Ben Nachman (LBNL) “Modeling final state radiation on a quantum computer”

Abstract: 
Particles produced in high energy collisions that are charged under one of the fundamental forces will radiate proportionally to their charge, such as photon radiation from electrons in quantum electrodynamics. At sufficiently high energies, this radiation pattern is enhanced collinear to the initiating particle, resulting in a complex, many-body quantum system. Classical Markov Chain Monte Carlo simulation approaches work well to capture many of the salient features of the shower of radiation, but cannot capture all quantum effects. I will show how quantum algorithms are well-suited for describing the quantum properties of final state radiation. In particular, I will describe a polynomial time quantum final state shower that accurately models the effects of intermediate spin states similar to those present in high energy electroweak showers. The algorithm is explicitly demonstrated for a simplified quantum field theory on a quantum computer.   One of the greatest challenges for current quantum computers is their significant noise.  I will present new techniques for mitigating both readout noise and gate error noise.  Readout errors are equivalent to detector effects in high energy physics (HEP) and I will show how building a bridge between fields can improve quantum computing in general, not only for HEP.  For gate error mitigation, I have proposed a new technique that can achieve a better precision than existing methods with a significantly reduced quantum complexity.   Finally, I will discuss future directions at the interface between quantum computing and high energy physics.  See 1901.08148, 1904.03196, 1910.00129, and 2003.04941 for details.

http://physics.lbl.gov/rpm/index.php/events/

If you are looking to confirm if there is an event, due to room reservation, please go to RPM website for a list of all scheduled talks.

──────────
Troy Cortez is inviting you to a scheduled Zoom meeting.

Join Zoom Meeting
https://lbnl.zoom.us/j/99636650720

Meeting ID: 996 3665 0720
One tap mobile
+16465588656,,99636650720# US (New York)
+16699006833,,99636650720# US (San Jose)

Dial by your location
+1 646 558 8656 US (New York)
+1 669 900 6833 US (San Jose)
+1 253 215 8782 US (Tacoma)
+1 301 715 8592 US (Germantown)
+1 312 626 6799 US (Chicago)
+1 346 248 7799 US (Houston)
Meeting ID: 996 3665 0720
Find your local number: https://lbnl.zoom.us/u/acaVi4S1v4

Join by SIP
99636650720@zoomcrc.com

Join by H.323
162.255.37.11 (US West)
162.255.36.11 (US East)
115.114.131.7 (India Mumbai)
115.114.115.7 (India Hyderabad)
213.19.144.110 (EMEA)
103.122.166.55 (Australia)
64.211.144.160 (Brazil)
69.174.57.160 (Canada)
207.226.132.110 (Japan)
Meeting ID: 996 3665 0720

──────────