Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Hekking, Frank W. J."'
Publikováno v:
Phys. Rev. B 101, 205411 (2020)
We perform a theoretical study of the near-field heat transfer between two atomically thin metallic layers, isolated galvanically but coupled by the Coulomb interaction, within the framework of fluctuational electrodynamics in the Coulomb limit. We c
Externí odkaz:
http://arxiv.org/abs/2002.00627
Autor:
Svetogorov, Aleksandr E., Taguchi, Masahiko, Tokura, Yasuhiro, Basko, Denis M., Hekking, Frank W. J.
Publikováno v:
Phys. Rev. B 97, 104514 (2018)
We study coherent quantum phase-slips which lift the ground state degeneracy in a Josephson junction ring, pierced by a magnetic flux of the magnitude equal to half of a flux quantum. The quantum phase-slip amplitude is sensitive to the normal mode s
Externí odkaz:
http://arxiv.org/abs/1711.09755
Publikováno v:
Phys. Rev. B 92, 094514 (2015)
We consider a hybrid single-electron transistor (SET) constituted by a gate-controlled normal-metal island (N) connected to two voltage-biased superconducting leads (S) by means of two tunnel junctions (S-I-N-I-S), operated as a turnstile. We show th
Externí odkaz:
http://arxiv.org/abs/1507.03900
Autor:
Weißl, Thomas, Küng, Bruno, Dumur, Étienne, Feofanov, Alexey K., Matei, Iulian, Naud, Cécile, Buisson, Olivier, Hekking, Frank W. J., Guichard, Wiebke
Publikováno v:
Phys. Rev. B 92, 104508 (2015)
We present an experimental and theoretical analysis of the self- and cross-Kerr effect of extended plasma resonances in Josephson junction chains. We calculate the Kerr coefficients by deriving and diagonalizing the Hamiltonian of a linear circuit mo
Externí odkaz:
http://arxiv.org/abs/1505.05845
Publikováno v:
Phys. Rev. B 92, 134503 (2015)
A local interaction between photons can be engineered by coupling a nonlinear system to a transmission line. The required high impedance transmission line can be conveniently formed from a chain of Josephson junctions. The nonlinearity is generated b
Externí odkaz:
http://arxiv.org/abs/1505.05356
Publikováno v:
Phys. Rev. B 92, 024507 (2015)
We propose a way to control the Josephson energy of a single Josephson junction embedded in one- dimensional superconducting metamaterial: an inhomogeneous superconducting loop, made out of a superconducting nanowire or a chain of Josephson junctions
Externí odkaz:
http://arxiv.org/abs/1505.00385
Publikováno v:
Phys. Rev. B 91, 184512 (2015)
We consider the dynamics of a quantum phase-slip junction (QPSJ) -- a dual Josephson junction -- connected to a microwave source with frequency $\omega_\textrm{mw}$. With respect to an ordinary Josephson junction, a QPSJ can sustain dual Shapiro step
Externí odkaz:
http://arxiv.org/abs/1502.04878
Autor:
Kawabata, Shiro, Vasenko, Andrey S., Ozaeta, Asier, Bergeret, F. Sebastian, Hekking, Frank W. J.
Publikováno v:
Journal of Magnetism and Magnetic Materials 383 (2015) 157
We investigate electron cooling based on a clean normal-metal/spin-filter/superconductor junction. Due to the suppression of the Andreev reflection by the spin-filter effect, the cooling power of the system is found to be extremely higher than that f
Externí odkaz:
http://arxiv.org/abs/1407.1977
Publikováno v:
Journal of Low Temperature Physics 175 (2014) 799
Thermo-electric transport at the nano-scale is a rapidly developing topic, in particular in superconductor-based hybrid devices. In this review paper, we first discuss the fundamental principles of electronic cooling in mesoscopic superconducting hyb
Externí odkaz:
http://arxiv.org/abs/1404.7605
Autor:
Camarasa-Gomez, Maria, Di Marco, Angelo, Hekking, Frank W. J., Winkelmann, Clemens, Courtois, Hervé, Giazotto, Francesco
Publikováno v:
Applied Physics Letters 104 (2014) 192601
The design and operation of an electronic cooler based on a combination of superconducting tunnel junctions is described. The cascade extraction of hot-quasiparticles, which stems from the energy gaps of two different superconductors, allows for a no
Externí odkaz:
http://arxiv.org/abs/1404.4701