Now showing items 1-20 of 1016

    • 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 ...
    • 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 ...
    • 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 ...
    • 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 ...
    • 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 ...
    • Continuous transition between weak and ultrastrong coupling through exceptional points in carbon nanotube microcavity exciton–polaritons 

      Gao, Weilu; Li, Xinwei; Bamba, Motoaki; Kono, Junichiro (2018)
      Non-perturbative coupling of photons and excitons produces hybrid particles, exciton–polaritons, which have exhibited a variety of many-body phenomena in various microcavity systems. However, the vacuum Rabi splitting ...
    • Vacuum Bloch–Siegert shift in Landau polaritons with ultra-high cooperativity 

      Li, Xinwei; Bamba, Motoaki; Zhang, Qi; Fallahi, Saeed; Gardner, Geoff C.; Gao, Weilu; Lou, Minhan; Yoshioka, Katsumasa; Manfra, Michael J.; Kono, Junichiro (2018)
      A two-level system resonantly interacting with an a.c. magnetic or electric field constitutes the physical basis of diverse phenomena and technologies. However, Schrödinger’s equation for this seemingly simple system can ...
    • Kondo hybridization and quantum criticality in β−YbAlB4 by laser ARPES 

      Bareille, Cédric; Suzuki, Shintaro; Nakayama, Mitsuhiro; Kuroda, Kenta; Nevidomskyy, Andriy H.; Matsumoto, Yosuke; Nakatsuji, Satoru; Kondo, Takeshi; Shin, Shik (2018)
      We report an angle-resolved photoemission (ARPES) study of β−YbAlB4, which is known to harbor unconventional quantum criticality (QC) without any tuning. We directly observe a quasiparticle peak (QP) emerging from ...
    • Resonant Inverse Compton Scattering Spectra from Highly Magnetized Neutron Stars 

      Wadiasingh, Zorawar; Baring, Matthew G.; Gonthier, Peter L.; Harding, Alice K. (2018)
      Hard, nonthermal, persistent pulsed X-ray emission extending between 10 and ~150 keV has been observed in nearly 10 magnetars. For inner-magnetospheric models of such emission, resonant inverse Compton scattering of soft ...
    • Investigating the Early Evolution of Planetary Systems with ALMA and the Next Generation Very Large Array 

      Ricci, Luca; Liu, Shang-Fei; Isella, Andrea; Li, Hui (2018)
      We investigate the potential of the Atacama Large Millimeter/submillimeter Array (ALMA) and the Next Generation Very Large Array (ngVLA) to observe substructures in nearby young disks which are due to the gravitational ...
    • Hartree–Fock symmetry breaking around conical intersections 

      Jake, Lena C.; Henderson, Thomas M.; Scuseria, Gustavo E. (2018)
      We study the behavior of Hartree-Fock (HF) solutions in the vicinity of conical intersections. These are here understood as regions of a molecular potential energy surface characterized by degenerate or nearly degenerate ...
    • K2ᅠReveals Pulsed Accretion Driven by the 2 Myr Old Hot Jupiter CI Tau b 

      Biddle, Lauren I.; Johns-Krull, Christopher M.; Llama, Joe; Prato, Lisa; Skiff, Brian A. (2018)
      CIᅠTau is a young (~2 Myr) classical T Tauri star located in the Taurus star-forming region. Radial velocity observations indicate it hosts a Jupiter-sized planet with an orbital period of approximately 9 days. In this ...
    • Van Allen Probes Observations of Second Harmonic Poloidal Standing Alfvén Waves 

      Takahashi, Kazue; Oimatsu, Satoshi; Nosé, Masahito; Min, Kyungguk; Claudepierre, Seth G.; Chan, Anthony; Wygant, John; Kim, Hyomin (2018)
      Long-lasting second-harmonic poloidal standing Alfvén waves (P2 waves) were observed by the twin Van Allen Probes (Radiation Belt Storm Probes, or RBSP) spacecraft in the noon sector of the plasmasphere, when the spacecraft ...
    • Synthetic dimensions in ultracold polar molecules 

      Sundar, Bhuvanesh; Gadway, Bryce; Hazzard, Kaden R.A. (2018)
      Synthetic dimensions alter one of the most fundamental properties in nature, the dimension of space. They allow, for example, a real three-dimensional system to act as effectively four-dimensional. Driven by such possibilities, ...
    • Scaling of Relativistic Shear Flows with the Bulk Lorentz Factor 

      Liang, Edison; Fu, Wen; Böttcher, Markus; Roustazadeh, Parisa (2018)
      We compare Particle-in-cell simulation results of relativistic electron–ion shear flows with different bulk Lorentz factors, and discuss their implications for spine-sheath models of blazar versus gamma-ray burst (GRB) ...
    • Direct observation of spin excitation anisotropy in the paramagnetic orthorhombic state of BaFe2−xNixAs2 

      Man, Haoran; Zhang, Rui; Park, J.T.; Lu, Xingye; Kulda, J.; Ivanov, A.; Dai, Pengcheng (2018)
      We use transport and inelastic neutron-scattering measurements to investigate single crystals of iron pnictide BaFe2−xNixAs2(x=0,0.03), which exhibit a tetragonal-to-orthorhombic structural transition at Ts and stripe ...
    • The unique fold and lability of the [2Fe-2S] clusters of NEET proteins mediate their key functions in health and disease 

      Karmi, Ola; Marjault, Henri-Baptiste; Pesce, Luca; Carloni, Paolo; Onuchic, José N.; Jennings, Patricia A.; Mittler, Ron; Nechushtai, Rachel (2018)
      NEET proteins comprise a new class of [2Fe-2S] cluster proteins. In human, three genes encode for NEET proteins: cisd1 encodes mitoNEET (mNT), cisd2 encodes the Nutrient-deprivation autophagy factor-1 (NAF-1) and cisd3 ...
    • Autoionization of very-high-n strontium Rydberg states 

      Fields, G.; Zhang, X.; Dunning, F.B.; Yoshida, S.; Burgdörfer, J. (2018)
      We study, using a combination of experiment and theory, the excitation and decay of very-high-n(n∼280–430) strontium autoionizing Rydberg states formed by near-resonant driving of the 5s2S1/2→5p2P1/2 core-ion transition. ...
    • Creation of Rydberg Polarons in a Bose Gas 

      Camargo, F.; Schmidt, R.; Whalen, J.D.; Ding, R.; Woehl, G. Jr.; Yoshida, S.; Burgdörfer, J.; Dunning, F.B.; Sadeghpour, H.R.; Demler, E.; Killian, T.C. (2018)
      We report spectroscopic observation of Rydberg polarons in an atomic Bose gas. Polarons are created by excitation of Rydberg atoms as impurities in a strontium Bose-Einstein condensate. They are distinguished from previously ...
    • On the difference between variational and unitary coupled cluster theories 

      Harsha, Gaurav; Shiozaki, Toru; Scuseria, Gustavo E. (2018)
      There have been assertions in the literature that the variational and unitary forms of coupled cluster theory lead to the same energy functional. Numerical evidence from previous authors was inconsistent with this claim, ...