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VERSION:2.0
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BEGIN:VEVENT
SUMMARY:Electrically charged hyperboloidal evolution
DTSTART:20250623T140000Z
DTEND:20250623T160000Z
DTSTAMP:20260417T201524Z
UID:98c078e5-b440-4af9-8e5e-d77b6d31ce7c
SEQUENCE:1
CREATED:20250618T140550Z
DESCRIPTION:  Password: 455600  We present the Einstein-Maxwell-Klein-Go
 rdon system in hyperboloidal slices\, a recent formulation for extracting 
 signals at future null infinity. As far as we know\, this is the first tim
 e this setup is evolved with a common formulation like BSSN/Z4. Using hype
 rboloidal slices\, contrary to other recent methods like Cauchy-Characteri
 stic Matching\, we can continuously reach future null infinity. With this 
 system\, we simulate how a charged scalar field behaves in flat spacetime 
 and near 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 decay
 s. Both phenomena were tested to see how they change with the electromagne
 tic coupling between the black hole and the charged scalar field. A compar
 ison of previously studied analytical results to our simulations is shown.
  We also showcase the collapse of the charged scalar field into a Reissner
 -Nördstrom black hole.
LAST-MODIFIED:20250618T140550Z
LOCATION:Sala P3 (Piso 1 do Pavilhão de Matemática) do IST/Online
URL:http://df.vps.tecnico.ulisboa.pt/en/events/electrically-charged-hyperb
 oloidal-evolution/
X-ALT-DESC;FMTTYPE=text/html:<p data-block-key="965gb">  Password: 45560
 0 </p><p data-block-key="fqtr5"> </p><p data-block-key="90aci">We present 
 the Einstein-Maxwell-Klein-Gordon system in hyperboloidal slices\, a recen
 t formulation for extracting signals at future null infinity. As far as we
  know\, this is the first time this setup is evolved with a common formula
 tion like BSSN/Z4. Using hyperboloidal slices\, contrary to other recent m
 ethods like Cauchy-Characteristic Matching\, we can continuously reach fut
 ure null infinity. <br/><br/>With this system\, we simulate how a charged 
 scalar field behaves in flat spacetime and near a charged black hole. We a
 re further able to see the scalar field&#x27\;s quasi-normal modes and ana
 lyze the late-time power-law tail decays. <br/><br/>Both phenomena were te
 sted to see how they change with the electromagnetic coupling between the 
 black hole and the charged scalar field. A comparison of previously studie
 d analytical results to our simulations is shown. We also showcase the col
 lapse of the charged scalar field into a Reissner-Nördstrom black hole.</
 p>
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