Physics Colloquium: Robert Schoelkopf
âEntanglement and Quantum Algorithms with Superconducting Circuitsâ?
By using the unique properties of quantum physics, such as entanglement and superposition, quantum computers are predicted to be vastly more powerful than their classical counterparts for certain tasks. While some technologies, such as NMR and trapped ions, have succeeded in making and manipulating a handful of quantum bits (qubits), they look quite different from a conventional computer, and there are many obstacles to building large-scale processors. At Yale, we use superconducting circuits to make macroscopic, solid-state qubits which are controlled and measured entirely by a sequence of electronic pulses on wires. These devices have advanced to the point where we can generate and detect highly-entangled states, and perform universal quantum gates. I will describe recent experiments showing the operation of Groverâs search algorithm, and measurements of the violation of a Mermin inequality for a three-qubit entangled GHZ state.
Location: Jadwin A10
Date/Time: 10/20/11 at 4:30 pm - 10/20/11 at 6:00 pm
Category: Physics Colloquium