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 October 26, 2017
12:30 PM - 2:00 PM

Speaker: Rafael Alexander (University of New Mexico)

Technical Host: Yigit Subasi

TOPIC: Flexible quantum computation with scalable continuous-variable cluster states

Abstract
Provided they can be made on a large scale with low levels of noise, quantum computers offer impressive speedups over their classical counterparts. Such computations can be implemented using only single-site operations on continuous-variable cluster states -- highly entangled quantum states that can be generated on an unprecedented scale using quantum optics. In this talk, I will introduce highly compact methods for generating universal continuous-variable cluster states which possess a multi-layered graph structure. I will also describe new measurement protocols that leverage the nonstandard graph structure, allowing for more compact and flexible computations. The major bottleneck hindering the use of continuous-variable cluster states is the noise that arises from having limited squeezing resources. We discuss how to treat this noise as an effective amplitude-damping channel in the special case of implementing linear optics gates.