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VERSION:2.0
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BEGIN:VEVENT
SUMMARY:Towards Quantum Simulation of Bound States Scattering
DTSTART:20230530T143000Z
DTEND:20230530T160000Z
DTSTAMP:20260725T190412Z
UID:b85fd4c2-b89e-458d-a4e5-9142a3c9052f
SEQUENCE:1
CREATED:20230525T092909Z
DESCRIPTION: The last years have seen a rapid development of applications 
 of quantum computationto quantum field theory. The first quantum algorithm
 s for simulation of scattering havebeen proposed in the context of scalar 
 and fermionic theories\, requiring thousands oflogical qubits. These algor
 ithms are not suitable to simulate scattering of incomingbound states\, as
  the initial state preparation relies typically on adiabaticallytransformi
 ng wavepackets of the free theory into wavepackets of the interactingtheor
 y.In this talk\, I will present a strategy to excite wavepackets of the in
 teractingtheory directly from the vacuum of the interacting theory\, allow
 ing for preparation ofstates of composite particles that can be taken as i
 nitial states of a scatteringsimulation. This is the first step towards di
 gital quantum simulation of scattering ofbound states. The approach is bas
 ed on the Haag-Ruelle scattering theory\, whichprovides a way to construct
  creation and annihilation operators of a quantum fieldtheory in a full\, 
 nonperturbative framework. To show that the idea works for quantumcomputat
 ion\, I will describe a quantum algorithm implementing the approach. 
LAST-MODIFIED:20230525T092909Z
LOCATION:Sala de Seminários do DF\,  Pavilhão de Física\, 2º piso
URL:http://df.vps.tecnico.ulisboa.pt/pt/eventos/towards-quantum-simulation
 -of-bound-states-scattering/
X-ALT-DESC;FMTTYPE=text/html:<p data-block-key="7hpaj"> The last years hav
 e seen a rapid development of applications of quantum computationto quantu
 m field theory. The first quantum algorithms for simulation of scattering 
 havebeen proposed in the context of scalar and fermionic theories\, requir
 ing thousands oflogical qubits.<br/><br/> These algorithms are not suitabl
 e to simulate scattering of incomingbound states\, as the initial state pr
 eparation relies typically on adiabaticallytransforming wavepackets of the
  free theory into wavepackets of the interactingtheory.In this talk\, I wi
 ll present a strategy to excite wavepackets of the interactingtheory direc
 tly from the vacuum of the interacting theory\, allowing for preparation o
 fstates of composite particles that can be taken as initial states of a sc
 atteringsimulation. <br/><br/>This is the first step towards digital quant
 um simulation of scattering ofbound states. The approach is based on the H
 aag-Ruelle scattering theory\, whichprovides a way to construct creation a
 nd annihilation operators of a quantum fieldtheory in a full\, nonperturba
 tive framework. To show that the idea works for quantumcomputation\, I wil
 l describe a quantum algorithm implementing the approach. </p>
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