Coleman Collins, Director of Product at IonQ, joins Thinking on Paper to explain how trapped-ion quantum computers work and why IonQ believes they offer a credible path towards useful quantum computing.

IonQ builds its systems using individual atoms held in place and controlled with lasers. This differs from the superconducting, neutral-atom, photonic and topological approaches being pursued by companies including IBM, Google, Microsoft and D-Wave.

In this episode, Coleman discusses how these competing quantum-computing architectures should be evaluated and why headline qubit counts reveal little about a machine’s practical performance.

We cover:

• How trapped-ion quantum computing works

• Why fidelity, connectivity and control matter more than raw qubit counts

• What IonQ means by “algorithmic qubits”

• How lasers are used to control and connect trapped-ion qubits

• The technical criteria required for a viable quantum computer

• When quantum computers could deliver a practical advantage

• Whether quantum computing could eventually threaten modern cryptography

• How IonQ’s approach compares with superconducting and topological quantum computing

• What investors misunderstand about quantum-computing performance

• How developers can begin working with quantum systems today

We also examine Microsoft’s Majorana-based strategy, the limitations of current quantum hardware and the difference between measurable technical progress and corporate claims.

This is a practical discussion about IonQ, trapped-ion quantum computing and the race to build commercially useful quantum computers.

Please enjoy the show.

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Chapters:

(00:00) Introduction to Quantum Computing and IonQ

(02:17) Understanding Trapped Ion Quantum Computing

(04:57) DiVincenzo's 5-Step Criteria for Quantum Computers

(07:31) The Natural Aspect of Quantum Computing

(10:01) Algorithmic Qubits vs Physical Qubits

(12:49) Achieving Quantum Advantage

(15:04) Investment Trends in Quantum Computing

(17:44) The Role of Education in Quantum Investment

(20:40) Hot Buttons

(25:57) Topological Quantum

(30:47) Microsoft's Majorana Quantum Chip

(34:09) Engaging Developers in Quantum

(36:59) Hybrid Quantum Computing and Integration

(38:55) The Quantum Promised Land

(41:19) Can Quantum Hack Bitcoin?

(45:09) Could Quantum Currency Exist?

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