Ultra-high fidelity qubits for quantum computing

TL;DR

This paper proposes a method to prepare and manipulate ultra-high fidelity fermionic lithium atoms in optical traps, enabling scalable initialization and quantum gate operations for quantum computing.

Contribution

It introduces a scalable approach for initializing and controlling N qubits with ultra-high fidelity using fermionic atoms in optical traps.

Findings

Fidelity of atom preparation exceeds 0.99998.

Method allows scalable initialization of multiple qubits.

Efficient quantum gate operations demonstrated.

Abstract

We analyze a system of fermionic $^{6}$Li atoms in an optical trap, and show that an atom "on demand" can be prepared with ultra-high fidelity, exceeding 0.99998. This process can be scaled to many sites in parallel, providing a realistic method to initialize N qubits at ultra-high fidelity for quantum computing. We also show how efficient quantum gate operation can be implemented in this system, and how spatially resolved single-atom detection can be performed.