Demonstration and simulation of a Rydberg-blockade quantum gate and entanglement Abstract: Rydberg atoms are promising candidates for quantum computing and quantum information experiments due to their strong, long-range and controllable interactions. In this talk, I will first present our recent experimental work on a Rydberg blockade two-qubit quantum CNOT gate and deterministic entanglement between two individually addressed neutral atoms. The gate and entanglement fidelity results are in good agreement with Monte Carlo simulations of a master equation for the gate dynamics with all known sources of technical errors. In the second part of my talk, I will talk about our numerical simulations of quantum process tomography to find the intrinsic fidelity, neglecting technical errors, of a Rydberg blockade controlled phase gate. Our analysis shows that the intrinsic gate error from simulated quantum process tomography can be under 0.002 for specific states of Rb or Cs atoms. Biography: Dr. Zhang is a Postdoctoral Researhc Associate in Department of Physics at Univesity of Wisconsin Madison. He obtained his PhD in Physics from Univesity of Maryland, College Park. His research interests include Atomic, molecular and optical physics, ultracold neutral plasmas, quantum information, quantum simulation and quantum optics with atoms. |