All-In with Chamath, Jason, Sacks & Friedberg Nobel Prize in Physics Winner: John Martinis on the State of Quantum
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Oct 27, 2025 
Join John Martinis, a Nobel Prize-winning physicist renowned for his groundbreaking work in quantum computing, as he takes listeners on a captivating journey through the world of quantum mechanics. He explains complex concepts like quantum tunneling and the role of superconducting qubits in modern technology. Martinis discusses the competitive landscape of quantum research between the U.S. and China, and reflects on the implications of AI for quantum advancements. Plus, hear his personal reaction to winning the Nobel Prize and his future scientific dreams!
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Macroscopic Quantum Behavior Is Testable
- Anthony Leggett posed the question of whether macroscopic objects can exhibit quantum behavior, prompting experiments on superconducting circuits.
- Electrical circuits operating at microwave frequencies offer favorable parameters to observe macroscopic quantum effects.
1985 Josephson Junction Experiment
- Martinis and colleagues built Josephson-junction resonators and observed discrete energy levels in 1985, demonstrating quantum behavior at macroscopic scales.
- The 1985 Physical Review Letters paper and Scientific American coverage drew significant attention in the field.
Feynman's Talk Sparked A Career Shift
- At a UC Santa Barbara conference John Martinis heard Richard Feynman talk about quantum computation, which inspired him to pursue computing applications.
- The talk convinced him this fundamental question was worth a life's focus despite initial uncertainty.