E
Emanuel Knill
Researcher at National Institute of Standards and Technology
Publications - 164
Citations - 21367
Emanuel Knill is an academic researcher from National Institute of Standards and Technology. The author has contributed to research in topics: Quantum computer & Quantum error correction. The author has an hindex of 64, co-authored 158 publications receiving 18849 citations. Previous affiliations of Emanuel Knill include Los Alamos National Laboratory & University of Colorado Boulder.
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Dynamical decoupling of open quantum systems
TL;DR: In this paper, a dynamical method for beating decoherence and dissipation in open quantum systems is proposed, which can be combined with the capability of retaining control over the effective dynamical evolution of the open quantum system.
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Theory of quantum error-correcting codes
Emanuel Knill,Raymond Laflamme +1 more
TL;DR: A general theory of quantum error correction based on encoding states into larger Hilbert spaces subject to known interactions is developed and necessary and sufficient conditions for the perfect recovery of an encoded state after its degradation by an interaction are obtained.
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Strong Loophole-Free Test of Local Realism.
Lynden K. Shalm,Evan Meyer-Scott,Bradley G. Christensen,Peter Bierhorst,Michael A. Wayne,Michael A. Wayne,Martin J. Stevens,Thomas Gerrits,Scott Glancy,Deny R. Hamel,Michael S. Allman,Kevin J. Coakley,Shellee D. Dyer,Carson Hodge,Adriana E. Lita,Varun B. Verma,Camilla Lambrocco,Edward Tortorici,Alan L. Migdall,Yanbao Zhang,Daniel Kumor,William H. Farr,Francesco Marsili,Matthew D. Shaw,Jeffrey A. Stern,Carlos Abellan,Waldimar Amaya,Valerio Pruneri,Thomas Jennewein,Morgan W. Mitchell,Paul G. Kwiat,Joshua C. Bienfang,Richard P. Mirin,Emanuel Knill,Sae Woo Nam +34 more
TL;DR: In this paper, the authors present a loophole-free violation of local realism using entangled photon pairs, ensuring that all relevant events in their Bell test are spacelike separated by placing the parties far enough apart and by using fast random number generators and high-speed polarization measurements.
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Quantum computing with realistically noisy devices
TL;DR: This work reports a simple architecture for fault-tolerant quantum computing, providing evidence that accurate quantum computing is possible for EPGs as high as three per cent, and shows that non-trivial quantum computations at EPG’s of as low as one per cent could be implemented.
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Deterministic quantum teleportation of atomic qubits.
Murray D. Barrett,Murray D. Barrett,John Chiaverini,Tobias Schaetz,Joseph W. Britton,Wayne M. Itano,John D. Jost,Emanuel Knill,Christopher Langer,Dietrich Leibfried,Roee Ozeri,David J. Wineland +11 more
TL;DR: Un unconditional teleportation of massive particle qubits using atomic (9Be+) ions confined in a segmented ion trap is reported, which achieves an average fidelity of 78 per cent, which exceeds the fidelity of any protocol that does not use entanglement.