<!DOCTYPE html><html><head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body dir="ltr">
<div class="moz-forward-container"><br>
<style type="text/css" style="display:none;">P {margin-top:0;margin-bottom:0;</style>Hello
everyone,
<div class="elementToProof"><br>
</div>
<div class="elementToProof">We will be having a remote Theory
seminar <b>today at 1pm</b>. Even though it's remote <b>please
join us in F326-327 </b>or on Zoom. Below is the info.</div>
<div class="elementToProof"><br>
</div>
<div class="elementToProof">
<p>Speaker: Iván Mauricio Burbano Aldana (UC Berkeley)</p>
<p><br>
</p>
<p>Zoom: <a class="x_moz-txt-link-freetext moz-txt-link-freetext" href="https://jlab-org.zoomgov.com/j/1617081564?pwd=0Tr7fZACG5vyHvFjgaye73eQpUJ43l.1">
https://jlab-org.zoomgov.com/j/1617081564?pwd=0Tr7fZACG5vyHvFjgaye73eQpUJ43l.1</a></p>
<p><br>
</p>
</div>
<div class="elementToProof">
<div>Title: Real-time Estimators of Scattering Observables</div>
<div><br>
</div>
<div>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>
<div><br>
</div>
<div>Best wishes,<br>
Adam, Joe, and Pia<br>
</div>
</div>
</div>
</body>
</html>