529 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of OtagoNZ255 papers
- University of AucklandNZ122 papers
- Massey UniversityNZ48 papers
- The University of QueenslandAU26 papers
- Centre National de la Recherche ScientifiqueFR20 papers
- ARC Centre of Excellence for Engineered Quantum SystemsAU18 papers
- University of CanterburyNZ16 papers
- MacDiarmid Institute for Advanced Materials and NanotechnologyNZ15 papers
- Victoria University of WellingtonNZ15 papers
- Australian National UniversityAU13 papers
- China Academy of Engineering PhysicsCN12 papers
- Durham UniversityGB10 papers
50 papers · 1 filter
A quantum optical realization of the Ornstein-Uhlenbeck process via simultaneous action of white noise and feedback
Alexander Carmele, Scott Parkins, Andreas Knorr
We establish an important connection between coherent quantum feedback and the Ornstein-Uhlenbeck process in quantum optics. We show that an emitter with fluctuating energy levels…
Experimental observation of internally-pumped parametric oscillation and quadratic comb generation in a whispering-gallery-mode microresonator
Ian Hendry, Luke S. Trainor, Yiqing Xu +4
We report on the experimental observation of internally-pumped parametric oscillation in a high-Q lithium niobate microresonator under conditions of natural phase-matching. Specifi…
Transfer matrix approach to determining the linear response of all-fiber networks of cavity-QED systems
Nikolett Német, Donald White, Shinya Kato +2
A semiclassical model is presented for characterizing the linear response of elementary quantum optical systems involving cavities, optical fibers, and atoms. Formulating the trans…
Universal expansion of vortex clusters in a dissipative two-dimensional superfluid
Oliver R. Stockdale, Matthew T. Reeves, Xiaoquan Yu +5
A large ensemble of quantum vortices in a superfluid may itself be treated as a novel kind of fluid that exhibits anomalous hydrodynamics. Here we consider the dynamics of vortex c…
Nonlinear power dependence of the spectral properties of an optical parametric oscillator below threshold in the quantum regime
Golnoush Shafiee, Dmitry V. Strekalov, Alexander Otterpohl +6
Photon pairs and heralded single photons, obtained from cavity-assisted parametric down-conversion (PDC), play an important role in quantum communications and technology. This moti…
Ultrastrong coupling between a microwave resonator and antiferromagnetic resonances of rare earth ion spins
Jonathan Everts, Gavin G. G. King, Nicholas Lambert +3
Quantum magnonics is a new and active research field, leveraging the strong collective coupling between microwaves and magnetically ordered spin systems. To date work in quantum ma…
The Yamada model for a self-pulsing laser: bifurcation structure for non-identical decay times of gain and absorber
Robert Otupiri, Bernd Krauskopf, Neil G. R. Broderick
We consider self-pulsing in lasers with a gain section and an absorber section via a mechanism known as Q-switching, as described mathematically by the Yamada ordinary differential…
Observation of two-dimensional Anderson localisation of ultracold atoms
Donald H. White, Thomas A. Haase, Dylan J. Brown +6
Anderson localisation -- the inhibition of wave propagation in disordered media -- is a surprising interference phenomenon which is particularly intriguing in two-dimensional (2D)…
Quantum trajectory theory of few photon cavity-QED systems with a time-delayed coherent feedback
Gavin Crowder, Howard Carmichael, Stephen Hughes
We describe an efficient approach to modelling cavity quantum electrodynamics (QED) with a time-delayed coherent feedback using quantum trajectory simulations. An analytical set of…
Backfolded acoustic phonons in metal-oxide superlattices
F. Lyzwa, A. Chan, J. Khmaladze +5
We report the observation of low-frequency modes in the Raman spectra of thin-film superlattices of the high-temperature superconductor YBaCuO and various…
Optically unstable phase from ion-ion interactions in an erbium doped crystal
Yu-Hui Chen, Sebastian P. Horvath, Jevon J. Longdell +1
We demonstrate an optical unstable phase for a laser driven erbium ion ensemble. The transmitted light through an erbium-doped yttrium orthosillicate crystal becomes dynamically un…
Pronounced non-Markovian features in multiply-excited, multiple-emitter waveguide-QED: Retardation-induced anomalous population trappin
Alexander Carmele, Nikolett Nemet, Victor Canela +1
The Markovian approximation is widely applied in the field of quantum optics due to the weak frequency dependence of the vacuum field amplitude, and in consequence non-Markovian ef…
The driven-dissipative Bose-Hubbard dimer: phase diagram and chaos
A. Giraldo, B. Krauskopf, N. G. R. Broderick +2
We present the phase diagram of the mean-field driven-dissipative Bose-Hubbard dimer model. For a dimer with repulsive on-site interactions () and coherent driving we prove th…
Low-cost Wireless Condition Monitoring for an Ultracold Atom Machine
Matthew Chilcott, Niels Kjærgaard
We present a flexible wireless monitoring system forbcondition-based maintenance and diagnostics tailored for dynamic and complex experimental setups encountered in modern research…
A digital PID controller for stabilizing large electric currents to the ppm level for Feshbach resonance studies
Ryan Thomas, Niels Kjærgaard
Magnetic Feshbach resonances are a key tool in the field of ultracold quantum gases, but their full exploitation requires the generation of large, stable magnetic fields up to 1000…
Absorption Spectra, Defect Site Distribution and Upconversion Excitation Spectra of CaF/SrF/BaF:Yb:Er Nanoparticles
Sangeetha Balabhadra, Michael F. Reid, Vladimir Golovko +1
We report studies of the Yb site distribution in Er co-doped upconverting alkaline earth fluoride nanoparticles using high-resolution absorption measurements. Similar…
Dynamics of Hot Bose-Einstein Condensates: stochastic Ehrenfest relations for number and energy damping
Rob G. McDonald, Peter S. Barnett, Fradom Atayee +1
Describing partially-condensed Bose gases poses a long-standing theoretical challenge. We present exact stochastic Ehrenfest relations for the stochastic projected Gross-Pitaevskii…
Equalization of pulse timings in an excitable microlaser system with delay
Soizic Terrien, V. Anirudh Pammi, Neil G. R. Broderick +5
An excitable semiconductor micropillar laser with delayed optical feedback is able to regenerate pulses by the excitable response of the laser. It has been shown that almost any pu…
Cavity dark mode of distant coupled atom-cavity systems
Donald H. White, Shinya Kato, Nikolett Nemet +2
We report on a combined experimental and theoretical investigation into the normal modes of an all-fiber coupled cavity-quantum-electrodynamics system. The interaction between atom…
Atom interferometry using -kicked and finite duration pulse-sequences
Boris Daszuta, Mikkel F. Andersen
We investigate an atom interferometer in which large momentum differences between the arms are obtained by using quantum resonances in the atom optics -kicked rotor. The interfe…
Increasing signal amplitude in electrical impedance tomography of neural activity using a parallel resistor inductor capacitor (RLC) circuit
James Hope, Zaid Aqrawe, Marshall Lim +2
Objective: To increase the impedance signal amplitude produced during neural activity using a novel approach of implementing a parallel resistor inductor capacitor (RLC) circuit ac…
Coherent conversion between microwave and optical photons -- an overview of physical implementations
Nicholas J. Lambert, Alfredo Rueda, Florian Sedlmeir +1
Quantum information technology based on solid state qubits has created much interest in converting quantum states from the microwave to the optical domain. Optical photons, unlike…
Quantum phases of tilted dipolar bosons in two-dimensional optical lattice
Soumik Bandyopadhyay, Rukmani Bai, Sukla Pal +3
We consider a minimal model to describe the quantum phases of ultracold dipolar bosons in two-dimensional (2D) square optical lattices. The model is a variation of the extended Bos…
Splitting and recombination of bright-solitary-matter waves
Oliver J. Wales, Ana Rakonjac, Thomas P. Billam +3
Solitons are long-lived wavepackets that propagate without dispersion and exist in a wide range of one-dimensional (1D) nonlinear systems. A Bose-Einstein condensate trapped in a q…