Results 111 to 120 of about 4,180,684 (277)

Limits on atomic qubit control from laser noise

npj Quantum Information, 2022
Technical noise present in laser systems can limit their ability to perform high fidelity quantum control of atomic qubits. The ultimate fidelity floor for atomic qubits driven with laser radiation is due to spontaneous emission from excited energy ...
Matthew L. Day, Pei Jiang Low, Brendan White, Rajibul Islam, Crystal Senko   +4 more
doaj   +1 more source

Universal quantum computing with nanowire double quantum dots

, 2011
We show a method for implementing universal quantum computing using of a singlet and triplets of nanowire double quantum dots coupled to a one-dimensional transmission line resonator.
Xue, P.
core   +1 more source

Observing quantum coherence from photons scattered in free-space

Light: Science & Applications, 2021
Quantum channels in free-space, an essential prerequisite for fundamental tests of quantum mechanics and quantum technologies in open space, have so far been based on direct line-of-sight because the predominant approaches for photon-encoding, including ...
Shihan Sajeed, Thomas Jennewein
doaj   +1 more source

A Language and Hardware Independent Approach to Quantum-Classical Computing

, 2018
Heterogeneous high-performance computing (HPC) systems offer novel architectures which accelerate specific workloads through judicious use of specialized coprocessors.
Chen, Mengsu, Dumitrescu, Eugene F., Feng, Wu-chun, Humble, Travis S., Liakh, Dmitry, McCaskey, Alexander J.   +5 more
core   +1 more source

Quantum analogue computing [PDF]

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2010
We briefly review what a quantum computer is, what it promises to do for us and why it is so hard to build one. Among the first applications anticipated to bear fruit is the quantum simulation of quantum systems. While most quantum computation is an extension of classical digital computation, quantum simulation differs fundamentally in how the data are
William J. Munro, William J. Munro, Kae Nemoto, Vivien M. Kendon   +3 more
openaire   +6 more sources

Towards quantum computing with single atoms and optical cavities on atom chips

, 2006
We report on recent developments in the integration of optical microresonators into atom chips and describe some fabrication and implementation challenges.
A. Beige, Anderson MH, Barrett SD, Beige A, Bennett CH, Blinov BB, Cirac JI, Cook RJ, Dehmelt HG, Deutsch D, DiVincenzo DP, E. A. Hinds, Ekert AK, Eriksson S, Feynman RP, Folman R, Gollasch C, Grover LK, Guthöhrlein GR, Haase A, Hegerfeldt GC, Horak P, Häffner H, J. Metz, Jones MPA, Kielpinski D, Knill E, Kreuter A, Kuhn A, Kuhn A, Leibfried D, Lim YL, Lim YL, Long R, Louyer Y, M. Trupke, Marr C, Maunz P, Maunz P, McKeever J, Meter RV, Nußmann S, Nußmann S, Osnaghi S, Pachos J, Pellizzari T, Protsenko IE, Raussendorf R, Reichel J, Rekdal PK, Rosenblit M, Sauer JA, Sauer JA, Sinclair CDJ, Tregenna B, Treutlein P, Trupke M, Vahala KJ, Vandersypen LMK, Walther P, Ye J, Yi XX, Zheng S-B   +62 more
core   +1 more source

Fermionic Quantum Computation [PDF]

Annals of Physics, 2002
We define a model of quantum computation with local fermionic modes (LFMs) -- sites which can be either empty or occupied by a fermion. With the standard correspondence between the Foch space of $m$ LFMs and the Hilbert space of $m$ qubits, simulation of one fermionic gate takes $O(m)$ qubit gates and vice versa. We show that using different encodings,
Bravyi, Sergey B., Kitaev, Alexei Yu.
openaire   +7 more sources

Nonreciprocal quantum synchronization

Nature Communications
Nonreciprocal physics is garnering enormous attention in both classical and quantum resource fields. Surprisingly, previous demonstrations have not explored nonreciprocal quantum synchronization of phonons, one of the most obvious examples of ...
Deng-Gao Lai, Adam Miranowicz, Franco Nori   +2 more
doaj   +1 more source

Entanglement across separate silicon dies in a modular superconducting qubit device

npj Quantum Information, 2021
Assembling future large-scale quantum computers out of smaller, specialized modules promises to simplify a number of formidable science and engineering challenges.
Alysson Gold, J. P. Paquette, Anna Stockklauser, Matthew J. Reagor, M. Sohaib Alam, Andrew Bestwick, Nicolas Didier, Ani Nersisyan, Feyza Oruc, Armin Razavi, Ben Scharmann, Eyob A. Sete, Biswajit Sur, Davide Venturelli, Cody James Winkleblack, Filip Wudarski, Mike Harburn, Chad Rigetti   +17 more
doaj   +1 more source

Quantum Diagrams and Quantum Networks

, 2014
This paper is an introduction to diagrammatic methods for representing quantum processes and quantum computing. We review basic notions for quantum information and quantum computing.
Kauffman, Louis H., Lomonaco Jr, Samuel J.   +1 more
core   +1 more source