Search Results - "Lehnert, W."
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Cavity Quantum Acoustic Device in the Multimode Strong Coupling Regime
Published in Physical review letters (01-06-2018)“…We demonstrate an acoustical analog of a circuit quantum electrodynamics system that leverages acoustic properties to enable strong multimode coupling in the…”
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2
Resolving Phonon Fock States in a Multimode Cavity with a Double-Slit Qubit
Published in Physical review. X (01-06-2019)“…We resolve phonon number states in the spectrum of a superconducting qubit coupled to a multimode acoustic cavity. Crucial to this resolution is the sharp…”
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3
Phonon-Number-Sensitive Electromechanics
Published in Physical review letters (02-11-2018)“…We use the strong intrinsic nonlinearity of a microwave superconducting qubit with a 4 GHz transition frequency to directly detect and control the energy of a…”
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4
Coherent state transfer between itinerant microwave fields and a mechanical oscillator
Published in Nature (London) (14-03-2013)“…The state of an itinerant microwave field can be coherently transferred into, stored in and retrieved from a mechanical oscillator with amplitudes at the…”
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5
Bilayer CrN/Cr coating-modified 316L stainless steel bipolar plates for high temperature polymer electrolyte fuel cells
Published in Journal of Power Sources (15-09-2019)“…In this work, a bilayer CrN/Cr coating was deposited on the surface of a 0.1 mm-thick SS316L specimen with a size of 60 × 60 mm by means of a reactive…”
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6
Bidirectional and efficient conversion between microwave and optical light
Published in Nature physics (01-04-2014)“…Converting low-frequency electrical signals into much higher-frequency optical signals has enabled modern communication networks to leverage the strengths of…”
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7
Performance and degradation of an SOEC stack with different cell components
Published in Electrochimica acta (20-12-2017)“…High temperature water electrolysis with solid oxide electrolysis cells (SOECs) is a promising method for hydrogen production. In order to study the…”
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8
Laser Cooling of a Micromechanical Membrane to the Quantum Backaction Limit
Published in Physical review letters (12-02-2016)“…The radiation pressure of light can act to damp and cool the vibrational motion of a mechanical resonator, but even if the light field has no thermal…”
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Sideband cooling of micromechanical motion to the quantum ground state
Published in Nature (London) (21-07-2011)“…Micromechanical motion grounded It has been a long-standing goal in the field of cavity optomechanics to cool down a mechanical resonator to its motional…”
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10
Entangling Mechanical Motion with Microwave Fields
Published in Science (American Association for the Advancement of Science) (08-11-2013)“…When two physical systems share the quantum property of entanglement, measurements of one system appear to determine the state of the other. This peculiar…”
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11
Deterministic entanglement of superconducting qubits by parity measurement and feedback
Published in Nature (London) (17-10-2013)“…A time-resolved, continuous parity measurement of two superconducting qubits in a three-dimensional circuit quantum electrodynamics architecture is reported;…”
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12
F-18 labelled PSMA-1007: biodistribution, radiation dosimetry and histopathological validation of tumor lesions in prostate cancer patients
Published in European journal of nuclear medicine and molecular imaging (01-04-2017)“…Purpose The prostate-specific membrane antigen (PSMA) targeted positron-emitting-tomography (PET) tracer 68 Ga-PSMA-11 shows great promise in the detection of…”
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13
Feedback control of a solid-state qubit using high-fidelity projective measurement
Published in Physical review letters (10-12-2012)“…We demonstrate feedback control of a superconducting transmon qubit using discrete, projective measurement and conditional coherent driving. Feedback realizes…”
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14
A review of cell-scale multiphase flow modeling, including water management, in polymer electrolyte fuel cells
Published in Applied energy (15-10-2016)“…•The transport expressions inside PEFC GDLs are developed to describe significantly different systems.•Insight into the fundamental processes of liquid water…”
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15
Widely Tunable On-Chip Microwave Circulator for Superconducting Quantum Circuits
Published in Physical review. X (22-11-2017)“…We report on the design and performance of an on-chip microwave circulator with a widely (GHz) tunable operation frequency. Nonreciprocity is created with a…”
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16
Non-classical energy squeezing of a macroscopic mechanical oscillator
Published in Nature physics (01-03-2021)“…Optomechanics and electromechanics have made it possible to prepare macroscopic mechanical oscillators in their quantum ground states 1 , in…”
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Faithful conversion of propagating quantum information to mechanical motion
Published in Nature physics (01-12-2017)“…Combining micrometre-sized mechanical resonators with superconducting quantum circuits, quantum information encoded with photons now can be converted to the…”
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First Results from a Microwave Cavity Axion Search at 24 μeV
Published in Physical review letters (09-02-2017)“…We report on the first results from a new microwave cavity search for dark matter axions with masses above 20 μeV. We exclude axion models with two-photon…”
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Experimental Constraint on Axionlike Particles over Seven Orders of Magnitude in Mass
Published in Physical review letters (30-04-2021)“…We use our recent electric dipole moment (EDM) measurement data to constrain the possibility that the HfF^{+} EDM oscillates in time due to interactions with…”
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Millisecond charge-parity fluctuations and induced decoherence in a superconducting transmon qubit
Published in Nature communications (28-05-2013)“…The tunnelling of quasiparticles across Josephson junctions in superconducting quantum circuits is an intrinsic decoherence mechanism for qubit degrees of…”
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