261 citations · 719 across the 17 of their papers we have counts for
18 papers
Characterization of superconducting through-silicon vias as capacitive elements in quantum circuits
Thomas M. Hazard, Wayne Woods, Danna Rosenberg +13
The large physical size of superconducting qubits and their associated on-chip control structures presents a practical challenge towards building a large-scale quantum computer. In…
Decoherence of a tunable capacitively shunted flux qubit
R. Trappen, X. Dai, M. A. Yurtalan +19
Quantum annealing is a method to solve optimization problems that leverages quantum tunneling in a coupled qubit system. We present a detailed study of the coherence of a tunable c…
Probing entanglement across the energy spectrum of a hard-core Bose-Hubbard lattice
Amir H. Karamlou, Ilan T. Rosen, Sarah E. Muschinske +16
Entanglement and its propagation are central to understanding a multitude of physical properties of quantum systems. Notably, within closed quantum many-body systems, entanglement…
Extremely Large Area (88 mm X 88 mm) Superconducting Integrated Circuit (ELASIC)
Rabindra N. Das, Vladimir Bolkhovsky, Alex Wynn +9
Superconducting integrated circuit (SIC) is a promising "beyond-CMOS" device technology enables speed-of-light, nearly lossless communications to advance cryogenic (4 K or lower) c…
Dynamically Reconfigurable Photon Exchange in a Superconducting Quantum Processor
Brian Marinelli, Jie Luo, Hengjiang Ren +6
Realizing the advantages of quantum computation requires access to the full Hilbert space of states of many quantum bits (qubits). Thus, large-scale quantum computation faces the c…
Learning-based Calibration of Flux Crosstalk in Transmon Qubit Arrays
Cora N. Barrett, Amir H. Karamlou, Sarah E. Muschinske +13
Superconducting quantum processors comprising flux-tunable data and coupler qubits are a promising platform for quantum computation. However, magnetic flux crosstalk between the fl…
Longitudinal coupling between a Si/SiGe quantum dot and an off-chip TiN resonator
J. Corrigan, Benjamin Harpt, Nathan Holman +10
Superconducting cavities have emerged as a key tool for measuring the spin states of quantum dots. So far however, few experiments have explored longitudinal couplings between dots…
Optimizing for periodicity: a model-independent approach to flux crosstalk calibration for superconducting circuits
X. Dai, R. Trappen, R. Yang +12
Flux tunability is an important engineering resource for superconducting circuits. Large-scale quantum computers based on flux-tunable superconducting circuits face the problem of…
Dissipative Landau-Zener tunneling in the crossover regime from weak to strong environment coupling
X. Dai, R. Trappen, H. Chen +22
Landau-Zener tunneling, which describes the transition in a two-level system during a sweep through an anti-crossing, is a model applicable to a wide range of physical phenomena. R…
Demonstration of long-range correlations via susceptibility measurements in a one-dimensional superconducting Josephson spin chain
Daniel M. Tennant, Xi Dai, Antonio J. Martinez +20
Spin chains have long been considered an effective medium for long-range interactions, entanglement generation, and quantum state transfer. In this work, we explore the properties…
Isochronous Data Link Across a Superconducting Nb Flex Cable with 5 femtojoules per Bit
Haitao Dai, Corey Kegerreis, Deepal Wehella Gamage +10
Interconnect properties position superconducting digital circuits to build large, high performance, power efficient digital systems. We report a board-to-board communication data l…
Calibration of flux crosstalk in large-scale flux-tunable superconducting quantum circuits
X. Dai, D. M. Tennant, R. Trappen +16
Magnetic flux tunability is an essential feature in most approaches to quantum computing based on superconducting qubits. Independent control of the fluxes in multiple loops is ham…
Fabrication of superconducting through-silicon vias
Justin L. Mallek, Donna-Ruth W. Yost, Danna Rosenberg +15
Increasing circuit complexity within quantum systems based on superconducting qubits necessitates high connectivity while retaining qubit coherence. Classical micro-electronic syst…
Dispersive measurement of a semiconductor double quantum dot via 3D integration of a high-impedance TiN resonator
Nathan Holman, D. Rosenberg, D. Yost +5
Spins in semiconductor quantum dots are a candidate for cryogenic quantum processors due to their exceptionally long coherence times. One major challenge to scaling quantum dot spi…
Solid-state qubits integrated with superconducting through-silicon vias
Donna-Ruth W. Yost, Mollie E. Schwartz, Justin Mallek +14
As superconducting qubit circuits become more complex, addressing a large array of qubits becomes a challenging engineering problem. Dense arrays of qubits benefit from, and may re…
Silicon Hard-Stop Spacers for 3D Integration of Superconducting Qubits
Bethany M. Niedzielski, David K. Kim, Mollie E. Schwartz +9
As designs for superconducting qubits become more complex, 3D integration of two or more vertically bonded chips will become necessary to enable increased density and connectivity.…
Analysis and mitigation of interface losses in trenched superconducting coplanar waveguide resonators
Greg Calusine, Alexander Melville, Wayne Woods +12
Improving the performance of superconducting qubits and resonators generally results from a combination of materials and fabrication process improvements and design modifications t…
3D integrated superconducting qubits
D. Rosenberg, D. Kim, R. Das +12
As the field of superconducting quantum computing advances from the few-qubit stage to larger-scale processors, qubit addressability and extensibility will necessitate the use of 3…