6.6k citations
- Aalto UniversityFI160 papers
- University of HelsinkiFI89 papers
- Centre National de la Recherche ScientifiqueFR69 papers
- National Institute for AstrophysicsIT65 papers
- Helsinki Institute of PhysicsFI63 papers
- University of ManchesterGB63 papers
- University of MilanIT63 papers
- University of California, Santa BarbaraUS61 papers
- University of TriesteIT58 papers
- Universidad de CantabriaES57 papers
- University of OsloNO57 papers
- University of Rome Tor VergataIT57 papers
18 papers · 1 filter
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…
Mini array of quantum Hall devices based on epitaxial graphene
S. Novikov, N. Lebedeva, J. Hamalainen +4
Series connection of four quantum Hall effect (QHE) devices based on epitaxial graphene films was studied for realization of a quantum resistance standard with an up-scaled value.…
Analysis of thermal radiation in ion traps for optical frequency standards
Miroslav Doležal, Petr Balling, Peter B R Nisbet-Jones +16
In many of the high-precision optical frequency standards with trapped atoms or ions that are under development to date, the AC Stark shift induced by thermal radiation leads to a…
Accurate Coulomb Blockade Thermometry up to 60 Kelvin
M. Meschke, A. Kemppinen, J. P. Pekola
We demonstrate experimentally a precise realization of Coulomb Blockade Thermometry (CBT) working at temperatures up to 60 K. Advances in nano fabrication methods using electron be…
Nanoelectronic thermometers optimised for sub-10 millikelvin operation
J. R. Prance, D. I. Bradley, R. E. George +8
We report the cooling of electrons in nanoelectronic Coulomb blockade thermometers below 4 mK. Above 7 mK the devices are in good thermal contact with the environment, well isolate…
Spectral characterization of a frequency comb based on cascaded quadratic nonlinearities inside an optical parametric oscillator
Ville Ulvila, C. R. Phillips, Lauri Halonen +1
We present an experimental study of optical frequency comb generation based on cascaded quadratic nonlinearities inside a continuous-wave-pumped optical parametric oscillator. We d…