引力波与高频引力波探测.ppt

引力波与高频引力波探测李芳昱重庆大学物理系China-icDetectionSchemetoHigh-FrequencyGravitationalWavesChallengeandOpportunityOUTLINE2BackgroundClassificationofgravitationalwavefrequencybands.(1)ν~1Hz-104Hz,thedetectingregionbygroundlaserinterferometergravitationalwaveobservatory,suchasVIRGO,LIGO,etc.(2)ν~100Hz-103Hz,thedetectingregionbytheresonantmassdetectors,suchasWeberBar.(3)ν~10-4Hz-1Hz,thedetectingregionbyLaserInterferometerSpaceAntenna,suchasLISA.(4)ν~10-6Hz-10-3Hz,thedetectingregionbyASTROD.(5)ν~107Hz-109Hz,icmicrowavecavityorcircularwaveguide.(6)ν~108Hz-1011Hz,-FrequencyGravitationalWaves(HFGWs)?HighFrequencyGravityWaves(HFGWs)aregravitationalwaves(whichdifferfromhydrodynamicgravitywaves)thathavefrequenciesof100kHzto100MHz(HawkingandIsrael1979).Astheirfrequencyincreases,veryhigh-frequencygravitationalwaves(VHFGWs)andultrahigh-frequencygravitationalwaves(UHFGWs)+GHz,“fabric”“fabric,”asEinsteindescribesit,iscalledthe“space-timecontinuum”andisfour-:forexample,(1)east-west(2)north-south)(3)updown,butalsoincludesthedimensionof(4)-FrequencyGravitationalWavesPoincaré,firstmentionofGWs,,lecturepresentedattheLockheedAstrodynamicsResearchCenterinBel-Air,California,USA,firstmentionofHFGWs,,,relicHFGWsfromBigBang&GASER,,,,,nucleargeneration,,detectionandlaboratoryHFGWgeneration,,,