60 citations · 260 across the 13 of their papers we have counts for
14 papers
Crossover from Rabi oscillations to adiabatic population switching in the Faraday optical control of quantum dot spins
Jan M. Kaspari, Zhe Xian Koong, Dorian A. Gangloff +2
Stimulated Raman transitions in Faraday geometry allow for simultaneous single-shot qubit readout and qubit control. It involves driving an unbalanced system via an auxiliary e…
Decoy-state quantum key distribution over 227 km with a frequency-converted telecom single-photon source
Frederik Brooke Barnes, Roberto G. Pousa, Christopher L. Morrison +7
We implement a decoy-state quantum key distribution scheme using a telecom C-band single-emitter source. The decoy states are created by varying the optical excitation of the quant…
Coherent Control of Quantum-Dot Spins with Cyclic Optical Transitions
Zhe Xian Koong, Urs Haeusler, Jan M. Kaspari +14
Solid-state spins are promising as interfaces from stationary qubits to single photons for quantum communication technologies. Semiconductor quantum dots have excellent optical coh…
Optical and magnetic response by design in GaAs quantum dots
Christian Schimpf, Ailton J. Garcia, Zhe X. Koong +24
Quantum networking technologies use spin qubits and their interface to single photons as core components of a network node. This necessitates the ability to co-design the magnetic-…
Experimental distributed quantum sensing in a noisy environment
James Bate, Arne Hamann, Marco Canteri +5
The precision advantages offered by harnessing the quantum states of sensors can be readily compromised by noise. However, when the noise has a different spatial function than the…
A photon-interfaced ten qubit quantum network node
M. Canteri, Z. X. Koong, J. Bate +3
We entangle each individual matter-qubit in a register of ten to a separate travelling photon. The qubits are encoded in a string of cotrapped atomic ions. By switching the trap co…
Single-emitter quantum key distribution over 175 km of fiber with optimised finite key rates
Christopher L. Morrison, Roberto G. Pousa, Francesco Graffitti +8
Quantum key distribution with solid-state single-photon emitters is gaining traction due to their rapidly improving performance and compatibility with future quantum network archit…
Signatures of cooperative emission in photon coincidence: Superradiance versus measurement-induced cooperativity
Moritz Cygorek, Eleanor D. Scerri, Ted S. Santana +3
Indistinguishable quantum emitters confined to length scales smaller than the wavelength of the light become superradiant. Compared to uncorrelated and distinguishable emitters, su…
Coherence in Cooperative Photon Emission from Indistinguishable Quantum Emitters
Zhe Xian Koong, Moritz Cygorek, Eleanor Scerri +5
Photon-mediated interactions between atomic systems can arise via coupling to a common electromagnetic mode or by quantum interference. Here, we probe the role of coherence in coop…
A Bright Source of Telecom Single Photons Based on Quantum Frequency Conversion
Christopher L. Morrison, Markus Rambach, Zhe Xian Koong +10
On-demand indistinguishable single photon sources are essential for quantum networking and communication. Semiconductor quantum dots are among the most promising candidates, but th…
Coherent Dynamics in Quantum Emitters under Dichromatic Excitation
Z. X. Koong, E. Scerri, M. Rambach +8
We characterize the coherent dynamics of a two-level quantum emitter driven by a pair of symmetrically-detuned phase-locked pulses. The promise of dichromatic excitation is to spec…
Multiplexed Single Photons from Deterministically Positioned Nanowire Quantum Dots
Zhe-Xian Koong, Guillem Ballesteros-Garcia, Raphaël Proux +3
Solid-state quantum emitters are excellent sources of on-demand indistinguishable or entangled photons and can host long-lived spin memories, crucial resources for photonic quantum…
Highly tunable quantum light from moiré trapped excitons
Hyeonjun Baek, Mauro Brotons-Gisbert, Zhe Xian Koong +5
Photon antibunching, a hallmark of quantum light, has been observed in the correlations of light from isolated atomic and atomic-like solid-state systems. Two-dimensional semicondu…
Fundamental Limits to Coherent Photon Generation with Solid-State Atomlike Transitions
Zhe-Xian Koong, Dale Scerri, Markus Rambach +5
Coherent generation of indistinguishable single photons is crucial for many quantum communication and processing protocols. Solid-state realizations of two-level atomic transitions…