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  • Open Access
    Authors: 
    Patrycja Łydżba; Janez Bonča;
    Publisher: American Physical Society (APS)

    We study a unitary time evolution of a symmetry-broken state in a form of a charge density wave in a finite system of interacting hard-core bosons, which can be mapped onto the XXZ Heisenberg chain. Moreover, we introduce a spatially-homogenous and time-dependent vector...

  • Open Access English
    Authors: 
    He, X. H.; Shen, C. P.; Ayad, R.; Rostomyan, Armine; Sakai, Y.; Sandilya, S.; Santelj, L.; Sanuki, T.; Sato, Y.; Savinov, V.; +156 more
    Country: Germany

    The $e^+e^- \to \pi^+ \pi^- \pi^0 \chi_{bJ}$ ($J=0,~1,~2$) processes are studied using a 118~fb$^{-1}$ data sample collected at a center-of-mass energy of 10.867 GeV, in the $\Upsilon(10860)$ energy range, with the Belle detector. The $\pi^+ \pi^- \pi^0 \chi_{b1}$, $\pi...

  • Open Access English
    Authors: 
    Hegenbarth, Friedrich; Repovš, Dušan;

    For a closed topological $n$--manifold $K$ and a map $p:K\to B$ inducing an isomorphism $\pi_1(K)\to\pi_1(B)$, there is a canonicaly defined morphism $b:H_{n+1}(B,K,\mathbb{L})\to \mathbb{S} (K)$, where $\mathbb{L}$ is the periodic simply-connected surgery spectrum and ...

  • Publication . Preprint . Article . 2018
    Open Access English
    Authors: 
    Soubiran, C.; Jasniewicz, G.; Chemin, L.; Zurbach, C.; Brouillet, N.; Panuzzo, P.; Sartoretti, P.; Katz, D.; Le Campion, J.-F.; Marchal, O.; +32 more
    Publisher: HAL CCSD
    Countries: Belgium, France

    Aims. The Radial Velocity Spectrometer (RVS) on board the ESA satellite mission Gaia has no calibration device. Therefore, the radial velocity zero point needs to be calibrated with stars that are proved to be stable at a level of 300 m/s during the Gaia observations. M...

  • Open Access English
    Authors: 
    Ellen, Faith; Gelashvili, Rati; Shavit, Nir; Zhu, Leqi;
    Country: United States
    Project: NSF | BIGDATA: IA: DKA: Collabo... (1447786), NSF | SHF: Medium: Collaborativ... (1301926), NSF | SHF: Small: Multicore Dat... (1217921), NSERC

    © 2016 ACM. For many years, Herlihy's elegant computability based Con- sensus Hierarchy has been our best explanation of the rela- tive power of various types of multiprocessor synchronization objects when used in deterministic algorithms. However, key to this hierarchy...

  • Open Access English
    Authors: 
    Chen, Sitan; Meka, Raghu;
    Project: NSF | CAREER: Algorithmic Aspec... (1453261)

    Polynomial regression is a basic primitive in learning and statistics. In its most basic form the goal is to fit a degree $d$ polynomial to a response variable $y$ in terms of an $n$-dimensional input vector $x$. This is extremely well-studied with many applications and...

  • Publication . Article . Preprint . 2015
    Open Access
    Authors: 
    Zollo, Fabiana; Bessi, Alessandro; Del Vicario, Michela; Scala, Antonio; Caldarelli, Guido; Shekhtman, Louis; Havlin, Shlomo; Quattrociocchi, Walter;
    Project: EC | DOLFINS (640772), EC | SoBigData (654024), EC | MULTIPLEX (317532), EC | SIMPOL (610704)

    Recently a simple military exercise on the Internet was perceived as the beginning of a new civil war in the US. Social media aggregate people around common interests eliciting a collective framing of narratives and worldviews. However, the wide availability of user-pro...

  • Open Access English
    Authors: 
    Hana Uršič; Vid Bobnar; Barbara Malic; Cene Filipič; Marko Vrabelj; Silvo Drnovšek; Younghun Jo; Magdalena Wencka; Zdravko Kutnjak;
    Publisher: Nature Publishing Group
    Project: EC | NANOMAG (295190)

    The existence and feasibility of the multicaloric, polycrystalline material 0.8Pb(Fe1/2Nb1/2)O3-0.2Pb(Mg1/2W1/2)O3, exhibiting magnetocaloric and electrocaloric properties, are demonstrated. Both the electrocaloric and magnetocaloric effects are observed over a broad te...

  • Open Access
    Authors: 
    Ljubotina, Marko; Žnidarič, Marko; Prosen, Tomaž;
    Publisher: IOP Publishing
    Project: EC | OMNES (694544)

    The spin transport in isotropic Heisenberg model in the sector with zero magnetization is generically super-diffusive. Despite that, we here demonstrate that for a specific set of domain-wall-like initial product states it can instead be diffusive. We theoretically expl...

  • Publication . Article . Preprint . 2013
    Open Access
    Authors: 
    Valeriy V. Dvoeglazov;
    Publisher: IOP Publishing
    Country: Slovenia

    In the sixties Ogievetskii and Polubarinov proposed the concept of a notoph, whose helicity properties are complementary to those of a photon. Later, Kalb and Ramond (and others) developed this theoretical concept. And, at the present times it is widely accepted. We ana...