618 citations · 1.2k across the 9 of their papers we have counts for
9 papers
A near-quantum-limited diamond maser amplifier operating at millikelvin temperatures
Morihiro Ohta, Ching-Ping Lee, Vincent P. M. Sietses +10
Current microwave quantum technologies require the amplification of weak signals with minimal added noise at millikelvin temperatures. To date, this stringent requirement has been…
M-center in low-energy electron irradiated 4H-SiC
Tihomir Knezevic, Amira Hadzipasic, Takeshi Ohshima +2
We report on the low-energy electron irradiated 4H-SiC material studied by means of deep-level transient spectroscopy (DLTS) and Laplace-DLTS. Electron irradiation has introduced t…
Towards a spin-ensemble quantum memory for superconducting qubits
C. Grezes, Y. Kubo, B. Julsgaard +15
This article reviews efforts to build a new type of quantum device, which combines an ensemble of electronic spins with long coherence times, and a small-scale superconducting quan…
Storage and retrieval of microwave fields at the single-photon level in a spin ensemble
C. Grezes, B. Julsgaard, Y. Kubo +13
We report the storage of microwave pulses at the single-photon level in a spin-ensemble memory consisting of NV centers in a diamond crystal coupled to a superconducting…
A subpicotesla diamond magnetometer
Thomas Wolf, Philipp Neumann, Kazuo Nakamura +3
Diamond defect centers are promising solid state magnetometers. Single centers allow for high spatial resolution field imaging but are limited in their magnetic field sensitivity t…
Multi-mode storage and retrieval of microwave fields in a spin ensemble
C. Grezes, B. Julsgaard, Y. Kubo +13
A quantum memory at microwave frequencies, able to store the state of multiple superconducting qubits for long times, is a key element for quantum information processing. Electroni…
Quantum error correction in a solid-state hybrid spin register
G. Waldherr, Y. Wang, S. Zaiser +7
Hybrid quantum systems seek to combine the strength of its constituents to master the fundamental conflicting requirements of quantum technology: fast and accurate systems control…
Broadband Excitation by Chirped Pulses: Application to Single Electron Spins in Diamond
I. Niemeyer, J. H. Shim, J. Zhang +9
Pulsed excitation of broad spectra requires very high field strengths if monochromatic pulses are used. If the corresponding high power is not available or not desirable, the pulse…
Electron spin resonance detected by a superconducting qubit
Y. Kubo, I. Diniz, C. Grezes +14
A new method for detecting the magnetic resonance of electronic spins at low temperature is demonstrated. It consists in measuring the signal emitted by the spins with a supercondu…