Results 11 to 20 of about 86 (82)
The Information‐Complete Quantum Theory
Quantum Engineering, Volume 2022, Issue 1, 2022., 2022 Quantum mechanics is a cornerstone of our current understanding of nature and extremely successful in describing physics covering a huge range of scales. However, its interpretation remains controversial since the early days of quantum mechanics. What does a quantum state really mean?
Zeng-Bing Chen, ShiJie Wei
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Donor Spins in Silicon for Quantum Technologies
Advanced Quantum Technologies, Volume 3, Issue 11, November 2020., 2020 Donor atoms in silicon are among the most coherent quantum systems in the solid state, and can be integrated with industry‐standard manufacturing methods. This review and perspective article describes applications of single donors in quantum computing, sensing and chaos, and donor ensembles for quantum memories.
Andrea Morello +3 more
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Implementing and Characterizing Precise Multiqubit Measurements
Physical Review X, 2016 There are two general requirements to harness the computational power of quantum mechanics: the ability to manipulate the evolution of an isolated system and the ability to faithfully extract information from it.
J. Z. Blumoff +14 more
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Probabilistically cloning two single-photon states using weak cross-Kerr nonlinearities
New Journal of Physics, 2014 By using quantum nondemolition detectors (QNDs) based on weak cross-Kerr nonlinearities, we propose an experimental scheme for achieving $1\to 2$ probabilistic quantum cloning (PQC) of a single-photon state, secretly choosing from a two-state set. In our
Wen Zhang +3 more
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Coherent nonlinear optics of quantum emitters in nanophotonic waveguides
Nanophotonics, Volume 8, Issue 10, Page 1641-1657, June 2018., 2018 Abstract Coherent quantum optics, where the phase of a photon is not scrambled as it interacts with an emitter, lies at the heart of many quantum optical effects and emerging technologies. Solid‐state emitters coupled to nanophotonic waveguides are a promising platform for quantum devices, as this element can be integrated into complex photonic chips ...
Pierre Türschmann +7 more
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An Experiment and Detection Scheme for Cavity‐Based Light Cold Dark Matter Particle Searches
Advances in High Energy Physics, Volume 2017, Issue 1, 2017., 2017 A resonance detection scheme and some useful ideas for cavity‐based searches of light cold dark matter particles (such as axions) are presented, as an effort to aid in the on‐going endeavors in this direction as well as for future experiments, especially in possibly developing a table‐top experiment.
Masroor H. S. Bukhari +2 more
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A Method for the Measurement of Photons Number and Squeezing Parameter in a Quantum Cavity
International Scholarly Research Notices, Volume 2013, Issue 1, 2013., 2013 Measurement of photons number in a quantum cavity is very difficult and the photons number is changed after each measurement. Recently, many efforts have been done for the nondemolition measurement methods. Haroche et al. succeed in recognizing existence or nonexistence of one photon in a quantum cavity.
Ghasem Naeimi +5 more
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Universal Dynamical Control of Open Quantum Systems
International Scholarly Research Notices, Volume 2013, Issue 1, 2013., 2013 Due to increasing demands on speed and security of data processing, along with requirements on measurement precision in fundamental research, quantum phenomena are expected to play an increasing role in future technologies. Special attention must hence be paid to omnipresent decoherence effects, which hamper quantumness.
Gershon Kurizki +4 more
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Closed‐Loop and Robust Control of Quantum Systems
The Scientific World Journal, Volume 2013, Issue 1, 2013., 2013 For most practical quantum control systems, it is important and difficult to attain robustness and reliability due to unavoidable uncertainties in the system dynamics or models. Three kinds of typical approaches (e.g., closed‐loop learning control, feedback control, and robust control) have been proved to be effective to solve these problems. This work
Chunlin Chen +4 more
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State‐Dependent Implication and Equivalence in Quantum Logic
Advances in Mathematical Physics, Volume 2012, Issue 1, 2012., 2012 Ideal occurrence of an event (projector) E leads to the known change of a state (density operator) ρ into EρE/[tr(Eρ)] (the Lüders state). It is shown that two events E and F give the same Lüders state if and only if the equivalence relation Eρ = Fρ is valid. This relation determines equivalence classes.
Fedor Herbut, Emilio Elizalde
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