keywords
- quantum sensors, quantum error correction, open quantum systems, quantum measurement, quantum hardware,
- Contact Info
Combes, Josh Assistant Professor
Positions
- Assistant Professor, Electrical, Computer and Energy Engineering (ECEE)
Research Areas
Research
Publications
selected publications
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conference proceeding
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Noise in Phase-Preserving Linear Amplifiers.
AIP Conference Proceedings.
53-58.
2012
- Experimental Demonstration of Adaptive Tomography and Self-Calibrating Tomography 2012
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Rapid state-reduction of quantum systems using feedback control
2006
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Noise in Phase-Preserving Linear Amplifiers.
AIP Conference Proceedings.
53-58.
2012
-
journal article
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Reproducible coherence characterization of superconducting quantum devices.
Applied Physics Letters.
100501-100501.
2021
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Quantum limits on noise for a class of nonlinear amplifiers.
Physical Review A.
2021
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A self-correcting qubit.
Nature Physics.
437-438.
2021
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Quantum Computing with Rotation-Symmetric Bosonic Codes.
Physical Review X.
2020
- Quantum Hypercube States. 020402-020402. 2019
- ac Flux Sweet Spots in Parametrically Modulated Superconducting Qubits. Physical Review Applied. 054015-054015. 2019
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Two-photon self-Kerr nonlinearities for quantum computing and quantum optics.
Physical Review A.
2018
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Nonreciprocity Realized with Quantum Nonlinearity.
Physical Review Letters.
2018
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Why protective measurement does not establish the reality of the quantum state.
189-211.
2018
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Qubit models of weak continuous measurements: markovian conditional and open-system dynamics.
Quantum Science and Technology.
2018
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Nonreciprocal atomic scattering: A saturable, quantum Yagi-Uda antenna.
Physical Review A.
2017
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Quantum trajectories for propagating Fock states.
Physical Review A.
2017
- Logical randomized benchmarking 2017
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The SLH framework for modeling quantum input-output networks.
Advances in Physics: X.
784-888.
2017
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Passive CPHASE Gate via Cross-Kerr Nonlinearities.
Physical Review Letters.
2016
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Two photons co- and counterpropagating through N cross-Kerr sites.
Physical Review A.
2016
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Quantum and classical control of single photon states via a mechanical resonator.
New Journal of Physics.
2016
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Models of reduced-noise, probabilistic linear amplifiers.
Physical Review A.
2016
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Practical Bayesian tomography.
New Journal of Physics.
2016
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Weak-value amplification: state of play
2016
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Cost of postselection in decision theory.
Physical Review A: Atomic, Molecular and Optical Physics.
2015
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Integrated quantum photonic sensor based on Hong-Ou-Mandel interference.
Optics Express.
16008-16023.
2015
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Comment on "How the Result of a Single Coin Toss Can Turn Out to be 100 Heads" Reply.
Physical Review Letters.
2015
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Rapid readout of a register of qubits using open-loop quantum control.
Physical Review A: Atomic, Molecular and Optical Physics.
2015
- Ferrie and Combes reply. 118902-118902. 2015
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Global versus local optimality in feedback-controlled qubit purification: new insights from minimizing Renyi entropies.
New Journal of Physics.
2014
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How the Result of a Single Coin Toss Can Turn Out to be 100 Heads.
Physical Review Letters.
2014
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Nonabsorbing high-efficiency counter for itinerant microwave photons.
Physical Review B: Condensed Matter and Materials Physics.
2014
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Quantum limits on postselected, probabilistic quantum metrology.
Physical Review A: Atomic, Molecular and Optical Physics.
2014
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Quantum Nondemolition Detection of a Propagating Microwave Photon.
Physical Review Letters.
2014
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Weak Value Amplification is Suboptimal for Estimation and Detection.
Physical Review Letters.
2014
- Classical correlation alone supplies the anomaly to weak values 2014
- In-situ characterization of quantum devices with error correction 2014
- Reply to comments on" Weak value amplification is suboptimal for estimation and detection" 2014
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Quantum limits on probabilistic amplifiers.
Physical Review A: Atomic, Molecular and Optical Physics.
2013
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Breakdown of the Cross-Kerr Scheme for Photon Counting.
Physical Review Letters.
2013
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Quantum limits on phase-preserving linear amplifiers.
Physical Review A: Atomic, Molecular and Optical Physics.
2012
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An interleaved sampling scheme for the characterization of single qubit dynamics.
Quantum Information Processing.
1523-1531.
2012
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Qubit purification speed-up for three complementary continuous measurements.
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences.
5291-5307.
2012
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Quantum filtering for systems driven by fields in single-photon states or superposition of coherent states.
Physical Review A: Atomic, Molecular and Optical Physics.
2012
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N-photon wave packets interacting with an arbitrary quantum system.
Physical Review A: Atomic, Molecular and Optical Physics.
2012
- Optimal rotation control for a qubit subject to continuous measurement 2012
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Characterization of a qubit Hamiltonian using adaptive measurements in a fixed basis.
Physical Review A: Atomic, Molecular and Optical Physics.
2011
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Maximum Information Gain in Weak or Continuous Measurements of Qudits: Complementarity Is Not Enough.
Physical Review X.
2011
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Quantum feedback for rapid state preparation in the presence of control imperfections.
Journal of Physics B: Atomic, Molecular and Optical Physics.
2011
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Rapid purification of quantum systems by measuring in a feedback-controlled unbiased basis.
Physical Review A: Atomic, Molecular and Optical Physics.
2010
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Replacing quantum feedback with open-loop control and quantum filtering.
Physical Review A: Atomic, Molecular and Optical Physics.
2010
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Rapid measurement of quantum systems using feedback control.
Physical Review Letters.
2008
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Rapid state reduction of quantum systems using feedback control.
Physical Review Letters.
2006
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States for phase estimation in quantum interferometry.
Journal of optics. B, Quantum and semiclassical optics : journal of the European Optical Society.
14-21.
2005
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Reproducible coherence characterization of superconducting quantum devices.
Applied Physics Letters.
100501-100501.
2021
Teaching
courses taught
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ECEN 3250 - Microelectronics
Primary Instructor - Fall 2021
Develops a basic understanding of active semiconductor devices. Focuses on building an understanding of BJT and CMOS devices in both digital and analog applications. -
ECEN 4033 - Special Topics
Primary Instructor - Fall 2020
Examines a special topic in Electrical, Computer and Energy Engineering. May be repeated up to 9 total credit hours. -
ECEN 5016 - Special Topics
Primary Instructor - Spring 2021
- -
ECEN 5033 - Special Topics
Primary Instructor - Fall 2020
Examines a special topic in Electrical, Computer and Energy Engineering. May be repeated up to 9 total credit hours.
Background
education and training
- Ph.D., Griffith University (Australia) 2010
- B.E.E., Griffith University (Australia) 2003
- B.S., Griffith University (Australia) 2001
International Activities
global connections related to teaching and scholarly work (in recent years)
- Australia and New Zealand Continent
- Europe Continent