Zobrazeno 1 - 10
of 134
pro vyhledávání: '"Vaia, Ruggero"'
Autor:
Nuzzi, Davide, Banchi, Leonardo, Vaia, Ruggero, Compagno, Enrico, Cuccoli, Alessandro, Verrucchi, Paola, Bose, Sougato
The Toffoli gate is the essential ingredient for reversible computing, an energy efficient classical computational paradigm that evades the energy dissipation resulting from Landauer's principle. In this paper we analyze different setups to realize a
Externí odkaz:
http://arxiv.org/abs/2310.17422
Publikováno v:
J. Magn. Magn. Mater. 400, 149 (2016)
Magnetic solitons can constitute a means for manipulating qubits from a distance. This would overcome the necessity of directly applying selective magnetic fields, which is unfeasible in the case of a matrix of qubits embedded in a solid-state quantu
Externí odkaz:
http://arxiv.org/abs/2104.02986
Autor:
Vaia, Ruggero
Publikováno v:
Phys. Rev. E 102, 023005 (2020)
A pulse traveling on a uniform nondissipative chain of $N$ masses connected by springs is soon destructured by dispersion. Here it is shown that a proper modulation of the masses and the elastic constants makes it possible to obtain a periodic dynami
Externí odkaz:
http://arxiv.org/abs/2008.01685
Autor:
Vaia, Ruggero, Spadini, Lidia
Publikováno v:
Linear Algebra Appl. 585, 164 (2020)
A real persymmetric Jacobi matrix of order $n$ whose eigenvalues are $2k^2$ $(k=0, ..., n-1)$ is presented, with entries given as explicit functions of $n$. Besides the possible use for testing forward and inverse numerical algorithms, such a matrix
Externí odkaz:
http://arxiv.org/abs/1910.01379
Autor:
Capriotti, Luca, Vaia, Ruggero
Publikováno v:
Journal of Derivatives 28, 8-25 (2020)
We show how effective-potential path-integrals methods, stemming on a simple and nice idea originally due to Feynman and successfully employed in Physics for a variety of quantum thermodynamics applications, can be used to develop an accurate and eas
Externí odkaz:
http://arxiv.org/abs/1902.03610
Autor:
Vaia, Ruggero
Publikováno v:
Phys. Rev. E 97, 043001 (2018)
Almost-dispersionless pulse transfer between the extremal masses of a uniform harmonic spring-mass chain of arbitrary length can be induced by suitably modifying two masses and their spring's elastic constant at both extrema of the chain. It is shown
Externí odkaz:
http://arxiv.org/abs/1804.07489
Publikováno v:
Phys. Rev. B 96, 054449 (2017)
We consider two distant spin-$\frac{1}{2}$ particles (or qubits) and a number of interacting objects, all with the same value $S\gg1$ of their respective spin, distributed on a one-dimensional lattice (or large-$S$ spin chain). The quantum states of
Externí odkaz:
http://arxiv.org/abs/1706.04501
Autor:
Vaia, Ruggero
Bogoliubov transformations have been successfully applied in several Condensed Matter contexts, e.g., in the theory of superconductors, superfluids, and antiferromagnets. These applications are based on bulk models where translation symmetry can be a
Externí odkaz:
http://arxiv.org/abs/1611.07835
We propose a method for acting on the spin state of a spin-1/2 localized particle, or `qubit', by means of a magnetic signal effectively generated by the nearby transit of a magnetic soliton, there conveyed through a transmission line. We first intro
Externí odkaz:
http://arxiv.org/abs/1505.02954
Autor:
Vaia, Ruggero, Spadini, Lidia
Publikováno v:
In Linear Algebra and Its Applications 15 January 2020 585:164-177
