3.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- The Dodd-Walls Centre for Photonic and Quantum TechnologiesNZ255 papers
- The University of QueenslandAU54 papers
- University of OxfordGB27 papers
- Centre National de la Recherche ScientifiqueFR25 papers
- MacDiarmid Institute for Advanced Materials and NanotechnologyNZ24 papers
- Australian National UniversityAU23 papers
- California Institute of TechnologyUS21 papers
- University of WollongongAU19 papers
- ARC Centre of Excellence for Engineered Quantum SystemsAU18 papers
- University of ArizonaUS18 papers
- University of AucklandNZ18 papers
- University of California, BerkeleyUS17 papers
76 papers · 1 filter
Counterdiabatic driving for random-gap Landau-Zener transitions
Georgios Theologou, Mikkel F. Andersen, Sandro Wimberger
The Landau--Zener (LZ) model describes a two-level quantum system that undergoes an avoided crossing. In the adiabatic limit, the transition probability vanishes. An auxiliary cont…
Modeling of simple bandpass filters: bandwidth broadening of Josephson parametric devices due to non-Markovian coupling to dressed transmission-line modes
Rui Yang, Zheng Shi, Zhirong Lin +1
Josephson parametric devices are widely used in superconducting quantum computing research but suffer from an inherent gain-bandwidth trade-off. This limitation is partly overcome…
Simulation of a rapid qubit readout dependent on the transmission of a single fluxon
Waltraut Wustmann, Kevin D. Osborn
The readout speed of qubits is a major limitation for error correction in quantum information science. We show simulations of a proposed device that gives readout of a fluxonium qu…
EIT Spectroscopy of Rydberg Levels Dressed by Linearly Polarized RF fields: Complementary Angular Response for Two Types of Transition Ladders
Matthew Cloutman, Matthew Chilcott, Alexander Elliott +3
Rydberg atoms efficiently link photons between the radio-frequency (RF) and optical domains. They furnish a medium in which the presence of an RF-field imprints on the transmission…
Long optical coherence times and coherent rare earth-magnon coupling in a rare earth doped anti-ferromagnet
Masaya Hiraishi, Zachary H. Roberts, Gavin G. G. King +2
Rare-earth ions are characterised by transitions with very narrow linewidths even in solid state crystals. Exceedingly long coherence times have been shown on both spin and optical…
Polarization-insensitive microwave electrometry using Rydberg atoms
M. Cloutman, M. Chilcott, A. Elliott +3
We investigate the Autler-Townes splitting for Rydberg atoms dressed with linearly polarized microwave radiation, resonant with generic and $S_{1/…
Distant RF field sensing with a passive Rydberg-atomic transducer
J. S. Otto, M. Chilcott, A. B. Deb +1
We combine a rubidium vapor cell with a corner-cube prism reflector to form a passive RF transducer, allowing the detection of microwave signals at a location distant from the acti…
Signatures of superradiance as a witness to multipartite entanglement
Frederik Lohof, Daniel Schumayer, David A. W. Hutchinson +1
Generation and detection of entanglement is at the forefront of most quantum information technologies. There is a plethora of techniques that reveal entanglement on the basis of on…
Microwave-optical double resonance in a erbium-doped whispering-gallery-mode resonator
Li Ma, Luke S. Trainor, Gavin G. G. King +2
We showcase an erbium-doped whispering-gallery-mode resonator with optical modes that display intrinsic quality factors better than (linewidths less than 2 MHz), and couplin…
Improving quantum annealing by engineering the coupling to the environment
Mojdeh S. Najafabadi, Daniel Schumayer, Chee Kong Lee +2
A large class of optimisation problems can be mapped to the Ising model where all details are encoded in the coupling of spins. The task of the original mathematical optimisation i…
The Zeeman and hyperfine interactions of a single ion in Si
Jiliang Yang, Wenda Fan, Yangbo Zhang +10
Er-doped Si is a promising candidate for quantum information applications due to its telecom wavelength optical transition and its compatibility with Si nanofabrication technologie…
Classical model for survival resonances close to Talbot time
Mikkel F. Andersen, Sandro Wimberger
We present a classical approximation for the peaks of survival resonances occurring when diffracting matter waves from absorption potentials. Generally our simplified model describ…
Probing Strong Coupling between a Microwave Cavity and a Spin Ensemble with Raman Heterodyne Spectroscopy
Gavin G. G. King, Peter S. Barnett, John G. Bartholomew +2
Raman heterodyne spectroscopy is a powerful tool for characterizing the energy and dynamics of spins. The technique uses an optical pump to transfer coherence from a spin transitio…
Data capacity scaling of a distributed Rydberg atomic receiver array
J. Susanne Otto, Marisol K. Hunter, Niels Kjærgaard +1
The data transfer capacity of a communication channel is limited by the Shannon-Hartley theorem and scales as for a single channel with the power sig…
Strong zero-field Förster resonances in K-Rb Rydberg systems
J. Susanne Otto, Niels Kjærgaard, Amita B. Deb
We study resonant dipole-dipole coupling and the associated van der Waals energy shifts in Rydberg excited atomic rubidium and potassium and investigate Förster resonances between…
Theory of Microwave-Optical Conversion Using Rare-Earth Ion Dopants
Peter S. Barnett, Jevon J. Longdell
We develop a theoretical description of a device for coherent conversion of microwave to optical photons. For the device, dopant ions in a crystal are used as three-level systems,…
Thermal Noise in Electro-Optic Devices at Cryogenic Temperatures
Sonia Mobassem, Nicholas J. Lambert, Alfredo Rueda +3
The quantum bits (qubits) on which superconducting quantum computers are based have energy scales corresponding to photons with GHz frequencies. The energy of photons in the gigahe…
Cavity quantum electro-optics: Microwave-telecom conversion in the quantum ground state
William Hease, Alfredo Rueda, Rishabh Sahu +4
Fiber optic communication is the backbone of our modern information society, offering high bandwidth, low loss, weight, size and cost, as well as an immunity to electromagnetic int…
Direct Measurements of Collisional Dynamics in Cold Atom Triads
L. A. Reynolds, E. Schwartz, U. Ebling +3
The introduction of optical tweezers for trapping atoms has opened remarkable opportunities for manipulating few-body systems. Here, we present the first bottom-up assembly of atom…
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…
Controlled creation of three-dimensional vortex structures in Bose--Einstein condensates using artificial magnetic fields
James Schloss, Peter Barnett, Rashi Sachdeva +1
The physics of quantized vortex excitations in atomic Bose-Einstein condensates has been extensively studied in recent years.Although simple vortex lines are relatively easy to cre…
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…
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…
Making sense of the divergent series for reconstructing a Hamiltonian from its eigenstates and eigenvalues
Carl M. Bender, Dorje C. Brody, Matthew F. Parry
In quantum mechanics the eigenstates of the Hamiltonian form a complete basis. However, physicists conventionally express completeness as a formal sum over the eigenstates, and thi…