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Physics Colloquium - W.J. Carr Lecture
Tuesday, February 6, 2018
4:00 p.m.-5:00 p.m.
Toll Physics Bldg., #1412
For More Information:
Anne Suplee
301 405 5944

Robert Schoelkopf
Yale University

Title: The Prospects for Scalable Quantum Computing with Superconducting Circuits 

Abstract: Dramatic progress has been made in the last decade and a half towards realizing solid-state systems for quantum information processing with superconducting quantum circuits. Artificial atoms (or qubits) based on Josephson junctions have improved their coherence times more than a million-fold, have been entangled, and used to perform simple quantum algorithms. The next challenge for the field is demonstrating quantum error correction that actually improves the lifetimes, a necessary step for building more complex systems. At Yale we have been pursuing a hardware-efficient approach for error correction, that relies on encoding information in a bosonic oscillator, the so-called “cat codes.” With this approach, we have applied real-time measurements and feedback to achieve the first extension of the lifetime of a quantum bit through error correction. For scaling, an attractive approach is the modular architecture, in which small quantum processors are networked together into a larger whole. I will present a realization of a gate between logical qubits. This is the first implementation of a teleported C-NOT gate, which is a key building block for the modular approach. 

This Event is For: Graduate • Undergraduate • Faculty

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