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<div class="elementToProof">Hello everyone,</div>
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<div class="elementToProof">We will be having a seminar Monday by Ivan Mauricio Burbano Aldana<span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"> </span>(UC Berkeley)
at 1pm in F326-327</div>
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Title: Real-time Estimators of Scattering Observables</div>
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Abstract: The real-time correlators of quantum field theories can be directly probed through new approaches to simulation, such as quantum computing and tensor networks. This provides a new framework for computing scattering observables in lattice formulations
of strongly interacting theories, such as lattice quantum chromodynamics. In this talk, we will go over the proof given in arXiv: 2506.06511, showing that the proposal of Real-time Estimators of Scattering Observables is universally applicable to all scattering
observables of gapped quantum field theories. All finite-volume errors are exponentially suppressed, and the rate of this suppression is controlled by the regulator considered, namely, a displacement of the spectrum of the theory into the complex plane. A
partial restoration of Lorentz symmetry by averaging over different boosts gives an additional suppression of finite volume errors. Our results also apply to the simulation of wavepacket scattering, where a similar averaging is performed to construct the wavepackets
that regulate the finite volume effects. We also comment on potential applications of our results to traditional computational schemes.</div>
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Best, </div>
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Joe</div>
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<span style="background-color: rgb(255, 255, 255);">--</span></div>
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Joe Karpie</div>
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Pronouns: He/His/Him</div>
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Postdoctoral Fellow</div>
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Theoretical and Computational Physics Center</div>
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Jefferson Lab</div>
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