Zobrazeno 1 - 10
of 137
pro vyhledávání: '"Croke, Sarah"'
We investigate the effects of the electromagnetic vacuum field on a harmonically bound electron. We show that in the electric-dipole approximation the model atom couples only to an effective one-dimensional electric field. In a simplified form, in wh
Externí odkaz:
http://arxiv.org/abs/2404.12959
We reanalyse the quantum damped harmonic oscillator, introducing three less than common features. These are (i) the use of a continuum model of the reservoir rather than an ensemble of discrete oscillators, (ii) an exact diagonalisation of the Hamilt
Externí odkaz:
http://arxiv.org/abs/2306.15013
We detail a quantum circuit capable of efficiently encoding analytical approximations to gravitational wave signal waveforms of compact binary coalescences into the amplitudes of quantum bits using both quantum arithmetic operations and hybrid classi
Externí odkaz:
http://arxiv.org/abs/2306.11073
Autor:
Croke, Sarah
One notion of non-locality in quantum theory is the fact that information may be encoded in a composite system in such a way that it is not accessible through local measurements, even with the assistance of classical communication. Thus, contrary to
Externí odkaz:
http://arxiv.org/abs/2207.13138
Autor:
Khafaji, Mustafa A. Al, Cisowski, Claire M., Jimbrown, Harry, Croke, Sarah, Pádua, Sebastião, Franke-Arnold, Sonja
Publikováno v:
Optics Express Vol. 30, Issue 13, pp. 22396-22409 (2022)
Vector vortex beams, featuring independent spatial modes in orthogonal polarization components, offer an increase in information density for emerging applications in both classical and quantum communication technology. Recent advances in optical inst
Externí odkaz:
http://arxiv.org/abs/2205.07761
We consider measurement disturbance tradeoffs in quantum machine learning protocols which seek to learn about quantum data. We study the simplest example of a binary classification task, in the unsupervised regime. Specifically, we investigate how a
Externí odkaz:
http://arxiv.org/abs/2202.05584
Quantum computational devices, currently under development, have the potential to accelerate data analysis techniques beyond the ability of any classical algorithm. We propose the application of a quantum algorithm for the detection of unknown signal
Externí odkaz:
http://arxiv.org/abs/2109.01535
Autor:
Crickmore, Jonathan, Puthoor, Ittoop Vergheese, Ricketti, Berke, Croke, Sarah, Hillery, Mark, Andersson, Erika
Publikováno v:
Phys. Rev. Research 2, 013256, 2020
Quantum state elimination measurements tell us what states a quantum system does not have. This is different from state discrimination, where one tries to determine what the state of a quantum system is, rather than what it is not. Apart from being o
Externí odkaz:
http://arxiv.org/abs/2003.01800
Publikováno v:
Phys. Rev. A 100, 032122 (2019)
Multiple-copy state discrimination is a fundamental task in quantum information processing. If there are two, pure, non-orthogonal states then both local and collective schemes are known to reach the Helstrom bound, the maximum probability of success
Externí odkaz:
http://arxiv.org/abs/1906.11212
Publikováno v:
Phys. Rev. A 100, 063842 (2019)
Complex vectorial light fields, non-separable in their polarization and spatial degree of freedom, are of relevance in a wide variety of fields encompassing microscopy, metrology, communication and topological studies. Controversially, they have been
Externí odkaz:
http://arxiv.org/abs/1902.07988