Frequency moments and spectral shape of quantum chains

Alessandro Cuccoli; Valerio Tognetti; Alexei A. Maradudin; Arthur R. McGurn; Ruggero Vaia

doi:10.1103/physrevb.46.8839

Frequency moments and spectral shape of quantum chains

Physical Review B ◽

10.1103/physrevb.46.8839 ◽

1992 ◽

Vol 46 (14) ◽

pp. 8839-8857 ◽

Cited By ~ 31

Author(s):

Alessandro Cuccoli ◽

Valerio Tognetti ◽

Alexei A. Maradudin ◽

Arthur R. McGurn ◽

Ruggero Vaia

Keyword(s):

Spectral Shape ◽

Frequency Moments

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On the applicability of the frequency moments method for the calculation of the spectral shape of a one-dimensional crystal

Physics Letters A ◽

10.1016/0375-9601(94)90223-2 ◽

1994 ◽

Vol 192 (5-6) ◽

pp. 379-384 ◽

Cited By ~ 5

Author(s):

Evgenii S. Freidkin ◽

George K. Horton ◽

E.Roger Cowley

Keyword(s):

Spectral Shape ◽

One Dimensional ◽

Frequency Moments ◽

Moments Method ◽

Dimensional Crystal

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Electrically Driven Near-Infrared Broadband Light Source with Gaussian-Like Spectral Shape Based on Multiple InAs Quantum Dots

IEICE Transactions on Electronics ◽

10.1587/transele.e99.c.381 ◽

2016 ◽

Vol E99.C (3) ◽

pp. 381-384 ◽

Cited By ~ 5

Author(s):

Takuma YASUDA ◽

Nobuhiko OZAKI ◽

Hiroshi SHIBATA ◽

Shunsuke OHKOUCHI ◽

Naoki IKEDA ◽

...

Keyword(s):

Quantum Dots ◽

Light Source ◽

Near Infrared ◽

Spectral Shape ◽

Inas Quantum Dots ◽

Broadband Light Source

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Spectral damping scaling factors for horizontal components of ground motions from subduction earthquakes using NGA-Subduction data

Earthquake Spectra ◽

10.1177/87552930211027903 ◽

2021 ◽

pp. 875529302110279

Author(s):

Sanaz Rezaeian ◽

Linda Al Atik ◽

Nicolas M Kuehn ◽

Norman Abrahamson ◽

Yousef Bozorgnia ◽

...

Keyword(s):

Ground Motions ◽

Damping Ratio ◽

Spectral Shape ◽

Parametric Models ◽

Scaling Factors ◽

Global Models ◽

Motion Models ◽

Subduction Earthquakes ◽

Crustal Earthquakes ◽

Subduction Zone Earthquakes

This article develops global models of damping scaling factors (DSFs) for subduction zone earthquakes that are functions of the damping ratio, spectral period, earthquake magnitude, and distance. The Next Generation Attenuation for subduction earthquakes (NGA-Sub) project has developed the largest uniformly processed database of recorded ground motions to date from seven subduction regions: Alaska, Cascadia, Central America and Mexico, South America, Japan, Taiwan, and New Zealand. NGA-Sub used this database to develop new ground motion models (GMMs) at a reference 5% damping ratio. We worked with the NGA-Sub project team to develop an extended database that includes pseudo-spectral accelerations (PSA) for 11 damping ratios between 0.5% and 30%. We use this database to develop parametric models of DSF for both interface and intraslab subduction earthquakes that can be used to adjust any subduction GMM from a reference 5% damping ratio to other damping ratios. The DSF is strongly influenced by the response spectral shape and the duration of motion; therefore, in addition to the damping ratio, the median DSF model uses spectral period, magnitude, and distance as surrogate predictor variables to capture the effects of the spectral shape and the duration of motion. We also develop parametric models for the standard deviation of DSF. The models presented in this article are for the RotD50 horizontal component of PSA and are compared with the models for shallow crustal earthquakes in active tectonic regions. Some noticeable differences arise from the considerably longer duration of interface records for very large magnitude events and the enriched high-frequency content of intraslab records, compared with shallow crustal earthquakes. Regional differences are discussed by comparing the proposed global models with the data from each subduction region along with recommendations on the applicability of the models.

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