Chapter

The Potential of Josephson Circuits.
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34:39 - 40:17 (05:37)

This episode discusses the potential of Josephson circuits, including their ability to process information and sense weak magnetic fields, and why they haven't yet displaced silicon microelectronics in conventional digital computing.

Clips
The speed of flux ons, which are quantized packets of current that can be added to a loop, is crucial in understanding how they propagate.
34:39 - 35:44 (01:04)
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Flux ons
Summary

The speed of flux ons, which are quantized packets of current that can be added to a loop, is crucial in understanding how they propagate. These pulses of current can travel very close to the speed of light, at around one-third of the speed of light.

Chapter
The Potential of Josephson Circuits.
Episode
#225 – Jeffrey Shainline: Neuromorphic Computing and Optoelectronic Intelligence
Podcast
Lex Fridman Podcast
Physicist Jonilyn Yoder explains the reasons Josephson circuits have not replaced silicon microelectronics in conventional digital computing despite being faster, and how the physical limitations of the circuits make them almost mundane for practical purposes.
35:44 - 38:13 (02:29)
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Superconducting Computing
Summary

Physicist Jonilyn Yoder explains the reasons Josephson circuits have not replaced silicon microelectronics in conventional digital computing despite being faster, and how the physical limitations of the circuits make them almost mundane for practical purposes.

Chapter
The Potential of Josephson Circuits.
Episode
#225 – Jeffrey Shainline: Neuromorphic Computing and Optoelectronic Intelligence
Podcast
Lex Fridman Podcast
The energy demands of cryostats needed for cooling supercomputers are impractical for cell phones, but necessary for large computing systems such as servers.
38:13 - 40:17 (02:03)
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Supercomputers
Summary

The energy demands of cryostats needed for cooling supercomputers are impractical for cell phones, but necessary for large computing systems such as servers. The contrast between cell phone and supercomputer cooling is significant due to the size and energy consumption of the systems.

Chapter
The Potential of Josephson Circuits.
Episode
#225 – Jeffrey Shainline: Neuromorphic Computing and Optoelectronic Intelligence
Podcast
Lex Fridman Podcast