Hardware-efficient neutral atom quantum computing method and device

Abstract

A method for quantum computing using neutral atoms in an array of optical traps, wherein a first internal state serves as qubit ground state |o>, and a second internal state serves as qubit excited state |1>, includes performing a local single-qubit gate operation comprising: locally and selectively illuminating a qubit prepared in a superposition state |s> of qubit ground state |0> and qubit excited state |1> with a qubit addressing laser at a first qubit addressing laser frequency to cause a differential Stark shift for the qubit ground state |0> and the qubit excited state |1>. The method also includes performing a local two-qubit gate operation comprising: locally and selectively illuminating a pair of qubits prepared in the qubit ground state |0> with the qubit addressing laser at a second qubit addressing laser frequency for coupling the pair of qubits to a Rydberg state |r>.