Results 21 to 30 of about 50 (50)
, 2022 This thesis centers on how to use exotic lattices in different ways to design potential quantum simulators. These exotic lattices are either real physical objects in the form of ultra cold atoms in bipartite optical lattice systems or lattice models revealed in state space.
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Quantumness of correlations, quantumness of ensembles and quantum data hiding [PDF]
New Journal of Physics, 2014 We study the quantumness of correlations for ensembles of bi- and multi-partite systems and relate it to the task of quantum data hiding. Quantumness is here intended in the sense of minimum average disturbance under local measurements. We consider a very general framework, but focus on local complete von Neumann measurements as cause of the ...
John Calsamiglia +3 more
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Quantum automata and quantum grammars
Theoretical Computer Science, 2000 To study quantum computation, it might be helpful to generalize structures from language and automata theory to the quantum case. To that end, we propose quantum versions of finite-state and push-down automata, and regular and context-free grammars. We find analogs of several classical theorems, including pumping lemmas, closure properties, rational ...
James P. Crutchfield, Cristopher Moore
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Spintronics and Quantum Dots for Quantum Computing and Quantum Communication [PDF]
Fortschritte der Physik, 2000 Control over electron-spin states, such as coherent manipulation, filtering and measurement promises access to new technologies in conventional as well as in quantum computation and quantum communication. We review our proposal of using electron spins in quantum confined structures as qubits and discuss the requirements for implementing a quantum ...
Burkard, G., Engel, H. A., Loss, D.
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Quantum Speed Limit is Not Quantum [PDF]
Physical Review Letters, 2018 6 pages, 0 ...
Manaka Okuyama, Masayuki Ohzeki
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Quantum optics with quantum gases [PDF]
Laser Physics, 2009 Quantum optics with quantum gases represents a new field, where the quantum nature of both light and ultracold matter plays equally important role. Only very recently this ultimate quantum limit of light-matter interaction became feasible experimentally.
Helmut Ritsch +2 more
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The quantum field as a quantum computer [PDF]
Physics Letters A, 2012 4 PRL-style pages with 4 eps ...
Giacomo Mauro DʼAriano +1 more
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Quantum chaos and quantum algorithms [PDF]
Physical Review A, 2002 It was recently shown (quant-ph/9909074) that parasitic random interactions between the qubits in a quantum computer can induce quantum chaos and put into question the operability of a quantum computer. In this work I investigate whether already the interactions between the qubits introduced with the intention to operate the quantum computer may lead ...
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QUANTUM HOLONOMIES FOR QUANTUM COMPUTING [PDF]
International Journal of Modern Physics B, 2001 Holonomic Quantum Computation (HQC) is an all-geometrical approach to quantum information processing. In the HQC strategy information is encoded in degenerate eigen-spaces of a parametric family of Hamiltonians. The computational network of unitary quantum gates is realized by driving adiabatically the Hamiltonian parameters along loops in a control ...
Jiannis K. Pachos +2 more
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Quantum computers, quantum computing, and quantum thermodynamics
Frontiers in Quantum Science and TechnologyQuantum thermodynamics aims to extend standard thermodynamics and non-equilibrium statistical physics to systems with sizes well below the thermodynamic limit. It is a rapidly evolving research field that promises to change our understanding of the foundations of physics, while enabling the discovery of novel thermodynamic techniques and applications ...
Fabrizio Cleri, Fabrizio Cleri
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