Confinement of antiprotons in the electrostatic space charge of positrons in a model of the ALPHA antihydrogen trap (open access)

Confinement of antiprotons in the electrostatic space charge of positrons in a model of the ALPHA antihydrogen trap

This article details the equilibrium of a positron plasma in a model of the ALPHA apparatus that is computed using a finite-difference method. The positron plasma in the model extends to axial magnetic mirrors in absence of an octupole field. Formation of a three-dimensional electrostatic potential well is found to occur self-consistently. Well depths under various conditions are evaluated. Also, the equilibrium with an antiproton plasma confined in the potential well is computed.
Date: March 17, 2016
Creator: Lane, Ryan A. & Ordonez, Carlos A.
System: The UNT Digital Library
Giant cross-magnetic-field steps due to binary collisions between pair particles (open access)

Giant cross-magnetic-field steps due to binary collisions between pair particles

Article explores giant cross-magnetic-field steps which occur as a result of positron-electron collisions. Within a constant magnetic field (e.g., 1 T), a collision between a positron and an electron can result in a correlated drift across the magnetic field for a continuous range of impact parameters. Within this range, drift distances orders of magnitude larger than that associated with like-charge collisions were observed by computer simulation.
Date: March 5, 2015
Creator: Aguirre, F. F. & Ordonez, Carlos A.
System: The UNT Digital Library
Intrinsic electrical transport properties of monolayer silicene and MoS₂ from first principles (open access)

Intrinsic electrical transport properties of monolayer silicene and MoS₂ from first principles

Article on intrinsic electrical transport properties of monolayer silicene and MoS₂ from first principles.
Date: March 15, 2013
Creator: Li, Xiaodong; Mullen, Jeffrey T.; Jin, Zhenghe; Borysenko, Kostyantyn M.; Buongiorno Nardelli, Marco & Kim, Ki Wook
System: The UNT Digital Library
Role of committed minorities in times of crisis (open access)

Role of committed minorities in times of crisis

Article discussing the role of committed minorities in time of crisis.
Date: March 4, 2013
Creator: Turalska, Malgorzata; West, Bruce J. & Grigolini, Paolo
System: The UNT Digital Library
Simulation of an aperture-based antihydrogen gravity experiment (open access)

Simulation of an aperture-based antihydrogen gravity experiment

This article presents a Monte Carlo simulation of an experiment that could potentially determine whether antihydrogen accelerates vertically up or down as a result of earth's gravity.
Date: March 21, 2012
Creator: Ordonez, Carlos A. & Hedlof, R. M.
System: The UNT Digital Library
Cooperation-induced topological complexity: a promising road to fault tolerance and Hebbian learning (open access)

Cooperation-induced topological complexity: a promising road to fault tolerance and Hebbian learning

This article discusses cooperation-induced topological complexity and the emergence of intelligence.
Date: March 16, 2012
Creator: Turalska, Malgorzata; Geneston, Elvis L.; West, Bruce J.; Allegrini, Paolo & Grigolini, Paolo
System: The UNT Digital Library
Multiple coexisting intercalation structures of sodium in epitaxial graphene-SiC interfaces (open access)

Multiple coexisting intercalation structures of sodium in epitaxial graphene-SiC interfaces

This article discusses multiple coexisting intercalation structures of sodium in peitaxial graphene-SiC interfaces.
Date: March 9, 2012
Creator: Sandin, Andreas; Jayasekera, Thushari; Rowe, J. E.; Kim, Ki Wook; Buongiorno Nardelli, Marco & Dougherty, Daniel B.
System: The UNT Digital Library
Extreme Star Formation in the Host Galaxies of the Fastest Growing Supermassive Black Holes at z = 4.8 (open access)

Extreme Star Formation in the Host Galaxies of the Fastest Growing Supermassive Black Holes at z = 4.8

This article reports new Herschel observations of extremely luminous optically selected active galactic nuclei.
Date: March 5, 2012
Creator: Mor, Rivay; Netzer, Hagai; Trakhtenbrot, Benny; Shemmer, Ohad & Lira, Paulina
System: The UNT Digital Library
Experimental observation of carrier-envelope-phase effects by multicycle pulses (open access)

Experimental observation of carrier-envelope-phase effects by multicycle pulses

Article on experimental observation of carrier-envelope phase effect by multicycle pulses.
Date: March 10, 2011
Creator: Jha, Pankaj K.; Rostovtsev, Yuri V.; Li, Hebin; Sautenkov, Vladimir A. & Scully, Marlan O. (Marlan Orvil), 1939-
System: The UNT Digital Library
CO Adsorption on Noble Metal Clusters: Local Environment Effects (open access)

CO Adsorption on Noble Metal Clusters: Local Environment Effects

Article on CO adsorption on noble metal clusters and local environmental effects.
Date: March 7, 2011
Creator: Buongiorno Nardelli, Marco; Morrow, Brian H.; Resasco, Daniel E. & Striolo, Alberto
System: The UNT Digital Library
First-principles analysis of electron-phonon interactions in graphene (open access)

First-principles analysis of electron-phonon interactions in graphene

Article on first-principles analysis of electron-phonon interactions in graphene.
Date: March 16, 2010
Creator: Borysenko, Kostyantyn M.; Mullen, Jeffrey T.; Barry, E. A.; Paul, S.; Semenov, Yuriy G.; Zavada, J. M. et al.
System: The UNT Digital Library
Coherent excitation of a two-level atom driven by a far-off-resonant classical field: Analytical solutions (open access)

Coherent excitation of a two-level atom driven by a far-off-resonant classical field: Analytical solutions

Article on coherent excitation of a two-level atom driven by a far off-resonant classical field.
Date: March 15, 2010
Creator: Jha, Pankaj K. & Rostovtsev, Yuri V.
System: The UNT Digital Library
Dynamics of Electroencephalogram Entropy and Pitfalls of Scaling Detection (open access)

Dynamics of Electroencephalogram Entropy and Pitfalls of Scaling Detection

This article discusses dynamics of electroencephalogram entropy and pitfalls of scaling detection. Herein the authors study the time evolution of diffusion entropy to elucidate the scaling of EGG time series.
Date: March 10, 2010
Creator: Ignaccolo, Massimiliano; Latka, Miroslaw; Jernajczyk, Wojciech; Grigolini, Paolo & West, Bruce J.
System: The UNT Digital Library
Carrier-Envelope Phase Effect on Atomic Excitation by Few-Cycle rf Pulses (open access)

Carrier-Envelope Phase Effect on Atomic Excitation by Few-Cycle rf Pulses

Article on carrier-envelope phase effect on atomic excitation by few-cycle rf pulses.
Date: March 8, 2010
Creator: Li, Hebin; Sautenkov, Vladimir A.; Rostovtsev, Yuri V.; Kash, Michael M.; Anisimov, Petr M.; Welch, George R. et al.
System: The UNT Digital Library
The Dynamics of EEG Entropy (open access)

The Dynamics of EEG Entropy

This article discusses the dynamics of EEG entropy.
Date: March 5, 2009
Creator: Ignaccolo, Massimiliano; Latka, Miroslaw; Jernajczyk, Wojciech; Grigolini, Paolo & West, Bruce J.
System: The UNT Digital Library
Enhancement of Localization in One-Dimensional Random Potentials with Long-Range Correlations (open access)

Enhancement of Localization in One-Dimensional Random Potentials with Long-Range Correlations

This article discusses the enhancement of localization in one-dimensional random potentials with long-range correlations.
Date: March 28, 2008
Creator: Kuhl, Ulrich; Izrailev, Felix M. & Krokhin, Arkadii A.
System: The UNT Digital Library
Work Function Changes Induced by Charged Adsorbates: Origin of the Polarity Asymmetry (open access)

Work Function Changes Induced by Charged Adsorbates: Origin of the Polarity Asymmetry

Article discussing work function changes induced by charged adsorbates and the origin of the polarity asymmetry.
Date: March 28, 2008
Creator: Bagus, Paul S.; Käfer, Daniel; Witte, Gregor & Wöll, Christof
System: The UNT Digital Library
PAH Emission and Star Formation in the Host of the z ~ 2.56 Cloverleaf QSO (open access)

PAH Emission and Star Formation in the Host of the z ~ 2.56 Cloverleaf QSO

This article reports the first detection of the 6.2 and 7.7 μm infrared polycyclic aromatic hydrocarbon emission features in the spectrum of a high-redshift QSO, from the Spitzer IRS spectrum of the Cloverleaf lensed QSO.
Date: March 30, 2007
Creator: Lutz, Dieter; Sturm, Eckhard; Tacconi, Linda; Valiante, Elisabetta; Schweitzer, Mario; Netzer, Hagai et al.
System: The UNT Digital Library
GRB 060505: A Possible Short-Duration Gamma-Ray Burst in a Star-Forming Region at a Redshift of 0.09 (open access)

GRB 060505: A Possible Short-Duration Gamma-Ray Burst in a Star-Forming Region at a Redshift of 0.09

This article reports the discovery of the GRB optical afterglow and observations of its environment using Gemini South, the Hubble Space Telescope, Chandra, Swift, and the Very Large Array.
Date: March 13, 2007
Creator: Ofek, Efran; Cenko, Brad; Gal-Yam, Avishay; Fox, Derek B.; Nakar, Ehud; Rau, Arne et al.
System: The UNT Digital Library
A fluctuating environment as a source of periodic modulation (open access)

A fluctuating environment as a source of periodic modulation

Article discussing a fluctuating environment as a source of periodic modulation.
Date: March 12, 2007
Creator: Bianco, Simone; Grigolini, Paolo & Paradisi, Paolo
System: The UNT Digital Library
First-Principles Theory of Correlated Transport through Nanojunctions (open access)

First-Principles Theory of Correlated Transport through Nanojunctions

Article on the first-principles theory of correlated transport through nanojunctions.
Date: March 25, 2005
Creator: Ferretti, A.; Calzolari, Arrigo; Di Felice, R.; Manghi, F.; Caldas, Marilia J.; Buongiorno Nardelli, Marco et al.
System: The UNT Digital Library
Mega et al. Reply (open access)

Mega et al. Reply

This article is a reply to a comment by A. Helmstetter and D. Sornette about the article 'Power-Law Time Distribution of Large Earthquakes' from 2003.
Date: March 26, 2004
Creator: Mega, Mirko S.; Allegrini, Paolo; Grigolini, Paolo; Latora, Vito; Palatella, Luigi; Rapisarda, Andrea et al.
System: The UNT Digital Library
Supernova 2002ap: the first month (open access)

Supernova 2002ap: the first month

This article reports the results of the first month of an intensive photometric and spectroscopic monitoring campaign of Supernova 2002ap.
Date: March 27, 2002
Creator: Gal-Yam, Avishay; Ofek, Efran & Shemmer, Ohad
System: The UNT Digital Library
Ultimate strength of carbon nanotubes: A theoretical study (open access)

Ultimate strength of carbon nanotubes: A theoretical study

Article on a theoretical study of the ultimate strength of carbon nanotubes.
Date: March 27, 2002
Creator: Zhao, Qingzhong; Buongiorno Nardelli, Marco & Bernholc, Jerry
System: The UNT Digital Library