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SUMMARY:The Quantum Operators of Virtual Particles
DTSTART:20230131T160000Z
DTEND:20230131T190000Z
DTSTAMP:20260701T200121Z
UID:7420d56a-172e-498b-a980-30558aff0b9c
SEQUENCE:1
CREATED:20230126T164132Z
DESCRIPTION: Abstract:We show that virtual particles\, despite being unobs
 ervable\, can be described by quantum operators which can be interpreted u
 nder certain conditions as valid quantum states with interesting connectio
 ns to quantum information. For virtual fermions\, we prove that such state
 s can be regarded as 2-qubit thermal states and study their entanglement. 
 For spin-1 virtual bosons and virtual pairs of fermions\, we find them to 
 be associated to 4-qubit operators containing all the details of the inter
 actions. Finally\, we study how renormalization affects these results. The
 se findings represent new connections between quantum field theory\, quant
 um information and quantum thermodynamics.
LAST-MODIFIED:20230126T164132Z
LOCATION:Sala de Seminários do DF\,  Pavilhão de Física\, 2º piso
URL:http://df.vps.tecnico.ulisboa.pt/pt/eventos/the-quantum-operators-of-v
 irtual-particles/
X-ALT-DESC;FMTTYPE=text/html:<p data-block-key="p3px9"> </p><p data-block-
 key="kdga">Abstract:<br/>We show that virtual particles\, despite being un
 observable\, can be described by quantum operators which can be interprete
 d under certain conditions as valid quantum states with interesting connec
 tions to quantum information. <br/><br/>For virtual fermions\, we prove th
 at such states can be regarded as 2-qubit thermal states and study their e
 ntanglement. For spin-1 virtual bosons and virtual pairs of fermions\, we 
 find them to be associated to 4-qubit operators containing all the details
  of the interactions. <br/><br/>Finally\, we study how renormalization aff
 ects these results. These findings represent new connections between quant
 um field theory\, quantum information and quantum thermodynamics.</p>
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