Search Results - "Hess, P. W."

Observation of a many-body dynamical phase transition with a 53-qubit quantum simulator by Zhang, J., Pagano, G., Hess, P. W., Kyprianidis, A., Becker, P., Kaplan, H., Gorshkov, A. V., Gong, Z.-X., Monroe, C.

“…Many-body dynamical phases in an Ising-like quantum spin model with long-range interactions are observed by measuring correlations in single shots, using a…”
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Programmable quantum simulations of spin systems with trapped ions by Monroe, C., Campbell, W. C., Duan, L.-M., Gong, Z.-X., Gorshkov, A. V., Hess, P. W., Islam, R., Kim, K., Linke, N. M., Pagano, G., Richerme, P., Senko, C., Yao, N. Y.

“…Laser-cooled and trapped atomic ions form an ideal standard for the simulation of interacting quantum spin models. Effective spins are represented by…”
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Observation of a prethermal discrete time crystal by Kyprianidis, A., Machado, F., Morong, W., Becker, P., Collins, K. S., Else, D. V., Feng, L., Hess, P. W., Nayak, C., Pagano, G., Yao, N. Y., Monroe, C.

“…Prethermal time crystal Characterizing and understanding different phases of matter in equilibrium is usually associated with the process of thermalization,…”
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Order of Magnitude Smaller Limit on the Electric Dipole Moment of the Electron by Baron, J., Campbell, W. C., DeMille, D., Doyle, J. M., Gabrielse, G., Gurevich, Y. V., Hess, P. W., Hutzler, N. R., Kirilov, E., Kozyryev, I., O'Leary, B. R., Panda, C. D., Parsons, M. F., Petrik, E. S., Spaun, B., Vutha, A. C., West, A. D.

“…The Standard Model of particle physics is known to be incomplete. Extensions to the Standard Model, such as weak-scale supersymmetry, posit the existence of…”
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Role of Photoexcitation and Field Ionization in the Measurement of Accurate Oxide Stoichiometry by Laser-Assisted Atom Probe Tomography by Devaraj, A, Colby, R, Hess, W. P, Perea, D. E, Thevuthasan, S

“…The addition of pulsed lasers to atom probe tomography (APT) extends its high spatial and mass resolution capability to nonconducting materials, such as…”
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Methods, analysis, and the treatment of systematic errors for the electron electric dipole moment search in thorium monoxide by Baron, J, Campbell, W C, DeMille, D, Doyle, J M, Gabrielse, G, Gurevich, Y V, Hess, P W, Hutzler, N R, Kirilov, E, Kozyryev, I, O'Leary, B R, Panda, C D, Parsons, M F, Spaun, B, Vutha, A C, West, A D, West, E P, Collaboration, ACME

“…We recently set a new limit on the electric dipole moment of the electron (eEDM) (J Baron et al and ACME collaboration 2014 Science 343 269-272), which…”
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Non-thermalization in trapped atomic ion spin chains by Hess, P. W., Becker, P., Kaplan, H. B., Kyprianidis, A., Lee, A. C., Neyenhuis, B., Pagano, G., Richerme, P., Senko, C., Smith, J., Tan, W. L., Zhang, J., Monroe, C.

“…Linear arrays of trapped and laser-cooled atomic ions are a versatile platform for studying strongly interacting many-body quantum systems. Effective spins are…”
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Photoinduced Br Desorption from CsBr Thin Films Grown on Cu(100) by Halliday, M. T. E, Joly, A. G, Hess, W. P, Shluger, A. L

“…Thin films of CsBr deposited onto metals such as copper are potential photocathode materials for light sources and other applications. We investigate…”
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Observation of a discrete time crystal by Zhang, J., Hess, P. W., Kyprianidis, A., Becker, P., Lee, A., Smith, J., Pagano, G., Potirniche, I.-D., Potter, A. C., Vishwanath, A., Yao, N. Y., Monroe, C.

“…A time crystal is a state of matter that shows robust oscillations in time, and although forbidden in equilibrium, a discrete time crystal has now been…”
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Many-body localization in a quantum simulator with programmable random disorder by Smith, J., Lee, A., Richerme, P., Neyenhuis, B., Hess, P. W., Hauke, P., Heyl, M., Huse, D. A., Monroe, C.

“…Interacting quantum systems are expected to thermalize, but in some situations in the presence of disorder they can exist in localized states instead. This…”
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Surface science analysis of GaAs photocathodes following sustained electron beam delivery by Shutthanandan, V., Zhu, Z., Stutzman, M. L., Hannon, F. E., Hernandez-Garcia, C., Nandasiri, M. I., Kuchibhatla, S. V. N. T., Thevuthasan, S., Hess, W. P.

“…Degradation of the photocathode materials employed in photoinjectors represents a challenge for sustained operation of nuclear physics accelerators and high…”
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Excitation, Ionization, and Desorption: How Sub-Band Gap Photons Modify the Structure of Oxide Nanoparticles by Trevisanutto, P. E, Sushko, P. V, Beck, K. M, Joly, A. G, Hess, W. P, Shluger, A. L

“…Nanoparticles of wide band gap materials MgO and CaO, subjected to low-intensity ultraviolet irradiation with 266 nm (4.66 eV) photons, emit hyperthermal…”
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A mechanism of photo-induced desorption of oxygen atoms from MgO nano-crystals by Trevisanutto, P.E., Sushko, P.V., Shluger, A.L., Beck, K.M., Henyk, M., Joly, A.G., Hess, W.P.

“…Using embedded cluster quantum mechanical calculations we developed a model of photo-induced processes and desorption of MgO surface corners. Our calculations…”
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Plasmon-enhanced photocathode for high brightness and high repetition rate x-ray sources by Polyakov, A, Senft, C, Thompson, K F, Feng, J, Cabrini, S, Schuck, P J, Padmore, H A, Peppernick, S J, Hess, W P

“…In this Letter, we report on the efficient generation of electrons from metals using multiphoton photoemission by use of nanostructured plasmonic surfaces to…”
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Photoemission Electron Microscopy of TiO2 Anatase Films Embedded with Rutile Nanocrystals by Xiong, G., Shao, R., Droubay, T. C., Joly, A. G., Beck, K. M., Chambers, S. A., Hess, W. P.

“…Photoemission electron microscopy (PEEM) excited by X‐ray and UV sources is used to investigate epitaxial anatase thin films with embedded rutile nanocrystals,…”
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Work function reduction by BaO: Growth of crystalline barium oxide on Ag(001) and Ag(111) surfaces by Droubay, T.C., Kong, L., Chambers, S.A., Hess, W.P.

“…Ultrathin films of barium oxide were grown on Ag(001) and Ag(111) using the evaporation of Ba metal in an O2 atmosphere by molecular beam epitaxy. Ultraviolet…”
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Ferroelectricity in Water Ice by Iedema, M. J, Dresser, M. J, Doering, D. L, Rowland, J. B, Hess, W. P, Tsekouras, A. A, Cowin, J. P

“…Partially proton-ordered ice I (cubic) was grown from the vapor phase, from 40 to nearly 150 K. It is believed to be metastable and oriented by the asymmetry…”
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An in situ study of the martensitic transformation in shape memory alloys using photoemission electron microscopy by Cai, M., Langford, S.C., Dickinson, J.T., Xiong, Gang, Droubay, T.C., Joly, A.G., Beck, K.M., Hess, W.P.

“…Thermally-induced martensitic phase transformations in polycrystalline CuZnAl and thin-film NiTiCu shape memory alloys were probed using photoemission electron…”
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Surface electronic spectra detected by atomic desorption by Joly, A.G., Beck, K.M., Henyk, M., Hess, W.P., Sushko, P.V., Shluger, A.L.

“…Using continuously tunable laser excitation of KI we measure the desorption yield of hyperthermal iodine atoms as a function of photon energy. Based on a…”
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Broad distribution of crystal-field environments for Nd3+ in calcite by Withers, S H, Peale, R E, Schulte, A F, Braunstein, G, Beck, K M, Hess, W P, Reeder, R J

“…Calcite crystals were grown from solution with single-crystal dimensions up to 3 mm and doped up to ∼0.1 at% with Nd3+ ions. Phase purity was verified by…”
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