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SUMMARY:Extension of scalar-tensor theories and spatially covariant gravit
 y
DTSTART;VALUE=DATE-TIME:20190630T045000Z
DTEND;VALUE=DATE-TIME:20190630T052000Z
DTSTAMP;VALUE=DATE-TIME:20260517T092543Z
UID:indico-contribution-20@indico.itp.ac.cn
DESCRIPTION:Speakers: 高 显 (中山大学)\nIn order to explain the acce
 lerated expansion of our universe in its early stage and today\, the most 
 popular approach is to introduce a scalar field to drive the inflation or 
 to act as dark energy. This is the so-called scalar-tensor theory of gravi
 ty. In this talk\, we first review the development of the scalar-tensor th
 eories with higher derivatives in the recent years. Then we introduce the 
 idea of constructing gravity theories respecting only the spatial symmetry
 \, which propagate a single scalar degree of freedom and thus correspond t
 o even larger class of healthy scalar-tensor theories with higher derivati
 ves. Finally we discuss the propagation of gravitational waves in our fram
 ework.\n\nhttps://indico.itp.ac.cn/event/1/contributions/20/
LOCATION:新疆乌鲁木齐金谷大酒店 三楼会议室
URL:https://indico.itp.ac.cn/event/1/contributions/20/
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