Results 41 to 50 of about 81,094 (310)

Probing the strongly driven spin-boson model in a superconducting quantum circuit

open access: yesNature Communications, 2018
Two-level systems interacting with a bosonic environment appear everywhere in physics. Here, the authors use a superconducting device to study this spin-boson model in the presence of coherent driving, showing that the drive enhances dissipation into the
L. Magazzù   +8 more
doaj   +1 more source

T-count and T-depth of any multi-qubit unitary

open access: yesnpj Quantum Information, 2022
We design an algorithm to determine the (minimum) T-count of any n-qubit (n ≥ 1) unitary W of size 2 n  × 2 n , over the Clifford+T gate set. The space and time complexity of our algorithm are $$O\left({2}^{2n}\right)$$ O 2 2 n and $$O\left({2}^{2n ...
Vlad Gheorghiu   +2 more
doaj   +1 more source

QUANTUM HOLONOMIES FOR QUANTUM COMPUTING [PDF]

open access: yesInternational 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 ...
Pachos, Jiannis, Zanardi, Paolo
openaire   +3 more sources

Investigations in Quantum Computing: Causality and Graph Isomorphism [PDF]

open access: yes, 2004
In this thesis I explore two different types of limits on the time complexity of quantum computation---that is, limits on how much time is required to perform a given class of quantum operations on a quantum system. Upper limits can be found by explicit
Beckman, David Eugene
core   +1 more source

A Testing Pipeline for Quantum Computing Applications [PDF]

open access: yes, 2023
5459As the scientific community is increasing the coverage of the quantum computing domain ranging from theoretical physics to financial applications, so does the number of quantum computing applications being developed for quantum computing hardware ...
Gheorghe-Pop, Ilie-Daniel   +2 more
core   +1 more source

Adiabatic Quantum Computation is Equivalent to Standard Quantum Computation [PDF]

open access: yes45th Annual IEEE Symposium on Foundations of Computer Science, 2004
Adiabatic quantum computation has recently attracted attention in the physics and computer science communities, but its computational power was unknown. We describe an efficient adiabatic simulation of any given quantum algorithm, which implies that the adiabatic computation model and the conventional quantum computation model are polynomially ...
Dorit Aharonov   +5 more
openaire   +3 more sources

Quantum computers, quantum computing, and quantum thermodynamics

open access: yesFrontiers in Quantum Science and Technology
Quantum 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
openaire   +4 more sources

Quantum computation and quantum information [PDF]

open access: yesInternational Journal of Parallel, Emergent and Distributed Systems, 2006
The paper is intended to be a survey of all the important aspects and results that have shaped the field of quantum computation and quantum information. The reader is first familiarized with those features and principles of quantum mechanics providing a more efficient and secure information processing.
Marius Nagy, Selim G. Akl
openaire   +1 more source

Deep neural network analysis models for complex random telegraph signals

open access: yesScientific Reports, 2023
Time-fluctuating signals are ubiquitous and diverse in many physical, chemical, and biological systems, among which random telegraph signals (RTSs) refer to a series of instantaneous switching events between two discrete levels from single-particle ...
Marcel Robitaille   +4 more
doaj   +1 more source

Entropy computing, a paradigm for optimization in open photonic systems

open access: yesCommunications Physics
Finding better solutions to combinatorial optimization problems could have a large positive impact on many real-world application areas, such as logistics. For this reason, significant efforts have been made to design novel optimization paradigms.
Lac Nguyen   +16 more
doaj   +1 more source

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