337 citations · 1.6k across the 16 of their papers we have counts for
16 papers
Randomized benchmarking of a high-fidelity remote CNOT gate over a meter-scale microwave interconnect
Kentaro Heya, Timothy Phung, Moein Malekakhlagh +8
High-fidelity, meter-scale microwave interconnects between superconducting quantum processor modules are a key technology for extending system size beyond constraints imposed by de…
Mechanically-intermixed indium superconducting connections for microwave quantum interconnects
Yves Martin, Neereja Sundaresan, Jae-woong Nah +5
Superconducting coaxial cables represent critical communication channels for interconnecting superconducting quantum processors. Here, we report mechanically-intermixed indium join…
Enhanced Quantum State Transfer and Bell State Generation over Long-Range Multimode Interconnects via Superadiabatic Transitionless Driving
Moein Malekakhlagh, Timothy Phung, Daniel Puzzuoli +3
Achieving high-fidelity direct two-qubit gates over meter-scale long quantum interconnects is challenging in part due to the multimode nature of such systems. One alternative schem…
Encoding a magic state with beyond break-even fidelity
Riddhi S. Gupta, Neereja Sundaresan, Thomas Alexander +10
To run large-scale algorithms on a quantum computer, error-correcting codes must be able to perform a fundamental set of operations, called logic gates, while isolating the encoded…
Matching and maximum likelihood decoding of a multi-round subsystem quantum error correction experiment
Neereja Sundaresan, Theodore J. Yoder, Youngseok Kim +7
Quantum error correction offers a promising path for performing quantum computations with low errors. Although a fully fault-tolerant execution of a quantum algorithm remains unrea…
Calibrated decoders for experimental quantum error correction
Edward H. Chen, Theodore J. Yoder, Youngseok Kim +6
Arbitrarily long quantum computations require quantum memories that can be repeatedly measured without being corrupted. Here, we preserve the state of a quantum memory, notably wit…
Scalable mitigation of measurement errors on quantum computers
Paul D. Nation, Hwajung Kang, Neereja Sundaresan +1
We present a method for mitigating measurement errors on quantum computing platforms that does not form the full assignment matrix, or its inverse, and works in a subspace defined…
Quantum crosstalk cancellation for fast entangling gates and improved multi-qubit performance
K. X. Wei, E. Magesan, I. Lauer +14
Quantum computers built with superconducting artificial atoms already stretch the limits of their classical counterparts. While the lowest energy states of these artificial atoms s…
High-fidelity superconducting quantum processors via laser-annealing of transmon qubits
Eric J. Zhang, Srikanth Srinivasan, Neereja Sundaresan +19
Scaling the number of qubits while maintaining high-fidelity quantum gates remains a key challenge for quantum computing. Presently, superconducting quantum processors with >50-qub…
Demonstration of quantum volume 64 on a superconducting quantum computing system
Petar Jurcevic, Ali Javadi-Abhari, Lev S. Bishop +28
We improve the quality of quantum circuits on superconducting quantum computing systems, as measured by the quantum volume, with a combination of dynamical decoupling, compiler opt…
Reducing unitary and spectator errors in cross resonance with optimized rotary echoes
Neereja Sundaresan, Isaac Lauer, Emily Pritchett +3
We present an improvement to the cross resonance gate realized with the addition of resonant, target rotary pulses. These pulses, applied directly to the target qubit, are simultan…
Verifying Multipartite Entangled GHZ States via Multiple Quantum Coherences
Ken X. Wei, Isaac Lauer, Srikanth Srinivasan +6
The ability to generate and verify multipartite entanglement is an important benchmark for near-term quantum devices devices. We develop a scalable entanglement metric based on mul…
Interacting Qubit-Photon Bound States with Superconducting Circuits
Neereja M. Sundaresan, Rex Lundgren, Guanyu Zhu +2
Qubits strongly coupled to a photonic crystal give rise to many exotic physical scenarios, beginning with single and multi-excitation qubit-photon dressed bound states comprising i…
Observation of a dissipative phase transition in a one-dimensional circuit QED lattice
Mattias Fitzpatrick, Neereja M. Sundaresan, Andy C. Y. Li +2
Condensed matter physics has been driven forward by significant experimental and theoretical progress in the study and understanding of equilibrium phase transitions based on symme…
Beyond Strong Coupling in a Massively Multimode Cavity
Neereja M. Sundaresan, Yanbing Liu, Darius Sadri +5
The study of light-matter interaction has seen a resurgence in recent years, stimulated by highly controllable, precise, and modular experiments in cavity quantum electrodynamics (…
Time-Reversal Symmetrization of Spontaneous Emission for High Fidelity Quantum State Transfer
Srikanth J. Srinivasan, Neereja M. Sundaresan, Darius Sadri +5
We demonstrate the ability to control the spontaneous emission from a superconducting qubit coupled to a cavity. The time domain profile of the emitted photon is shaped into a symm…