Results 31 to 40 of about 259,803 (278)

Adaptive recurrence quantum entanglement distillation for two-Kraus-operator channels [PDF]

open access: yes, 2017
Quantum entanglement serves as a valuable resource for many important quantum operations. A pair of entangled qubits can be shared between two agents by first preparing a maximally entangled qubit pair at one agent, and then sending one of the qubits to ...
Dai, Wenhan   +2 more
core   +2 more sources

On quantum algorithms

open access: yesComplexity, 1998
15 pages, 8 ...
Cleve, R   +4 more
openaire   +4 more sources

Recompilation-enhanced simulation of electron–phonon dynamics on IBM quantum computers

open access: yesNew Journal of Physics, 2022
Simulating quantum systems is believed to be one of the first applications for which quantum computers may demonstrate a useful advantage. For many problems in physics, we are interested in studying the evolution of the electron–phonon Hamiltonian, for ...
Benjamin Jaderberg   +3 more
doaj   +1 more source

Distribution of interference in random quantum algorithms [PDF]

open access: yes, 2006
We study the amount of interference in random quantum algorithms using a recently derived quantitative measure of interference. To this end we introduce two random circuit ensembles composed of random sequences of quantum gates from a universal set ...
A. Barenco   +7 more
core   +4 more sources

Quantum chaos and quantum algorithms [PDF]

open access: yesPhysical 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 ...
openaire   +2 more sources

Quantum Portfolios [PDF]

open access: yes, 2001
Quantum computation holds promise for the solution of many intractable problems. However, since many quantum algorithms are stochastic in nature they can only find the solution of hard problems probabilistically. Thus the efficiency of the algorithms has
B. A. Huberman   +17 more
core   +2 more sources

Quantum Computing and a Unified Approach to Fast Unitary Transforms

open access: yes, 2002
A quantum computer directly manipulates information stored in the state of quantum mechanical systems. The available operations have many attractive features but also underly severe restrictions, which complicate the design of quantum algorithms.
Agaian, Sos S., Klappenecker, Andreas
core   +1 more source

Interfacing external quantum devices to a universal quantum computer. [PDF]

open access: yesPLoS ONE, 2011
We present a scheme to use external quantum devices using the universal quantum computer previously constructed. We thereby show how the universal quantum computer can utilize networked quantum information resources to carry out local computations.
Antonio A Lagana   +2 more
doaj   +1 more source

Quantum machine learning for quantum anomaly detection

open access: yes, 2017
Anomaly detection is used for identifying data that deviate from `normal' data patterns. Its usage on classical data finds diverse applications in many important areas like fraud detection, medical diagnoses, data cleaning and surveillance.
Liu, Nana, Rebentrost, Patrick
core   +1 more source

Hybrid Quantum-Classical Eigensolver without Variation or Parametric Gates

open access: yesQuantum Reports, 2021
The use of near-term quantum devices that lack quantum error correction, for addressing quantum chemistry and physics problems, requires hybrid quantum-classical algorithms and techniques. Here, we present a process for obtaining the eigenenergy spectrum
Pejman Jouzdani, Stefan Bringuier
doaj   +1 more source

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