Search Results - "Hakonen, P J"

Cooper pair splitting by means of graphene quantum dots by Tan, Z B, Cox, D, Nieminen, T, Lähteenmäki, P, Golubev, D, Lesovik, G B, Hakonen, P J

“…A split Cooper pair is a natural source for entangled electrons which is a basic ingredient for quantum information in the solid state. We report an experiment…”
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Graphene optomechanics realized at microwave frequencies by Song, X, Oksanen, M, Li, J, Hakonen, P J, Sillanpää, M A

“…Cavity optomechanics has served as a platform for studying the interaction between light and micromechanical motion via radiation pressure. Here we observe…”
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Hybrid circuit cavity quantum electrodynamics with a micromechanical resonator by Pirkkalainen, J.-M., Cho, S. U., Li, Jian, Paraoanu, G. S., Hakonen, P. J., Sillanpää, M. A.

“…The properties of a quantum bit coupled to both a microwave cavity and a phonon mode in a micromechanical resonator suggest that such systems may allow for…”
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Thermoelectric current in a graphene Cooper pair splitter by Tan, Z. B., Laitinen, A., Kirsanov, N. S., Galda, A., Vinokur, V. M., Haque, M., Savin, A., Golubev, D. S., Lesovik, G. B., Hakonen, P. J.

“…Generation of electric voltage in a conductor by applying a temperature gradient is a fundamental phenomenon called the Seebeck effect. This effect and its…”
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Microwave amplification with nanomechanical resonators by Massel, F., Heikkilä, T. T., Pirkkalainen, J.-M., Cho, S. U., Saloniemi, H., Hakonen, P. J., Sillanpää, M. A.

“…Use of nanomechanical resonators has the potential to offer microwave amplification with the minimum possible added noise, namely that due to quantum…”
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Topologically-imposed vacancies and mobile solid 3He on carbon nanotube by Todoshchenko, I., Kamada, M., Kaikkonen, J.-P., Liao, Y., Savin, A., Will, M., Sergeicheva, E., Abhilash, T. S., Kauppinen, E., Hakonen, P. J.

“…Low dimensional fermionic quantum systems are exceptionally interesting because they reveal distinctive physical phenomena, including among others,…”
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Cryogenic Differential Amplifier for NMR Applications by Zavjalov, V. V., Savin, A. M., Hakonen, P. J.

“…We have designed and characterized a cryogenic amplifier for use in 3 He NMR spectrometry. The amplifier, with a power consumption of ∼ 2.5  mW, works at…”
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Hanbury-Brown and Twiss exchange and non-equilibrium-induced correlations in disordered, four-terminal graphene-ribbon conductor by Tan, Z. B., Elo, T., Puska, A., Sarkar, J., Lähteenmäki, P., Duerr, F., Gould, C., Molenkamp, L. W., Nagaev, K. E., Hakonen, P. J.

“…We have investigated current-current correlations in a cross-shaped conductor made of graphene. The mean free path of charge carriers is on the order of the…”
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Direct observation of Josephson capacitance by Sillanpää, M A, Lehtinen, T, Paila, A, Makhlin, Yu, Roschier, L, Hakonen, P J

“…The effective capacitance has been measured in the split Cooper-pair box (CPB) over its phase-gate bias plane. Our low-frequency reactive measurement scheme…”
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Cavity optomechanics mediated by a quantum two-level system by Pirkkalainen, J.-M., Cho, S.U., Massel, F., Tuorila, J., Heikkilä, T.T., Hakonen, P.J., Sillanpää, M.A.

“…Coupling electromagnetic waves in a cavity and mechanical vibrations via the radiation pressure of photons is a promising platform for investigations of…”
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Evanescent Wave Transport and Shot Noise in Graphene: Ballistic Regime and Effect of Disorder by Danneau, R., Wu, F., Craciun, M. F., Russo, S., Tomi, M. Y., Salmilehto, J., Morpurgo, A. F., Hakonen, P. J.

“…We have investigated electrical transport and shot noise in graphene field effect devices. In large width over length ratio W / L graphene strips, we have…”
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Spectroscopy of Oscillation Modes in Homogeneously Precessing Domain of Superfluid 3He-B by Zavjalov, V. V., Savin, A., Sergeicheva, E., Hakonen, P. J.

“…We study the homogeneously precessing domain (HPD) in superfluid 3 He-B in a regular continuous-wave nuclear magnetic resonance (CW NMR) experiment. Using…”
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Spectroscopy of Oscillation Modes in Homogeneously Precessing Domain of Superfluid 3 He-B by Zavjalov, V V, Savin, A, Sergeicheva, E, Hakonen, P J

“…We study the homogeneously precessing domain (HPD) in superfluid He-B in a regular continuous-wave nuclear magnetic resonance (CW NMR) experiment. Using…”
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Shot noise measurements in graphene by Danneau, R., Wu, F., Craciun, M.F., Russo, S., Tomi, M.Y., Salmilehto, J., Morpurgo, A.F., Hakonen, P.J.

“…We have investigated shot noise at microwave frequencies in wide-aspect-ratio graphene sheets in the temperature range of 4.2–30 K. We find that for our short…”
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Observation of shot-noise-induced asymmetry in the coulomb blockaded josephson junction by LINDELL, R. K, DELAHAYE, J, SILLANPÄÄ, M. A, HEIKKILÄ, T. T, SONIN, E. B, HAKONEN, P. J

“…We have investigated the influence of shot noise on the IV curves of a single mesoscopic Josephson junction. We observe a linear enhancement of zero-bias…”
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Shot noise in ballistic graphene by Danneau, R, Wu, F, Craciun, M F, Russo, S, Tomi, M Y, Salmilehto, J, Morpurgo, A F, Hakonen, P J

“…We have investigated shot noise in graphene field effect devices in the temperature range of 4.2-30 K at low frequency (f=600-850 MHz). We find that for our…”
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Broadband lumped-element Josephson parametric amplifier with single-step lithography by Elo, T., Abhilash, T. S., Perelshtein, M. R., Lilja, I., Korostylev, E. V., Hakonen, P. J.

“…We present a lumped-element Josephson parametric amplifier (JPA) fabricated using a straightforward e-beam lithography process. Our strongly coupled…”
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Motional averaging in a superconducting qubit by Li, Jian, Silveri, M.P., Kumar, K.S., Pirkkalainen, J.-M., Vepsäläinen, A., Chien, W.C., Tuorila, J., Sillanpää, M.A., Hakonen, P.J., Thuneberg, E.V., Paraoanu, G.S.

“…Superconducting circuits with Josephson junctions are promising candidates for developing future quantum technologies. Of particular interest is to use these…”
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Local and non-local shot noise in multiwalled carbon nanotubes by Tsuneta, T, Virtanen, P, Wu, F, Wang, T, Heikkilä, T. T, Hakonen, P. J

“…We have investigated shot noise in multiterminal, disordered multiwalled carbon nanotubes (MWNTs) at 4.2 K over the frequency f = 600–850 MHz. Quantitative…”
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“Superconductor-Insulator Transition” in a Single Josephson Junction by Penttilä, J. S., Parts, Ü., Hakonen, P. J., Paalanen, M. A., Sonin, E. B.

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