993 citations · 3.7k across the 41 of their papers we have counts for
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Deterministic Mechanical Wigner Negativity via Nonlinear Cavity Quantum Optomechanics in the Unresolved-Sideband Regime
Jack Clarke, Pascal Neveu, Ewold Verhagen +1
Non-Gaussian quantum states of mechanical motion exhibiting Wigner negativity offer promising capabilities for quantum technologies and tests of fundamental physics. Within the fie…
Optimizing confidence in negative-partial-transpose-based entanglement criteria
Lydia A. Kanari-Naish, Jack Clarke, Sofia Qvarfort +1
A key requirement of any separable quantum state is that its density matrix has a positive partial transpose. For continuous bipartite quantum states, violation of this condition m…
Theoretical framework for enhancing or enabling cooling of a mechanical resonator via the anti-Stokes or Stokes interaction and zero-photon detection
Jack Clarke, Evan A. Cryer-Jenkins, Arjun Gupta +11
We develop a theoretical framework to describe how zero-photon detection may be utilized to enhance laser cooling via the anti-Stokes interaction and, somewhat surprisingly, enable…
Enhanced Laser Cooling of a Mechanical Resonator via Zero-Photon Detection
Evan A. Cryer-Jenkins, Kyle D. Major, Jack Clarke +11
Throughout quantum science and technology, measurement is used as a powerful resource for nonlinear operations and quantum state engineering. In particular, single-photon detection…
Cavity quantum optomechanical nonlinearities and position measurement beyond the breakdown of the linearized approximation
Jack Clarke, Pascal Neveu, Kiran E. Khosla +2
Several optomechanics experiments are now entering the highly sought nonlinear regime where optomechanical interactions are large even for low light levels. Within this regime, new…
Can the displacemon device test objective collapse models?
Lydia A. Kanari-Naish, Jack Clarke, Michael R. Vanner +1
Testing the limits of the applicability of quantum mechanics will deepen our understanding of the universe and may shed light on the interplay between quantum mechanics and gravity…
Two-mode Schrödinger-cat states with nonlinear optomechanics: generation and verification of non-Gaussian mechanical entanglement
Lydia A. Kanari-Naish, Jack Clarke, Sofia Qvarfort +1
Cavity quantum optomechanics has emerged as a new platform for quantum science and technology with applications ranging from quantum-information processing to tests of the foundati…
Non-Gaussian mechanical motion via single and multi-phonon subtraction from a thermal state
Georg Enzian, Lars Freisem, John J. Price +7
Quantum optical measurement techniques offer a rich avenue for quantum control of mechanical oscillators via cavity optomechanics. In particular, a powerful yet little explored com…
Preparation and Verification of Two-Mode Mechanical Entanglement Through Pulsed Optomechanical Measurements
Pascal Neveu, Jack Clarke, Michael R. Vanner +1
We propose a protocol how to generate and verify bipartite Gaussian entanglement between two mechanical modes coupled to a single optical cavity, by means of short optical pulses a…
Master-equation treatment of nonlinear optomechanical systems with optical loss
Sofia Qvarfort, Michael R. Vanner, P. F. Barker +1
Open-system dynamics play a key role in the experimental and theoretical study of cavity optomechanical systems. In many cases, the quantum Langevin equations have enabled excellen…
Single-Phonon Addition and Subtraction to a Mechanical Thermal State
Georg Enzian, John J. Price, Lars Freisem +5
Adding or subtracting a single quantum of excitation to a thermal state of a bosonic system has the counter-intuitive effect of approximately doubling its mean occupation. We perfo…
Mechanical squeezing via fast continuous measurement
Chao Meng, George A. Brawley, James S. Bennett +2
We revisit quantum state preparation of an oscillator by continuous linear position measurement. Quite general analytical expressions are derived for the conditioned state of the o…
Generating mechanical and optomechanical entanglement via pulsed interaction and measurement
J. Clarke, P. Sahium, K. E. Khosla +3
Entanglement generation at a macroscopic scale offers an exciting avenue to develop new quantum technologies and study fundamental physics on a tabletop. Cavity quantum optomechani…
Quantum Hypercube States
L. A. Howard, T. J. Weinhold, F. Shahandeh +4
We introduce quantum hypercube states, a class of continuous-variable quantum states that are generated as orthographic projections of hypercubes onto the quadrature phase-space of…
Growing macroscopic superposition states via cavity quantum optomechanics
Jack Clarke, Michael R. Vanner
The investigation of macroscopic quantum phenomena is a current active area of research that offers significant promise to advance the forefronts of both fundamental and applied qu…
Displacemon electromechanics: how to detect quantum interference in a nanomechanical resonator
Kiran E. Khosla, Michael R. Vanner, Natalia Ares +1
We introduce the `displacemon' electromechanical architecture that comprises a vibrating nanobeam, e.g. a carbon nanotube, flux coupled to a superconducting qubit. This platform ca…
Quantum optomechanics beyond the quantum coherent oscillation regime
Kiran Khosla, George A. Brawley, Michael R. Vanner +1
Interaction with a thermal environment decoheres the quantum state of a mechanical oscillator. When the interaction is sufficiently strong, such that more than one thermal phonon i…
Arbitrary Multi-Qubit Generation
Farid Shahandeh, Austin P. Lund, Timothy C. Ralph +1
We propose and analyse a scheme for single-rail-encoded arbitrary multi-qubit quantum-state generation to provide a versatile tool for quantum optics and quantum information applic…
Quantum and Classical Phases in Optomechanics
Federico Armata, Ludovico Latmiral, Igor Pikovski +3
The control of quantum systems requires the ability to change and read-out the phase of a system. The non-commutativity of canonical conjugate operators can induce phases on quantu…
Generation of mechanical interference fringes by multi-photon counting
M. Ringbauer, T. J. Weinhold, L. A. Howard +2
Exploring the quantum behaviour of macroscopic objects provides an intriguing avenue to study the foundations of physics and to develop a suite of quantum-enhanced technologies. On…
Non-classical state generation in macroscopic systems via hybrid discrete-continuous quantum measurements
T. J. Milburn, M. S. Kim, M. R. Vanner
Non-classical state generation is an important component throughout experimental quantum science for quantum information applications and probing the fundamentals of physics. Here,…
A Quantum Optomechanical Interface Beyond the Resolved Sideband Limit
James S. Bennett, Kiran Khosla, Lars S. Madsen +3
Mechanical oscillators which respond to radiation pressure are a promising means of transferring quantum information between light and matter. Optical--mechanical state swaps are a…
An opto-magneto-mechanical quantum interface between distant superconducting qubits
Keyu Xia, Michael R. Vanner, Jason Twamley
A quantum internet, where widely separated quantum devices are coherently connected, is a fundamental vision for local and global quantum information networks and processing. Super…
Towards Optomechanical Quantum State Reconstruction of Mechanical Motion
M. R. Vanner, I. Pikovski, M. S. Kim
Utilizing the tools of quantum optics to prepare and manipulate quantum states of motion of a mechanical resonator is currently one of the most promising routes to explore non-clas…