4 papers
Thermal relaxation in titanium nanowires: signatures of inelastic electron-boundary scattering in heat transfer
Teemu Elo, Pasi Lähteenmäki, Dmitri Golubev +3
We have employed noise thermometry for investigations of thermal relaxation between the electrons and the substrate in nanowires patterned from 40-nm-thick titanium film on top of…
Cross correlations in disordered, four-terminal graphene-ribbon conductor: Hanbury-Brown and Twiss exchange as a sign of non-universality of noise
Zhenbing Tan, Teemu Nieminen, Antti Puska +7
We have investigated current-current correlations in a cross-shaped conductor made of graphene ribbons. We measured auto and cross correlations and compared them with the theoretic…
Coherence and multimode correlations from vacuum fluctuations in a microwave superconducting cavity
Pasi Lähteenmäki, Gheorghe Sorin Paraoanu, Juha Hassel +1
The existence of vacuum fluctuations is one of the most important predictions of modern quantum field theory. In the vacuum state, fluctuations occurring at different frequencies a…
Wideband superconducting nanotube electrometer
Pasi Häkkinen, Aurélien Fay, Dmitry Golubev +2
We have investigated the microwave response of nanotube Josephson junctions at 600-900 MHz at microwave powers corresponding to currents from 0 to in the ju…