292 citations · 647 across the 19 of their papers we have counts for
20 papers
Gradient-Based Optimization Enables Scalable Fault-Tolerant Quantum Gate Synthesis
Marc Grau Davis, Ed Younis, Mathias Weiden +2
We develop a numerical approach to optimizing a quantum circuit over a discrete gate set by using gradient descent to tune angles to a solution where many gates can be…
Microring Perceptron Sensing for Low-Power Radio-Frequency Detection with Quantum-Compatible Photonic Preprocessing
Bo-Han Wu, Shi-Yuan Ma, Mahmoud Jalali Mehrabad +4
Radio-frequency (RF) sensing underpins applications ranging from radar and wireless communication to biomedical and quantum measurement, where detection sensitivity at low signal-t…
Quantum Circuit Switching with One-Way Repeaters in Star Networks
Álvaro G. Iñesta, Hyeongrak Choi, Dirk Englund +1
Distributing quantum states reliably among distant locations is a key challenge in the field of quantum networks. One-way quantum networks address this by using one-way communicati…
Closed-Loop Electron-Beam-Induced Spectroscopy and Nanofabrication Around Individual Quantum Emitters
Jawaher Almutlaq, Kyle P. Kelley, Hyeongrak Choi +5
Color centers in diamond play a central role in the development of quantum photonic technologies, and their importance is only expected to grow in the near future. For many quantum…
Tutorial: Remote entanglement protocols for stationary qubits with photonic interfaces
Hans K. C. Beukers, Matteo Pasini, Hyeongrak Choi +3
Generating entanglement between distant quantum systems is at the core of quantum networking. In recent years, numerous theoretical protocols for remote entanglement generation hav…
Heterogeneous integration of spin-photon interfaces with a scalable CMOS platform
Linsen Li, Lorenzo De Santis, Isaac Harris +14
Color centers in diamonds have emerged as a leading solid-state platform for advancing quantum technologies, satisfying the DiVincenzo criteria and recently achieving a quantum adv…
Scalable Quantum Networks: Congestion-Free Hierarchical Entanglement Routing with Error Correction
Hyeongrak Choi, Marc G. Davis, Álvaro G. Iñesta +1
We introduce Quantum Tree Networks (QTN), an architecture for hierarchical multi-flow entanglement routing. The network design is a -ary tree where end nodes are situated on the…
Fault Tolerant Non-Clifford State Preparation for Arbitrary Rotations
Hyeongrak Choi, Frederic T. Chong, Dirk Englund +1
Quantum error correction is an essential component for practical quantum computing on noisy quantum hardware. However, logical operations on error-corrected qubits require a signif…
Programmable photonic integrated meshes for modular generation of optical entanglement links
Mark Dong, Matthew Zimmermann, David Heim +9
Large-scale generation of quantum entanglement between individually controllable qubits is at the core of quantum computing, communications, and sensing. Modular architectures of r…
Steady-state microwave mode cooling with a diamond NV ensemble
Donald P. Fahey, Kurt Jacobs, Matthew J Turner +4
A fundamental result of quantum mechanics is that the fluctuations of a bosonic field are given by its temperature . An electromagnetic mode with frequency in the microwave…
Ultrastrong magnetic light-matter interaction with cavity mode engineering
Hyeongrak Choi, Dirk Englund
Magnetic interaction between photons and dipoles is essential in electronics, sensing, spectroscopy, and quantum computing. However, its weak strength often requires resonators to…
Quantum networks based on color centers in diamond
Maximilian Ruf, Noel H. Wan, Hyeongrak Choi +2
With the ability to transfer and process quantum information, large-scale quantum networks will enable a suite of fundamentally new applications, from quantum communications to dis…
Field-based Design of a Resonant Dielectric Antenna for Coherent Spin-Photon Interfaces
Linsen Li, Hyeongrak Choi, Mikkel Heuck +1
We propose a field-based design for dielectric antennas to interface diamond color centers with a Gaussian propagating far field. This antenna design enables an efficient spin-phot…
Absorption-Based Diamond Spin Microscopy on a Plasmonic Quantum Metasurface
Laura Kim, Hyeongrak Choi, Matthew Trusheim +1
Nitrogen vacancy (NV) centers in diamond have emerged as a leading quantum sensor platform, combining exceptional sensitivity with nanoscale spatial resolution by optically detecte…
Terahertz Light Sources by Electronic-Oscillator-Driven Second Harmonic Generation in Extreme-Confinement Cavities
Lamia Ateshian, Hyeongrak Choi, Mikkel Heuck +1
The majority of sources of coherent optical radiation rely on laser oscillators driven by population inversion. Despite their technological importance in communications, medicine,…
Indistinguishable Single-Photon Sources with Dissipative Emitter Coupled to Cascaded Cavities
Hyeongrak Choi, Di Zhu, Yoseob Yoon +1
Recently, Grange et al. [Phys. Rev. Lett. 114, 193601 (2015)] showed the possibility of single photon generation with high indistinguishability from a quantum emitter, despite stro…
A scalable multi-photon coincidence detector based on superconducting nanowires
Di Zhu, Qing-Yuan Zhao, Hyeongrak Choi +4
Coincidence detection of single photons is crucial in numerous quantum technologies and usually requires multiple time-resolved single-photon detectors. However, the electronic rea…
Fast thermal relaxation in cavity-coupled graphene bolometers with a Johnson noise read-out
D. K. Efetov, R. -J. Shiue, Y. Gao +10
Since the invention of the bolometer, its main design principles relied on efficient light absorption into a low-heat-capacity material and its exceptional thermal isolation from t…
Percolation based architecture for cluster state creation using photon-mediated entanglement between atomic memories
Hyeongrak Choi, Mihir Pant, Saikat Guha +1
A central challenge for many quantum technologies concerns the generation of large entangled states of individually addressable quantum memories. Here, we show that percolation the…
Low-control and robust quantum refrigerator and applications with electronic spins in diamond
M. Hamed Mohammady, Hyeongrak Choi, Matthew E. Trusheim +3
We propose a general protocol for low-control refrigeration and thermometry of thermal qubits, which can be implemented using electronic spins in diamond. The refrigeration is impl…