (CQED) systems for app…
Optimization of infrared and magnetic shielding of superconducting TiN and Al coplanar microwave resonators
John Mark Kreikebaum, Allison Dove, William Livingston +2
We present a systematic study of the effects of shielding on the internal quality factors (Qi) of Al and TiN microwave resonators designed for use in quantum coherent circuits. Mea…
Large gain quantum-limited qubit measurement using a two-mode nonlinear cavity
Saeed Khan, R. Vijay, I. Siddiqi +1
We provide a thorough theoretical analysis of qubit state measurement in a setup where a driven, parametrically-coupled cavity system is directly coupled to the qubit, with one of…
Mapping the optimal route between two quantum states
S. J. Weber, A. Chantasri, J. Dressel +3
A central feature of quantum mechanics is that a measurement is intrinsically probabilistic. As a result, continuously monitoring a quantum system will randomly perturb its natural…
1/f noise of Josephson-junction-embedded microwave resonators at single photon energies and millikelvin temperatures
K. W. Murch, S. J. Weber, E. M. Levenson-Falk +2
We present measurements of 1/f frequency noise in both linear and Josephson-junction-embedded superconducting aluminum resonators in the low power, low temperature regime - typical…