Arute, F. et al. Quantum supremacy using a programmable superconducting processor. Nature 574, 505–510 (2019).ADS Article Google Scholar ...
Two-band modelWe consider the two-dimensional two-band Hamiltonian$${H}_{0}=\frac{{\hslash }^{2}{k}^{2}}{2m}+\mathop{\sum }\limits_{i=1}^{2}{d}_{i}({{{{{{{\bf{k}}}}}}}}){\sigma }_{i},$$ (1) ...
Spin HamiltoniansWe adopt a generic Hamiltonian for twisted \({Cr}{I}_{3}\) bilayers including exchange, DM, and Kitaev interactions,$${{{{{\mathscr{H}}}}}}= -J\mathop{\sum}\limits_{l,i,j}{{{{{{\bf{S}}}}}}}_{{li}}.{{{{{{\bf{S}}}}}}}_{{lj}}{{{{{\mathscr{-}}}}}}{{{{{\mathscr{A}}}}}}\mathop{\sum}\limits_{l,i}{\left({{{{{{\bf{S}}}}}}}_{{li}}.\hat{{{{{{\bf{z}}}}}}}\right)}^{2}+D\mathop{\sum}\limits_{l,m,n}{\hat{{{{{{\bf{D}}}}}}}}_{{mn}}.{{{{{{\bf{S}}}}}}}_{{lm}}\times {{{{{{\bf{S}}}}}}}_{{ln}} \\ +d\mathop{\sum}\limits_{l,m,n}{\hat{{{{{{\bf{d}}}}}}}}_{{ij}}.{{{{{{\bf{S}}}}}}}_{{li}}\times {{{{{{\bf{S}}}}}}}_{{lj}}-\mathop{\sum}\limits_{i,j}{J}_{\perp }({{{{{{\bf{r}}}}}}}_{{ij}}){{{{{{\bf{S}}}}}}}_{2i}.{{{{{{\bf{S}}}}}}}_{1j}-\mathop{\sum}\limits_{l,i}{{{{{\bf{B}}}}}}.{{{{{{\bf{S}}}}}}}_{{li}} \\ -\mathop{\sum}\limits_{l}\mathop{\sum}\limits_{\left\langle i,j\right\rangle \in \lambda \mu \left(\nu \right)}\left[K{S}_{i}^{\nu }{S}_{j}^{\nu }+\varGamma \left({S}_{i}^{\lambda }{S}_{j}^{\mu }+{S}_{i}^{\mu }{S}_{j}^{\lambda }\right)\right]$$ ...
Spectral ghost imagingGhost imaging is an experimental technique, which uses statistical fluctuations of an incident beam to extract information about an object using a beam replica that has not physically interacted with the object34. It can be used in the spatial35,36,37, temporal18, and spectral21,22...
Theoretical modelOur starting point for the investigation of topological superconductivity on the surface of FeSe0.45Te0.55 is the experimental observation that superconductivity in the iron-based superconductors emerges form the pairing of electrons in the α-, β-, and γ-bands33. ARPES experiments on the parent compound FeSe have...
Characterisation of the input-output inversions of bistochastic channelsThe foundation of our framework is the characterisation of the bidirectional quantum devices. The logic of our argument is the following: first, we observe that the input-output inversion must be linear in its argument (Supplementary Note 5). Hence,...
¿Alguna duda? Consúltanos.
Whatsapp
