Results 41 to 50 of about 260,825 (178)
Distribution of interference in random quantum algorithms [PDF]
, 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
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Recompilation-enhanced simulation of electron–phonon dynamics on IBM quantum computers
New 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
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 ...
openaire +2 more sources
Interfacing external quantum devices to a universal quantum computer. [PDF]
PLoS 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
, 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
Simulating quantum mechanics on a quantum computer [PDF]
, 1997 Algorithms are described for efficiently simulating quantum mechanical systems on quantum computers. A class of algorithms for simulating the Schrodinger equation for interacting many-body systems are presented in some detail. These algorithms would make
Abrams +34 more
core +5 more sources
Hybrid Quantum-Classical Eigensolver without Variation or Parametric Gates
Quantum 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
Quantum Computing and a Unified Approach to Fast Unitary Transforms
, 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
, 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