Time correlators from deferred measurements
نویسندگان
چکیده
منابع مشابه
Unequal-time correlators for cosmology
Measurements of the power spectrum from large-scale structure surveys have, to date, assumed an equal-time approximation, where the full cross-correlation power spectrum of the matter density field evaluated at different times (or distances) has been approximated either by the power spectrum at a fixed time or in an improved fashion, by a geometric mean Pðk; r1; r2Þ 1⁄4 1⁄2Pðk; r1ÞPðk; r2Þ 1=2....
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2016
ISSN: 2469-9950,2469-9969
DOI: 10.1103/physrevb.93.045308