228 citations · 1.1k across the 19 of their papers we have counts for
20 papers
Benchmarking exchange-only control of a 48-spin singlet manifold
HRL Quantum Team, Microsoft Collaborators, : +125
Exchange-only quantum computing benefits from high fidelity and straightforward control afforded by the exchange interaction. However, independently controllable qubits must be enc…
Spin singlets are useful
Silas Hoffman, Edward H. Chen, Matthew Brooks +6
We evaluate the utility of the spin-zero manifold of an exchange-coupled array of spins for tasks in quantum computation and quantum simulation. Since pairs of electrons can be…
Learning error suppression strategies for dynamic quantum circuits
Christopher Tong, Liran Shirizly, Edward H. Chen +2
Dynamic quantum circuits integrate unitary evolution with mid-circuit measurement and feedforward, enabling conditional operations essential for efficient quantum algorithms and fo…
Realizing the Nishimori transition across the error threshold for constant-depth quantum circuits
Edward H. Chen, Guo-Yi Zhu, Ruben Verresen +9
Preparing quantum states across many qubits is necessary to unlock the full potential of quantum computers. However, a key challenge is to realize efficient preparation protocols w…
Efficient Long-Range Entanglement using Dynamic Circuits
Elisa Bäumer, Vinay Tripathi, Derek S. Wang +5
Quantum simulation traditionally relies on unitary dynamics, inherently imposing efficiency constraints on the generation of intricate entangled states. In principle, these limitat…
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…
Detuning Axis Pulsed Spectroscopy of Valley-Orbital States in Si/SiGe Quantum Dots
Edward H. Chen, Kate Raach, Andrew Pan +16
Silicon quantum dot qubits must contend with low-lying valley excited states which are sensitive functions of the quantum well heterostructure and disorder; quantifying and maximiz…
Spin-Blockade Spectroscopy of Si/SiGe Quantum Dots
A. M. Jones, E. J. Pritchett, E. H. Chen +15
We implement a technique for measuring the singlet-triplet energy splitting responsible for spin-to-charge conversion in semiconductor quantum dots. This method, which requires fas…
Near-unity collection efficiency from quantum emitters in bulk diamond using chirped circular dielectric gratings
Jiabao Zheng, Andreas C. Liapis, Edward H. Chen +2
Efficient collection of fluorescence from nitrogen vacancy (NV) centers in diamond underlies the spin-dependent optical read-out that is necessary for quantum information processin…
High-sensitivity, spin-based electrometry with an ensemble of nitrogen-vacancy centers in diamond
Edward H. Chen, Hannah A. Clevenson, Kerry A. Johnson +4
We demonstrate a spin-based, all-dielectric electrometer based on an ensemble of nitrogen-vacancy (NV) defects in diamond. An applied electric field causes energy level shifts…
Review Article: Quantum Nanophotonics in Diamond
Tim Schröder, Sara Mouradian, Jiabao Zheng +6
The past decade has seen great advances in developing color centers in diamond for sensing, quantum information processing, and tests of quantum foundations. Increasingly, the succ…
Efficient Photon Coupling from a Diamond Nitrogen Vacancy Centre by Integration with Silica Fibre
Rishi N. Patel, Tim Schröder, Noel Wan +4
A central goal in quantum information science is to efficiently interface photons with single optical modes for quantum networking and distributed quantum computing. Here, we intro…
Generation of Ensembles of Individually Resolvable Nitrogen Vacancies Using Nanometer-Scale Apertures in Ultrahigh-Aspect Ratio Planar Implantation Masks
Igal Bayn, Edward H. Chen, Matthew E. Trusheim +9
A central challenge in developing magnetically coupled quantum registers in diamond is the fabrication of nitrogen vacancy (NV) centers with localization below ~20 nm to enable fas…
Fabrication of Triangular Nanobeam Waveguide Networks in Bulk diamond Using Single-Crystal Silicon Hard Masks
I. Bayn, S. Mouradian, L. Li +11
A scalable approach for integrated photonic networks in single-crystal diamond using triangular etching of bulk samples is presented. We describe designs of high quality factor (Q=…
Three megahertz photon collection rate from an NV center with millisecond spin coherence
Luozhou Li, Edward H. Chen, Jiabao Zheng +7
Efficient collection of the broadband fluorescence of the diamond nitrogen vacancy center is essential for a range of applications in sensing, on-demand single photon generation, a…
Coherent spin control of a nanocavity-enhanced qubit in diamond
Luozhou Li, Tim Schröder, Edward H. Chen +11
A central aim of quantum information processing is the efficient entanglement of multiple stationary quantum memories via photons. Among solid-state systems, the nitrogen-vacancy (…
Scalable integration of long-lived quantum memories into a photonic circuit
Sara L. Mouradian, Tim Schröder, Carl B. Poitras +8
We demonstrate a photonic circuit with integrated long-lived quantum memories. Pre-selected quantum nodes - diamond micro-waveguides containing single, stable, and negatively charg…
Ultrahigh Resolution Spectroscopy Across the Visible to Infrared Spectrum Using Multi-Mode Interference in a Compact Tapered Fiber
Noel H. Wan, Fan Meng, Ren-Jye Shiue +3
Optical spectroscopy is a fundamental tool in numerous areas of science and technology. Much effort has focused on miniaturizing spectrometers, but thus far at the cost of high spe…
True Limits to Precision via Unique Quantum Probe
Sergey I. Knysh, Edward H. Chen, Gabriel A. Durkin
Quantum instruments derived from composite systems allow greater measurement precision than their classical counterparts due to coherences maintained between N components; spins, a…