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Recent Submissions

  • Self-resonance after inflation: Oscillons, transients, and radiation domination 

    Lozanov, Kaloian D.; Amin, Mustafa A. (2018)
    Homogeneous oscillations of the inflaton after inflation can be unstable to small spatial perturbations even without coupling to other fields. We show that for inflaton potentials ∝|ϕ|2n near |ϕ|=0 and flatter beyond ...
  • Simultaneous measurements of microwave photoresistance and cyclotron reflection in the multiphoton regime 

    Zhang, Jie; Du, Rui-Rui; Pfeiffer, L.N.; West, K.W. (2018)
    We simultaneously measure photoresistance with electrical transport and coupled plasmon-cyclotron resonance using microwave reflection spectroscopy in high-mobility GaAs/AlGaAs quantum wells under a perpendicular magnetic ...
  • Magnetooptics of Exciton Rydberg States in a Monolayer Semiconductor 

    Stier, A.V.; Wilson, N.P.; Velizhanin, K.A.; Kono, J.; Xu, X.; Crooker, S.A. (2018)
    We report 65 T magnetoabsorption spectroscopy of exciton Rydberg states in the archetypal monolayer semiconductor WSe2. The strongly field-dependent and distinct energy shifts of the 2s, 3s, and 4s excited neutral excitons ...
  • Carbon nanotube woven textile photodetector 

    Zubair, Ahmed; Wang, Xuan; Mirri, Francesca; Tsentalovich, Dmitri E.; Fujimura, Naoki; Suzuki, Daichi; Soundarapandian, Karuppasamy P.; Kawano, Yukio; Pasquali, Matteo; Kono, Junichiro (2018)
    The increasing interest in mobile and wearable technology demands the enhancement of functionality of clothing through incorporation of sophisticated architectures of multifunctional materials. Flexible electronic and ...
  • CO and Dust Properties in the TW Hya Disk from High-resolution ALMA Observations 

    Huang, Jane; Andrews, Sean M.; Cleeves, L. Ilsedore; Öberg, Karin I.; Wilner, David J.; Bai, Xuening; Birnstiel, Til; Carpenter, John; Hughes, A. Meredith; Isella, Andrea; Pérez, Laura M.; Ricci, Luca; Zhu, Zhaohuan (2018)
    We analyze high angular resolution ALMA observations of the TW Hya disk to place constraints on the CO and dust properties. We present new, sensitive observations of the 12CO J = 3 − 2 line at a spatial resolution of 8 au ...
  • Unified spin model for magnetic excitations in iron chalcogenides 

    Ergueta, Patricia Bilbao; Hu, Wen-Jun; Nevidomskyy, Andriy H. (2017)
    Recent inelastic neutron scattering (INS) measurements on FeSe and Fe(Te1−xSex) have sparked intense debate over the nature of the ground state in these materials. Here we propose an effective bilinear-biquadratic spin ...
  • High-yield single-step catalytic growth of graphene nanostripes by plasma enhanced chemical vapor deposition 

    Hsu, Chen-Chih; Bagley, Jacob D.; Teague, Marcus L.; Tseng, Wei-Shiuan; Yang, Kathleen L.; Zhang, Yiran; Li, Yiliang; Li, Yilun; Tour, James M.; Yeh, N.-C. (2018)
    We report a single-step growth process of graphene nanostripes (GNSPs) by adding certain substituted aromatics (e.g., 1,2-dichlorobenzene) as precursors during the plasma enhanced chemical vapor deposition (PECVD). Without ...
  • Stochastic dynamics of genetic broadcasting networks 

    Potoyan, Davit A.; Wolynes, Peter G. (2017)
    The complex genetic programs of eukaryotic cells are often regulated by key transcription factors occupying or clearing out of a large number of genomic locations. Orchestrating the residence times of these factors is ...
  • Correlation-driven metal-insulator transition in proximity to an iron-based superconductor 

    Charnukha, A.; Yin, Z.P.; Song, Y.; Cao, C.D.; Dai, Pengcheng; Haule, K.; Kotliar, G.; Basov, D.N. (2017)
    We report the direct spectroscopic observation of a metal to correlated-insulator transition in the family of iron-based superconducting materials. By means of optical spectroscopy we demonstrate that the excitation spectrum ...
  • Temperature and polarization dependence of low-energy magnetic fluctuations in nearly optimally doped NaFe0.9785Co0.0215As 

    Song, Yu; Wang, Weiyi; Zhang, Chenglin; Gu, Yanhong; Lu, Xingye; Tan, Guotai; Su, Yixi; Bourdarot, Frédéric; Christianson, A.D.; Li, Shiliang; Dai, Pengcheng (2017)
    We use unpolarized and polarized neutron scattering to study the temperature and polarization dependence of low-energy magnetic fluctuations in nearly optimally doped NaFe0.9785Co0.0215As, with coexisting superconductivi ...
  • Spin excitation anisotropy in the optimally isovalent-doped superconductor BaFe2(As0.7P0.3)2 

    Hu, Ding; Zhang, Wenliang; Wei, Yuan; Roessli, Bertrand; Skoulatos, Markos; Regnault, Louis Pierre; Chen, Genfu; Song, Yu; Luo, Huiqian; Li, Shiliang; Dai, Pengcheng (2017)
    We use neutron polarization analysis to study spin excitation anisotropy in the optimally isovalent-doped superconductor BaFe2(As0.7P0.3)2 (Tc=30 K). Different from optimally hole- and electron-doped BaFe2As2, where there ...
  • De novo prediction of human chromosome structures: Epigenetic marking patterns encode genome architecture 

    Di Pierro, Michele; Cheng, Ryan R.; Aiden, Erez Lieberman; Wolynes, Peter G.; Onuchic, José N. (2017)
    Inside the cell nucleus, genomes fold into organized structures that are characteristic of cell type. Here, we show that this chromatin architecture can be predicted de novo using epigenetic data derived from chromatin ...
  • Biotransport kinetics and intratumoral biodistribution of malonodiserinolamide-derivatized [60]fullerene in a murine model of breast adenocarcinoma 

    Lapin, Norman A.; Vergara, Leoncio A.; Mackeyev, Yuri; Newton, Jared M.; Dilliard, Sean A.; Wilson, Lon J.; Curley, Steven A.; Serda, Rita E. (2017)
    [60]Fullerene is a highly versatile nanoparticle (NP) platform for drug delivery to sites of pathology owing to its small size and both ease and versatility of chemical functionalization, facilitating multisite drug ...
  • Extreme enrichment in atmospheric 15N15N 

    Yeung, Laurence Y.; Li, Shuning; Kohl, Issaku E.; Haslun, Joshua A.; Ostrom, Nathaniel E.; Hu, Huanting; Fischer, Tobias P.; Schauble, Edwin A.; Young, Edward D. (2017)
    Molecular nitrogen (N2) comprises three-quarters of Earth’s atmosphere and significant portions of other planetary atmospheres. We report a 19 per mil (‰) excess of 15N15N in air relative to a random distribution of nitrogen ...
  • Open Problems and Conjectures Related to the Theory of Mathematical Quasicrystals 

    Adiceam, Faustin; Damanik, David; Gähler, Franz; Grimm, Uwe; Haynes, Alan; Julien, Antoine; Navas, Andrés; Sadun, Lorenzo; Weiss, Barak (2016)
    This list of problems arose as a collaborative effort among the participants of the Arbeitsgemeinschaft on Mathematical Quasicrystals, which was held at the Mathematisches Forschungsinstitut Oberwolfach in October 2015. ...
  • Charged iodide in chains behind the highly efficient iodine doping in carbon nanotubes 

    Zubair, Ahmed; Tristant, Damien; Nie, Chunyang; Tsentalovich, Dmitri E.; Headrick, Robert J.; Pasquali, Matteo; Kono, Junichiro; Meunier, Vincent; Flahaut, Emmanuel; Monthioux, Marc; Gerber, Iann C.; Puech, Pascal (2017)
    The origin of highly efficient iodine doping of carbon nanotubes is not well understood. Relying on first-principles calculations, we found that iodine molecules (I2) in contact with a carbon nanotube interact to form ...
  • Numb prevents a complete epithelial–mesenchymal transition by modulating Notch signalling 

    Bocci, Federico; Jolly, Mohit K.; Tripathi, Satyendra C.; Aguilar, Mitzi; Hanash, Samir M.; Levine, Herbert; Onuchic, José N. (2017)
    Epithelial–mesenchymal transition (EMT) plays key roles during embryonic development, wound healing and cancer metastasis. Cells in a partial EMT or hybrid epithelial/mesenchymal (E/M) phenotype exhibit collective cell ...
  • Dissociation of One-Dimensional Matter-Wave Breathers due to Quantum Many-Body Effects 

    Yurovsky, Vladimir A.; Malomed, Boris A.; Hulet, Randall G.; Olshanii, Maxim (2017)
    We use the ab initio Bethe ansatz dynamics to predict the dissociation of one-dimensional cold-atom breathers that are created by a quench from a fundamental soliton. We find that the dissociation is a robust quantum ...
  • Correlations and enlarged superconducting phase of t−J⊥ chains of ultracold molecules on optical lattices 

    Manmana, Salvatore R.; Möller, Marcel; Gezzi, Riccardo; Hazzard, Kaden R.A. (2017)
    We compute physical properties across the phase diagram of the t−J⊥ chain with long-range dipolar interactions, which describe ultracold polar molecules on optical lattices. Our results obtained by the density-matrix ...
  • Two-Dimensional Massless Dirac Fermions in Antiferromagnetic AFe2As2 (A=Ba,Sr) 

    Chen, Zhi-Guo; Wang, Luyang; Song, Yu; Lu, Xingye; Luo, Huiqian; Zhang, Chenglin; Dai, Pengcheng; Yin, Zhiping; Haule, Kristjan; Kotliar, Gabriel (2017)
    We report infrared studies of AFe2As2 (A=Ba, Sr), two representative parent compounds of iron-arsenide superconductors, at magnetic fields (B) up to 17.5 T. Optical transitions between Landau levels (LLs) were observed in ...

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