Home – Neutral Atom: The Future of Scalable Quantum Computing

What is Neutral Atom Quantum Computing?

Pasqal’s groundbreaking journey in quantum computing is deeply rooted in the pioneering work of its co-founder, Professor Dr. Alain Aspect, a Nobel laureate in Physics (2022). Renowned for his experiments on quantum entanglement and innovative methods for cooling and manipulating atoms with lasers, Dr. Aspect laid the scientific foundation for neutral atom quantum computing. His research, alongside Dr. Antoine Browaeys’ development of optical tweezers for single atoms, enabled Pasqal to leverage neutral atom technology to build scalable quantum processors.

The Fundamentals of Neutral Atom Technology

Neutral atom quantum computing is emerging as one of the most promising paradigms in the field of quantum computation. Unlike superconducting quantum systems that rely on cryogenically cooled artificial circuits or trapped ion platforms that manipulate charged particles, Pasqal’s technology leverages individual neutral atoms as qubits, utilizing their natural uniformity and stability.

This approach offers unparalleled advantages in scalability, coherence, and reconfigurability, positioning Pasqal at the forefront of quantum innovation. By precisely manipulating neutral atoms with finely tuned laser pulses, Pasqal’s quantum processors aim to enable the execution of complex computations that approach or potentially surpass the capabilities of classical systems in specific domains.

Optics elements inside Pasqal quantum processor

Harnessing individual atoms as qubits for powerful, scalable quantum computation.

How it works

At Pasqal, we use individual neutral Rubidium atoms as our quantum bits. We leverage advanced techniques in atomic physics and laser manipulation to create and control qubits with exceptional precision. The process involves cooling and trapping individual neutral atoms, encoding quantum information in their energy states, and performing operations by precisely manipulating their interactions.

Discover more

Key Elements of Neutral Atom Quantum Processors

laser tweezers for Pasqal Neutral atom quantum processors

Optical Tweezer Arrays

Using finely tuned laser beams, we create an array of optical traps that can hold individual atoms with extraordinary precision. These arrays can be dynamically reconfigured to create various qubit arrangements for different computational tasks.

Rydberg Interactions

When atoms are excited to Rydberg states, they exhibit strong, tunable interactions with neighboring atoms. This interaction serves as the foundation for quantum logic operations and entanglement generation.

Programmable Quantum Registers

Our technology allows us to create large arrays of atoms with programmable geometries, enabling the simulation of complex quantum systems and implementation of quantum algorithms

The Advantages of Neutral Atom Technology

Neutral atom quantum computing offers several key advantages. It excels in scalability, potentially supporting thousands of qubits, and allows for customizable atom arrangements to optimize different algorithms. Unlike some technologies, it operates at room temperature, reducing complexity and cost. Neutral atoms also maintain quantum information for longer periods, reducing errors, and enable efficient interactions between qubits through all-to-all connectivity.

Feature	Advantage	Why It Matters
Natural Uniformity	All atoms of the same element are identical	Consistent qubit properties, reducing calibration complexities
Long Coherence Times	Minimal interaction with environment	Qubits maintain quantum states longer, allowing more complex operations
High Connectivity	Rydberg interactions enable connections between distant qubits	Efficient implementation of complex algorithms with fewer operations
Scalability	Arrays can be expanded to hundreds or thousands of qubits	Path to quantum advantage with larger systems
Room Temperature Control Electronics	Only the atoms themselves need extreme cooling	Simpler infrastructure requirements and operational advantages

Pasqal’s neutral atom approach combines these advantages to create a quantum computing platform that is both powerful and practical.

Pasqal’s Approach to Neutral Atom Quantum Computing

Pasqal’s implementation of neutral atom quantum computing stands out for its innovative hardware architecture, comprehensive software stack, and ambitious roadmap.

Hardware Architecture

Pasqal’s quantum processors use neutral atoms as qubits, trapped and manipulated using laser light. This approach offers several advantages:

Scalability
Room temperature operations
Flexible qubit arrangement

Explore Pasqal QPU

Comprehensive Software stack

Pasqal provides a suite of software tools, enabling flexible programming and seamless access to its quantum processors.

Pulser Studio
Pulser
Pasqal Cloud

Access our Software

Ambitious Product Roadmap

As of 2025, Pasqal already provides quantum processors with over 100 qubits to end users. Development efforst focus on:

Fault Tolerant Quantum Computing
up to 200 qubits by the end of 2026

Check out the roadmap

To learn more about the science behind Pasqal’s neutral atom quantum computing, explore our collection of related scientific publications. These papers provide insights into the foundational principles and technological advancements driving our innovative approach.

Apr 2, 2025