Quantum Initiative: Quantum Lunch

The Quantum Lunch is regularly held on Thursdays in the Theoretical Division Conference Room, TA-3, Building 123, Room 121.

The organizing committee includes Malcolm Boshier (P-21), Lukasz Cincio (T-4), Diego Dalvit (T-4), Changhyun Ryu (P-21) , Nikolai Sinitsyn (T-4), Rolando Somma (T-4), Yigit Subasi (T-4), Christopher Ticknor (T-1), and Wojciech Zurek (T-4).

For more information, or to nominate a speaker, contact Yigit Subasi or Lukasz Cincio.

To add your name to the Quantum Lunch email list, contact Kacy Hopwood.

Thursday, April 19, 2018
12:30 PM - 2:00 PM

Speaker: Lucas Brady (UCSB)

Technical Host: Lukasz Cincio

TOPIC: Non- and Near-Adiabatic Quantum Evolutions

Abstract
Quantum annealing is a powerful tool for solving classical optimization problems. One large class of easily implemented annealing algorithms use so called stoquastic Hamiltonians (Hamiltonians with no sign-problem), and recently there has been much debate over how such stoquastic Hamiltonians can achieve quantum advantage over classical computing. One potential avenue for achieving quantum speedup is to run these annealing algorithms faster than the adiabatic theorem recommends. I present two such cases of non-adiabatic evolution in the context of multi-qubit barrier tunneling, looking for potential pathways toward non-adiabatic improvement of the algorithms.