Zobrazeno 1 - 10
of 173
pro vyhledávání: '"Sillanpää, A."'
Autor:
Banniard, Louise, Wang, Cheng, Stirpe, Davide, Børkje, Kjetil, Massel, Francesco, de Lépinay, Laure Mercier, Sillanpää, Mika A.
We report a study of a cavity optomechanical system driven by narrow-band electromagnetic fields, which are applied either in the form of uncorrelated noise, or as a more structured spectrum. The bandwidth of the driving spectra is smaller than the m
Externí odkaz:
http://arxiv.org/abs/2406.00546
Spinel oxides are recognized as promising Fenton-like catalysts for the degradation of antibiotics. However, the catalytic performance is restrained by the poor electron transfer rate (ETR). Herein, hollow NiCo2O4@C nanocages are rationally designed
Externí odkaz:
http://arxiv.org/abs/2403.10835
Autor:
Rej, Ewa, Cutting, Richa, Datta, Debopam, Tiencken, Nils, Govenius, Joonas, Vesterinen, Visa, Liu, Yulong, Sillanpää, Mika A.
Feedback-based control of nano- and micromechanical resonators can enable the study of macroscopic quantum phenomena and also sensitive force measurements. Here, we demonstrate the feedback cooling of a low-loss and high-stress macroscopic SiN membra
Externí odkaz:
http://arxiv.org/abs/2403.02319
Cubic silicon-carbide crystals, known for their high thermal conductivity and in-plane stress, hold significant promise for the development of high-quality ($Q$) mechanical oscillators. Enabling coherent electrical manipulation of long-lived mechanic
Externí odkaz:
http://arxiv.org/abs/2401.01020
This paper provides a solution for the activity detection and channel estimation problem in grant-free access with correlated device activity patterns. In particular, we consider a machine-type communications (MTC) network operating in event-triggere
Externí odkaz:
http://arxiv.org/abs/2310.14578
This paper addresses the joint user identification and channel estimation (JUICE) problem in machine-type communications under the practical spatially correlated channels model with unknown covariance matrices. Furthermore, we consider an MTC network
Externí odkaz:
http://arxiv.org/abs/2310.10204
Autor:
Valtonen, Mauri J., Zola, Staszek, Gopakumar, Achamveedu, Lähteenmäki, Anne, Tornikoski, Merja, Dey, Lankeswar, Gupta, Alok C., Pursimo, Tapio, Knudstrup, Emil, Gomez, Jose L., Hudec, Rene, Jelínek, Martin, Štrobl, Jan, Berdyugin, Andrei V., Ciprini, Stefano, Reichart, Daniel E., Kouprianov, Vladimir V., Matsumoto, Katsura, Drozdz, Marek, Mugrauer, Markus, Sadun, Alberto, Zejmo, Michal, Sillanpää, Aimo, Lehto, Harry J., Nilsson, Kari, Imazawa, Ryo, Uemura, Makoto, Davidson Jr, James W.
The highly variable blazar OJ~287 is commonly discussed as an example of a binary black hole system. The 130 year long optical light curve is well explained by a model where the central body is a massive black hole of 18.35$\times$10$^9$ solar mass t
Externí odkaz:
http://arxiv.org/abs/2308.03017
Autor:
Valtonen, Mauri J., Dey, Lankeswar, Gopakumar, Achamveedu, Zola, Staszek, Lähteenmäki, Anne, Tornikoski, Merja, Gupta, Alok C., Pursimo, Tapio, Knudstrup, Emil, Gomez, Jose L., Hudec, Rene, Jelínek, Martin, Štrobl, Jan, Berdyugin, Andrei V., Ciprini, Stefano, Reichart, Daniel E., Kouprianov, Vladimir V., Matsumoto, Katsura, Drozdz, Marek, Mugrauer, Markus, Sadun, Alberto, Zejmo, Michal, Sillanpää, Aimo, Lehto, Harry J., Nilsson, Kari, Imazawa, Ryo, Uemura, Makoto
We present a summary of the results of the OJ 287 observational campaign, which was carried out during the 2021/2022 observational season. This season is special in the binary model because the major axis of the precessing binary happens to lie almos
Externí odkaz:
http://arxiv.org/abs/2308.01878
Autor:
Britzen, Silke, Zajaček, Michal, Gopal-Krishna, Fendt, Christian, Kun, Emma, Jaron, Frédéric, Sillanpää, Aimo, Eckart, Andreas
Publikováno v:
The Astrophysical Journal (2023), Volume 951, Issue 2, id.106, 38 pp
The combined study of the flaring of Active Galactic Nuclei (AGN) at radio wavelengths and pc-scale jet kinematics with Very Long Baseline Interferometry (VLBI) has led to the view that i) the observed flares are associated with ejections of synchrot
Externí odkaz:
http://arxiv.org/abs/2307.05838
Publikováno v:
Appl. Phys. Lett. 123, 134004 (2023)
In this work, we present a device consisting of two coupled transmon qubits, each of which are coupled to an independent high-overtone bulk acoustic wave resonator (HBAR). Both HBAR resonators support a plethora of acoustic modes, which can couple to
Externí odkaz:
http://arxiv.org/abs/2307.05544