⚛️ Atoms as Quantum Bits
Discover how individual atoms trapped in light become programmable quantum processors
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Photonic Quantum Computing
Introduction to Neutral Atom Qubits
Neutral atom quantum computers use laser-cooled atoms trapped in arrays of focused laser beams called optical tweezers. Individual atoms serve as qubits, with gate operations performed using highly-excited Rydberg states that enable strong atom-atom interactions.
1000+
Qubits (Atom)
>1 s
Coherence
~μK
Temperature
Why Neutral Atoms?
🔧
Programmable Geometry
Arbitrary 2D/3D atom arrangements
📊
High Qubit Count
Hundreds to thousands of qubits
⚛️
Identical Qubits
Atoms are perfectly identical
🔗
Long-Range Gates
Rydberg blockade enables multi-qubit ops
Key Concepts
Optical Tweezers
Tightly focused laser beams that trap individual atoms using AC Stark shift
Rydberg States
Highly excited atomic states with enormous interaction radius (~10 μm)
Rydberg Blockade
Energy shift prevents simultaneous excitation of nearby atoms—enables gates
MOT Loading
Magneto-optical trap cools and collects atoms before array assembly