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VERSION:2.0
PRODID:-//linuxsoftware.nz//NONSGML Joyous v1.4//EN
BEGIN:VEVENT
SUMMARY:Electrically charged hyperboloidal evolution
DTSTART:20250623T140000Z
DTEND:20250623T160000Z
DTSTAMP:20260417T131621Z
UID:98c078e5-b440-4af9-8e5e-d77b6d31ce7c
SEQUENCE:2
CREATED:20250618T140559Z
DESCRIPTION:Password: 455600We present the Einstein-Maxwell-Klein-Gordon 
 system in hyperboloidal slices\, a recent formulation for extracting signa
 ls at future null infinity. As far as we know\, this is the first time thi
 s setup is evolved with a common formulation like BSSN/Z4. Using hyperbolo
 idal slices\, contrary to other recent methods like Cauchy-Characteristic 
 Matching\, we can continuously reach future null infinity. With this syste
 m\, we simulate how a charged scalar field behaves in flat spacetime and n
 ear a charged black hole. We are further able to see the scalar field&#x27
 \;s quasi-normal modes and analyze the late-time power-law tail decays. Bo
 th phenomena were tested to see how they change with the electromagnetic c
 oupling between the black hole and the charged scalar field. A comparison 
 of previously studied analytical results to our simulations is shown. We a
 lso showcase the collapse of the charged scalar field into a Reissner-Nör
 dstrom black hole.
LAST-MODIFIED:20250618T140611Z
LOCATION:Sala P3 (Piso 1 do Pavilhão de Matemática) do IST/Online
URL:http://df.vps.tecnico.ulisboa.pt/pt/eventos/electrically-charged-hyper
 boloidal-evolution/
X-ALT-DESC;FMTTYPE=text/html:<p data-block-key="965gb">Password: 455600</
 p><p data-block-key="fqtr5"></p><p data-block-key="90aci">We present the E
 instein-Maxwell-Klein-Gordon system in hyperboloidal slices\, a recent for
 mulation for extracting signals at future null infinity. As far as we know
 \, this is the first time this setup is evolved with a common formulation 
 like BSSN/Z4. Using hyperboloidal slices\, contrary to other recent method
 s like Cauchy-Characteristic Matching\, we can continuously reach future n
 ull infinity.<br/><br/> With this system\, we simulate how a charged scala
 r field behaves in flat spacetime and near a charged black hole. We are fu
 rther able to see the scalar field&#x27\;s quasi-normal modes and analyze 
 the late-time power-law tail decays.<br/><br/> Both phenomena were tested 
 to see how they change with the electromagnetic coupling between the black
  hole and the charged scalar field. A comparison of previously studied ana
 lytical results to our simulations is shown. We also showcase the collapse
  of the charged scalar field into a Reissner-Nördstrom black hole.</p>
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