Results 21 to 30 of about 16,495,539 (312)

Quantum-Tailored Machine-Learning Characterization of a Superconducting Qubit

open access: yesPRX Quantum, 2021
Machine learning (ML) is a promising approach for performing challenging quantum-information tasks such as device characterization, calibration, and control.
Élie Genois   +7 more
doaj   +1 more source

A general quantum algorithm for open quantum dynamics demonstrated with the Fenna-Matthews-Olson complex [PDF]

open access: yesQuantum, 2022
Using quantum algorithms to simulate complex physical processes and correlations in quantum matter has been a major direction of quantum computing research, towards the promise of a quantum advantage over classical approaches.
Zixuan Hu   +4 more
doaj   +1 more source

Quantum physics and biology: the local wavefunction approach

open access: yesJournal of Physics: Conference Series, 2023
Abstract Is there a single linearly evolving Wave Function of the Universe that is able to lead to all the nonlinearities we see around us? This proposal seems a priori highly implausible. I claim that instead, in the real Universe, generically only local wave functions exist.
openaire   +2 more sources

Primitive Ontology and the Structure of Fundamental Physical Theories [PDF]

open access: yes, 2012
For a long time, it was believed that it was impossible to be realist about quantum mechanics. It took quite a while for the researchers in the foundations of physics, beginning with John Stuart Bell (1987), to convince others that such an alleged ...
Allori, Valia, Valia Allori
core   +1 more source

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

Advances in Modeling of Noisy Quantum Computers: Spin Qubits in Semiconductor Quantum Dots

open access: yesIEEE Access, 2023
The new quantum era is expected to have an unprecedented social impact, enabling the research of tomorrow in several pivotal fields. These perspectives require a physical system able to encode, process and store for a sufficiently long amount of time the
Davide Costa   +3 more
doaj   +1 more source

Quantum thermometry using the ac Stark shift within the Rabi model [PDF]

open access: yes, 2013
This work was supported by the EPSRC, the National Research Foundation and Ministry of Education, Singapore, and the Royal Society.A quantum two-level system coupled to a harmonic oscillator represents a ubiquitous physical system.
Higgins, Kieran D. B.   +8 more
core   +1 more source

Toy Models of a Nonassociative Quantum Mechanics

open access: yesAdvances in High Energy Physics, 2007
Toy models of a nonassociative quantum mechanics are presented. The Heisenberg equation of motion is modified using a nonassociative commutator. Possible physical applications of a nonassociative quantum mechanics are considered.
Vladimir Dzhunushaliev
doaj   +1 more source

From Rotations to Unitaries: Reversible Quantum Processes and the Emergence of the SU(2)−SO(3) Homomorphism [PDF]

open access: yesRevista Brasileira de Ensino de Física
We present an operational reconstruction of the well-known two-to-one homomorphism between the groups SU(2) and SO(3), grounded in the physical description of quantum state preparation and evolution.
V.G Valle, B.F. Rizzuti
doaj   +1 more source

Socio-Economic Sciences: Beyond Quantum Math-like Formalisms

open access: yesQuantum Reports, 2021
Since the beginning of the 21st century, a new interdisciplinary research movement has started, which aims at developing quantum math-like (or simply quantum-like) models to provide an explanation for a variety of socio-economic processes and human ...
Vikram Athalye, Emmanuel Haven
doaj   +1 more source

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