Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Tworzydło, Jakub"'
We improve the test to show the impossibility of a quantum theory based on real numbers by a larger ratio of complex-to-real bound on a Bell-type parameter. In contrast to previous theoretical and experimental proposals the test requires three settin
Externí odkaz:
http://arxiv.org/abs/2405.03013
We present a precise certification test of the dimension of a qubit system on the public IBM quantum computer, using the determinant dimension witness and with a minimal number of independent parameters. We achieve it by mapping the Bloch sphere $\pi
Externí odkaz:
http://arxiv.org/abs/2404.06792
Magic-angle twisted bilayer graphene is a tunable material with remarkably flat energy bands near the Fermi level, leading to fascinating transport properties and correlated states at low temperatures. However, grown pristine samples of this material
Externí odkaz:
http://arxiv.org/abs/2403.19313
Publikováno v:
EPJ Quantum Technology 11, 62 (2024)
We investigate the dimensionality of bipartite quantum systems by construction of a device-independent null witness test. This test assesses whether a given bipartite state conforms with the expected quantum dimension, Schmidt number, and distinguish
Externí odkaz:
http://arxiv.org/abs/2312.13996
Publikováno v:
EPJ Quantum Technol. 11, 21 (2024)
We demonstrate an implementation of the precise test of dimension on the qubit, using the public IBM quantum computer, using the determinant dimension witness. The accuracy is below $10^{-3}$ comparing to maximal possible value of the witness in high
Externí odkaz:
http://arxiv.org/abs/2301.03296
Publikováno v:
Phys. Rev. Research 4, 043145 (2022)
Magic-angle twisted bilayer graphene exhibits quasi-flat low-energy bands with Van Hove singularities close to the Fermi level. These singularities play an important role in the exotic phenomena observed in this material, such as superconductivity an
Externí odkaz:
http://arxiv.org/abs/2208.08366
Publikováno v:
Front. Phys. 12, 1360080 (2024)
We analyze the results of the test of $\pi/2$ qubit rotations on the public quantum computer provided by IBM. We measure a single qubit rotated by $\pi/2$ about a random axis, and we accumulate vast statistics of the results. The test performed on di
Externí odkaz:
http://arxiv.org/abs/2112.07567
Fascination in topological materials originates from their remarkable response properties and exotic quasiparticles which can be utilized in quantum technologies. In particular, large-scale efforts are currently focused on realizing topological super
Externí odkaz:
http://arxiv.org/abs/2112.06777
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