We use a spatial light modulator to generate two-dimensional optical tweezer arrays and trap single atoms. Qubits are encoded in hyperfine atomic states. Single qubit gates are realized by microwave or laser Raman transition. Two qubit gates are realized by laser-controlled Rydberg dipolar interactions. Quantum algorithm is realized by using mobile tweezers to transport atoms to Raman and Rydberg laser interaction zones to conduct the quantum circuit of one- and two-qubit gate sets. 

Because atoms can be transported by mobile tweezers, atom-based quantum processor has the advantage of high connectivity to entangle arbitrary two qubits. It is also relatively easier to achieve a high qubit number. We can achieve about 300 qubits in our system. Because qubits can be prepared in arbitrary two-dimensional geometry, this system can be used as an analog quantum simulator to study quantum many-body spin models or adiabatic quantum computing problem.

Atom-based quantum processor can be used to solve the graph combinational optimization problem, e. g. it can be applied to finding the most economical solution of electric vehicle stations or public bicycle stations problem. It can be used in quantum machine learning problem, such as the identification of toxic molecules or the prediction of timeseries.