78 citations · 244 across the 30 of their papers we have counts for
31 papers
Error-Bounded Fixed-Point Design of Super-Sample-Rate IIR Filters for Real-Time Superconducting Qubit Flux Predistortion
Matt Huszabianlou, Angelos Ioannou, Nirmalendu Bikash Patra +3
Flux-activated two-qubit gates in superconducting processors require correction of line distortion, which otherwise produces residual detuning, conditional-phase error, and leakage…
A Qutrit Time Crystal Stabilized with Native Chiral Interactions
Noah Goss, Nishchay Suri, Brian Marinelli +11
Periodically driven quantum many-body systems can spontaneously break discrete time-translation symmetry, realizing discrete time crystals. To date, both experimental and theoretic…
Quantum State Discrimination Enhanced by FPGA-Based AI Engine Technology
Anastasiia Butko, Artem Marisov, David I. Santiago +1
Identifying the state of a quantum bit (qubit), known as quantum state discrimination, is a crucial operation in quantum computing. However, it has been the most error-prone and ti…
Easier randomizing gates provide more accurate fidelity estimation
Debankan Sannamoth, Kristine Boone, Arnaud Carignan-Dugas +4
Accurate benchmarking of quantum gates is crucial for understanding and enhancing the performance of quantum hardware. A standard method for this is interleaved benchmarking, a tec…
Enabling Technologies for Scalable Superconducting Quantum Computing
Xanthe Croot, Kasra Nowrouzi, Christopher Spitzer +21
Experiments with superconducting quantum processors have successfully demonstrated the basic functions needed for quantum computation and evidence of utility, albeit without a siza…
Platform Architecture for Tight Coupling of High-Performance Computing with Quantum Processors
Shane A. Caldwell, Moein Khazraee, Elena Agostini +27
We propose an architecture, called NVQLink, for connecting high-performance computing (HPC) resources to the control system of a quantum processing unit (QPU) to accelerate workloa…
Enhancing quantum noise characterization via extra energy levels
Senrui Chen, Akel Hashim, Noah Goss +3
Noise is a major challenge for building practical quantum computing systems. Precise characterization of quantum noise is crucial for developing effective error mitigation and corr…
Scalable and Site-Specific Frequency Tuning of Two-Level System Defects in Superconducting Qubit Arrays
Larry Chen, Kan-Heng Lee, Chuan-Hong Liu +7
State-of-the-art superconducting quantum processors containing tens to hundreds of qubits have demonstrated the building blocks for realizing fault-tolerant quantum computation. No…
Collective Neutrino Oscillations in Three Flavors on Qubit and Qutrit Processors
Luca Spagnoli, Noah Goss, Alessandro Roggero +9
Collective neutrino flavor oscillations are of primary importance in understanding the dynamic evolution of core-collapse supernovae and subsequent terrestrial detection, but also…
First-principle crosstalk dynamics and Hamiltonian learning via Rabi experiments
Jan Balewski, Adam Winick, Yilun Xu +5
Coherent errors constitute a significant barrier to successful large-scale quantum computation. One such error mechanism is crosstalk, which violates spatial locality or the indepe…
Heisenberg-limited calibration of entangling gates with robust phase estimation
Kenneth Rudinger, J. P. Marceaux, Akel Hashim +3
The calibration of high-quality two-qubit entangling gates is an essential component in engineering large-scale, fault-tolerant quantum computers. However, many standard calibratio…
Observation of Photon Blockade in a Tavis-Cummings System
Brian Marinelli, Alex H. Rubin, Victoria A. Norman +10
We observe blockade of microwave photons in a Tavis-Cummings system comprising a superconducting cavity and up to transmon qubits. The effect is characterized with photon num…
Implementation of scalable suspended superinductors
Christian Jünger, Trevor Chistolini, Long B. Nguyen +7
Superinductors have become a crucial component in the superconducting circuit toolbox, playing a key role in the development of more robust qubits. Enhancing the performance of the…
Quantum Benchmarking of High-Fidelity Noise-Biased Operations on a Detuned-Kerr-Cat Qubit
Bingcheng Qing, Ahmed Hajr, Ke Wang +19
Ubiquitous noises in quantum systems remain a key obstacle to building quantum computers, necessitating the use of quantum error correction codes. Recently, error-correcting codes…
Quantum optimal control of superconducting qubits based on machine-learning characterization
Elie Genois, Noah J. Stevenson, Noah Goss +2
Implementing fast and high-fidelity quantum operations using open-loop quantum optimal control relies on having an accurate model of the quantum dynamics. Any deviations between th…
Hardware-Assisted Parameterized Circuit Execution
Abhi D. Rajagopala, Akel Hashim, Neelay Fruitwala +6
Standard compilers for quantum circuits decompose arbitrary single-qubit gates into a sequence of physical X(pi/2) pulses and virtual-Z phase gates. Consequently, many circuit clas…
A Practical Introduction to Benchmarking and Characterization of Quantum Computers
Akel Hashim, Long B. Nguyen, Noah Goss +16
Rapid progress in quantum technology has transformed quantum computing and quantum information science from theoretical possibilities into tangible engineering challenges. Breakthr…
Qudit Dynamical Decoupling on a Superconducting Quantum Processor
Vinay Tripathi, Noah Goss, Arian Vezvaee +3
Multi-level qudit systems are increasingly being explored as alternatives to traditional qubit systems due to their denser information storage and processing potential. However, qu…
Hardware-Efficient Randomized Compiling
Neelay Fruitwala, Akel Hashim, Abhi D. Rajagopala +7
Randomized compiling (RC) is an efficient method for tailoring arbitrary Markovian errors into stochastic Pauli channels. However, the standard procedure for implementing the proto…
ML-Powered FPGA-based Real-Time Quantum State Discrimination Enabling Mid-circuit Measurements
Neel R. Vora, Yilun Xu, Akel Hashim +12
Accurate and timely quantum state discrimination is critical for quantum computing, particularly in protocols requiring mid-circuit measurement (MCM) and conditional feed-forward.…
High-Coherence Kerr-cat qubit in 2D architecture
Ahmed Hajr, Bingcheng Qing, Ke Wang +15
The Kerr-cat qubit is a bosonic qubit in which multi-photon Schrodinger cat states are stabilized by applying a two-photon drive to an oscillator with a Kerr nonlinearity. The supp…
Performance of Superconducting Resonators Suspended on SiN Membranes
Trevor Chistolini, Kyunghoon Lee, Archan Banerjee +8
Suspending devices on thin SiN membranes can limit their interaction with the bulk substrate and reduce parasitic capacitance to ground. While suspending devices on membranes is us…
Distributed Architecture for FPGA-based Superconducting Qubit Control
Neelay Fruitwala, Gang Huang, Yilun Xu +6
Quantum circuits utilizing real time feedback techniques (such as active reset and mid-circuit measurement) are a powerful tool for NISQ-era quantum computing. Such techniques are…
Efficient Generation of Multi-partite Entanglement between Non-local Superconducting Qubits using Classical Feedback
Akel Hashim, Ming Yuan, Pranav Gokhale +8
Quantum entanglement is one of the primary features which distinguishes quantum computers from classical computers. In gate-based quantum computing, the creation of entangled state…