Zobrazeno 1 - 10
of 234
pro vyhledávání: '"P Krehlik"'
Autor:
Gosar, Katja, Jevšenak, Vesna Pirc, Mežnaršič, Tadej, Beguš, Samo, Krehlik, Tomasz, Ponikvar, Dušan, Zupanič, Erik, Jeglič, Peter
Publikováno v:
Phys. Rev. A 108, 032618 (2023)
We observe dark-state polariton collapses and revivals in a quantum memory based on electromagnetically induced transparency on a cloud of cold cesium atoms in a magnetic field. Using $\sigma^+$ polarized signal and control beams in the direction of
Externí odkaz:
http://arxiv.org/abs/2305.03692
Autor:
Krehlik, Tomasz, Stabrawa, Artur, Gartman, Rafał, Kaczmarek, Krzysztof T., Löw, Robert, Wojciechowski, Adam
Preparation of an atomic ensemble in a particular Zeeman state is a critical step of many protocols for implementing quantum sensors and quantum memories. These devices can also benefit from optical fibre integration. In this work we describe experim
Externí odkaz:
http://arxiv.org/abs/2208.00736
We describe a fiber-optic solution for simultaneous distribution of all signals generated at todays most advanced time and frequency laboratories, i.e. an ultrastable optical reference frequency derived from an optical atomic clock, a radio frequency
Externí odkaz:
http://arxiv.org/abs/1706.01696
Autor:
Krehlik, P., Buczek, Ł., Kołodziej, J., Lipiński, M., Śliwczyński, Ł., Nawrocki, J., Nogaś, P., Marecki, A., Pazderski, E., Ablewski, P., Bober, M., Ciuryło, R., Cygan, A., Lisak, D., Masłowski, P., Morzyński, P., Zawada, M., Campbell, R. M., Pieczerak, J., Binczewski, A., Turza, K.
Publikováno v:
A&A 603, A48 (2017)
The quality of Very Long Baseline Interferometry (VLBI) radio observations predominantly relies on precise and ultra-stable time and frequency (T&F) standards, usually hydrogen masers (HM), maintained locally at each VLBI station. Here, we present an
Externí odkaz:
http://arxiv.org/abs/1703.09479
Akademický článek
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Autor:
Krehlik, Tomas, Barunik, Jozef
Oil markets profoundly influence world economies through determination of prices of energy and transports. Using novel methodology devised in frequency domain, we study the information transmission mechanisms in oil-based commodity markets. Taking cr
Externí odkaz:
http://arxiv.org/abs/1603.07020
Autor:
Morzynski, Piotr, Bober, Marcin, Bartoszek-Bober, Dobroslawa, Nawrocki, Jerzy, Krehlik, Przemyslaw, Sliwczynski, Lukasz, Lipinski, Marcin, Maslowski, Piotr, Cygan, Agata, Dunst, Piotr, Garus, Michal, Lisak, Daniel, Zachorowski, Jerzy, Gawlik, Wojciech, Radzewicz, Czeslaw, Ciurylo, Roman, Zawada, Michal
Publikováno v:
Sci. Rep., 5, 17495 (2015)
We report a stability below $7\times 10{}^{-17}$ of two independent optical lattice clocks operating with bosonic ${}^{88}$Sr isotope. The value (429228066418008.3(1.9)${}_{syst}$(0.9)${}_{stat}$~Hz) of the absolute frequency of the ${}^{1}S_{0}$ - $
Externí odkaz:
http://arxiv.org/abs/1512.02156
Autor:
Barunik, Jozef, Krehlik, Tomas
We propose a new framework for measuring connectedness among financial variables that arises due to heterogeneous frequency responses to shocks. To estimate connectedness in short-, medium-, and long-term financial cycles, we introduce a framework ba
Externí odkaz:
http://arxiv.org/abs/1507.01729
Publikováno v:
Metrology and Measurement Systems, Vol 27, Iss 3, Pp 441-450 (2020)
This paper focuses on automatic locking of tracking filters used in optical frequency transfer systems. General concept of such a system is briefly described and the problems with its automatic startup, originating in the use of the analog phase lock
Externí odkaz:
https://doaj.org/article/ff11e3d8fb9d41e49305d2770b1a08db
This paper proposes an enhanced approach to modeling and forecasting volatility using high frequency data. Using a forecasting model based on Realized GARCH with multiple time-frequency decomposed realized volatility measures, we study the influence
Externí odkaz:
http://arxiv.org/abs/1204.1452