Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Juha-Matti Pirkkalainen"'
Background Incidence of glioblastoma (GBM) increases with age and the prognosis is worse among the elderly. This was shown in a Finnish population-based register study evaluating GBM patients diagnosed between 2000 and 2013. The median overall surviv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4740a4a0ee94768fde4afcf7845679e1
http://hdl.handle.net/10138/342897
http://hdl.handle.net/10138/342897
Autor:
Mika Sillanpää, Juha-Matti Pirkkalainen, A.A. Clerk, Caspar Ockeloen-Korppi, Matthew J. Woolley, Erno Damskägg
Publikováno v:
PHYSICAL REVIEW LETTERS. 117(14):1-6
The standard quantum limit constrains the precision of an oscillator position measurement. It arises from a balance between the imprecision and the quantum back-action of the measurement. However, a measurement of only a single quadrature of the osci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11b0d3aeb3739577a8c58c1d7c9cb3d7
http://juuli.fi/Record/0274627016
http://juuli.fi/Record/0274627016
Publikováno v:
PHYSICAL REVIEW LETTERS. 115(24):1-15
A pair of conjugate observables, such as the quadrature amplitudes of harmonic motion, have fundamental fluctuations which are bound by the Heisenberg uncertainty relation. However, in a squeezed quantum state, fluctuations of a quantity can be reduc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3beedaefa98138fe463b108884b4013d
http://juuli.fi/Record/0337377915
http://juuli.fi/Record/0337377915
Autor:
Tero T. Heikkilä, Jani Tuorila, Juha-Matti Pirkkalainen, Mika Sillanpää, Sung Un Cho, Francesco Massel, Pertti Hakonen
Publikováno v:
Nature Communications
Coupling electromagnetic waves in a cavity and mechanical vibrations via the radiation pressure of photons is a promising platform for investigations of quantum–mechanical properties of motion. A drawback is that the effect of one photon tends to b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a5faeb8c6f5112d3e19945c2da88bf2
http://juuli.fi/Record/0336836815
http://juuli.fi/Record/0336836815
Autor:
Caspar Ockeloen-Korppi, Erno Damskägg, Mika Sillanpää, Francesco Massel, Juha-Matti Pirkkalainen, Tero T. Heikkilä
Publikováno v:
Physical Review Letters
A process which strongly amplifies both quadrature amplitudes of an oscillatory signal necessarily adds noise. Alternatively, if the information in one quadrature is lost in phase-sensitive amplification, it is possible to completely reconstruct the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81b4cf10682adb21361626c51ec06581
https://aaltodoc.aalto.fi/handle/123456789/28334
https://aaltodoc.aalto.fi/handle/123456789/28334
Autor:
Mika Sillanpää, Juha-Matti Pirkkalainen, Jian Li, Gheorghe Sorin Paraoanu, Pertti Hakonen, Sung Un Cho
Publikováno v:
Nature
Hybrid quantum systems with inherently distinct degrees of freedom play a key role in many physical phenomena. Famous examples include cavity quantum electrodynamics, trapped ions, or electrons and phonons in the solid state. Here, a strong coupling
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c822f2a34ebaedba9fb5f7ad22389678
http://juuli.fi/Record/0336715713
http://juuli.fi/Record/0336715713
Autor:
Caspar Ockeloen-Korppi, Juha-Matti Pirkkalainen, Mika Sillanpää, Tero T. Heikkilä, Erno Damskägg, Francesco Massel
Publikováno v:
Physical Review X, Vol 6, Iss 4, p 041024 (2016)
High-gain amplifiers of electromagnetic signals operating near the quantum limit are crucial for quantum information systems and ultrasensitive quantum measurements. However, the existing techniques have a limited gain-bandwidth product and only oper
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::981b12d594e3bb48fe00c07f27f00d4e
https://doaj.org/article/70e50365fe3848deab8f9edbf2cac533
https://doaj.org/article/70e50365fe3848deab8f9edbf2cac533
We study a multimode optomechanical system where two mechanical oscillators are coupled to an electromagnetic cavity. Previously it has been shown that if the mechanical resonances have nearly equal frequencies, one can make the oscillators to intera
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69c698950b75f10b08840069e21ece6f
http://arxiv.org/abs/1609.08809
http://arxiv.org/abs/1609.08809
Autor:
Juha-Matti Pirkkalainen, Mika Sillanpää, Heini Saloniemi, Tero T. Heikkilä, Sung Un Cho, Francesco Massel, Pertti Hakonen
Publikováno v:
Nature
ISSCC
Massel, F, Heikkilä, T, Pirkkalainen, J-M, Cho, S, Saloniemi, H, Hakonen, P & Sillanpää, M 2011, ' Microwave amplification with nanomechanical resonators ', Nature, vol. 480, pp. 351-354 . https://doi.org/10.1038/nature10628
ISSCC
Massel, F, Heikkilä, T, Pirkkalainen, J-M, Cho, S, Saloniemi, H, Hakonen, P & Sillanpää, M 2011, ' Microwave amplification with nanomechanical resonators ', Nature, vol. 480, pp. 351-354 . https://doi.org/10.1038/nature10628
Sensitive measurement of electrical signals is at the heart of modern science and technology. According to quantum mechanics, any detector or amplifier is required to add a certain amount of noise to the signal, equaling at best the energy of quantum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f58204ada93c31c13de3188b191cea4
http://juuli.fi/Record/0337673011
http://juuli.fi/Record/0337673011
Autor:
Mikko Möttönen, Juha-Matti Pirkkalainen, David N. Jamieson, Andrew S. Dzurak, Changyi Yang, Kok Wai Chan, A. D. C. Alves, Jessica van Donkelaar, Kuan Yen Tan, Andrea Morello, R. G. Clark
Publikováno v:
Nano Letters. 10:11-15
We have developed nanoscale double-gated field-effect-transistors for the study of electron states and transport properties of single deliberately implanted phosphorus donors. The devices provide a high-level of control of key parameters required for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::76f5bce468aa155eaa111d857ca6c2a7
https://doi.org/10.1021/nl901635j
https://doi.org/10.1021/nl901635j