Publications related to Astrophysics

Mixed Quantum Mechanical/Molecular Mechanical (QM/MM) simulations of Adiabatic and Nonadiabatic Ultrafast Phenomena

Ursula Röthlisberger, Ivano Tavernelli, Basile Curchod, Thomas James Penfold, Pablo Campomanes Ramos, Marilisa Neri, Stefano Vanni, Andrey Laktionov

A thorough theoretical description of ultrafast phenomena that occur in complex systems constitutes a formidable challenge. It not only necessitates the use of quantum mechanical methods that can describe ground and possibly even electronically excited sta ...

Schweizerische Chemische Gesellschaft2011

D-finder 2: Towards efficient correctness of incremental design

Joseph Sifakis

D-Finder 2 is a new tool for deadlock detection in concurrent systems based on effective invariant computation to approximate the effects of interactions among modules. It is part of the BIP framework, which provides various tools centered on a component-b ...

2011

Cosmological parameters from large scale structure - geometric versus shape information

Julien Lesgourgues, Jan Hamann

The matter power spectrum as derived from large scale structure (LSS) surveys contains two important and distinct pieces of information: an overall smooth shape and the imprint of baryon acoustic oscillations (BAO). We investigate the separate impact of th ...

2010

Transactional memory, linking theory and practice

Vincent Gramoli, Srivatsan Ravi

Transactional memory appears promising for democratizing concurrent programming. Its potential lies in producing code that is extensible as atomicity is preserved under composition of transactions. This new abstraction raises several challenges such as the ...

2010

TRANSVERSE MODE COUPLING INSTABILITY MEASUREMENTS AT TRANSITION CROSSING IN THE CERN PS

Sandra Aumon

Transition crossing in the CERN PS is critical for the stability of high intensity beams, even with the use of a second order gamma jump scheme. The intense single bunch beam used for the neutron Time-of-Flight facility (n-ToF) needs a controlled longitudi ...

2010

Comments on origins of enhanced piezoelectric properties in ferroelectrics

Dragan Damjanovic

This review discusses recent advances in understanding origins of large piezoelectric properties in some ferroelectric materials. In particular, it addresses the role of polarization rotation and monoclinic phases. It is suggested that the polarization rot ...

2009

Networks of mixed canonical-dissipative systems and dynamic hebbian learning

Max-Olivier Hongler, Julio Rodriguez

We study the dynamics of a network consisting of N diffusively coupled, stable- limit-cycle oscillators on which individual frequencies are parametrized by

w_k, k = 1, . . . ,N

. We introduce a learning rule which influences the wk by driving the system t ...

2009

Photometric membership and metallicities of red giant candidates in selected open clusters

Jean-Claude Mermilliod

As part of a long-term project to determine abundances and astrophysical properties of evolved red stars in open clusters, we present high-precision DDO photoelectric observations for a sample of 33 red giant candidates projected in the fields of nine Gala ...

2008

Towards structural dynamics research with ultrashort pulse lasers and synchrotron radiation

Majed Chergui, Melanie Saes

The authors present a new technique to record single x-ray pulses in time-resolved x-ray absorption spectra spectroscopy (XAS) expts. at low frequencies around 1 kHz compared to the multibunch repetition rate at synchrotron radiation storage rings of sever ...

2002

Growth mechanism and additional constraints on FeNi metal condensation in the solar nebula

Anders Meibom

Chemically zoned FeNi metal grains in the metal-rich chondrites QUE 94411 and Hammadah al Hamra 237 formed by gas-solid condensation in the temperature range from similar to1500 to 1400 K during highly energetic thermal events in the solar nebula. We obser ...

2001

Astrophysics

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Mixed Quantum Mechanical/Molecular Mechanical (QM/MM) simulations of Adiabatic and Nonadiabatic Ultrafast Phenomena

D-finder 2: Towards efficient correctness of incremental design

Cosmological parameters from large scale structure - geometric versus shape information

Transactional memory, linking theory and practice

TRANSVERSE MODE COUPLING INSTABILITY MEASUREMENTS AT TRANSITION CROSSING IN THE CERN PS

Comments on origins of enhanced piezoelectric properties in ferroelectrics

Networks of mixed canonical-dissipative systems and dynamic hebbian learning

Photometric membership and metallicities of red giant candidates in selected open clusters

Towards structural dynamics research with ultrashort pulse lasers and synchrotron radiation

Growth mechanism and additional constraints on FeNi metal condensation in the solar nebula

Comments on origins of enhanced piezoelectric properties in ferroelectrics

Photometric membership and metallicities of red giant candidates in selected open clusters

Towards structural dynamics research with ultrashort pulse lasers and synchrotron radiation

Transactional memory, linking theory and practice

Mixed Quantum Mechanical/Molecular Mechanical (QM/MM) simulations of Adiabatic and Nonadiabatic Ultrafast Phenomena

TRANSVERSE MODE COUPLING INSTABILITY MEASUREMENTS AT TRANSITION CROSSING IN THE CERN PS

D-finder 2: Towards efficient correctness of incremental design

Cosmological parameters from large scale structure - geometric versus shape information

Networks of mixed canonical-dissipative systems and dynamic hebbian learning

Growth mechanism and additional constraints on FeNi metal condensation in the solar nebula