quantum locking

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Quantum Locking

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Quantum Locking. What is Quantum Locking? . - PowerPoint PPT Presentation

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Page 1: Quantum Locking

Quantum Locking

Page 2: Quantum Locking

Quantum Locking, or Flux pinning, is the phenomenon where a superconductor is pinned in space above a magnet. At higher

temperatures the superconductor allows magnetic flux to enter in quantized packets through points in the magnet known as flux tubes, but at extremely low temperatures these flux tubes are

locked into place to conserve energy causing Quantum Locking

What is Quantum Locking?

Page 3: Quantum Locking

Superconductivity Superconductivity occurs when an

object is cooled to a low enough temperature to allow an electrical current to pass through it with absolutely no resistance . Another effect of superconductors is the repulsion of magnetic fields.

Flux Tubes A flux tube is a generally cylindrical

region of space containing a magnetic field. Flux tubes can easily be created using a superconductor’s characteristics of magnetic repulsion. By placing a superconductor over a magnet, flux tubes are created through the minute cracks in the superconductor for the magnetic flux lines to pass through.

Page 4: Quantum Locking

How does the levitation occur?

Page 5: Quantum Locking

1) The superconductor locks the magnetic flux lines inside to prevent movement and

loss of energy

Page 6: Quantum Locking

2) By locking the flux lines in place, the superconductor lock itself in place in the

magnetic field.

Page 7: Quantum Locking

Facts about Quantum Locking

• A disk that is half a micron thick, with a diameter of three inches, can support over 70,000 times its own weight when placed over a magnetic field of 350 Oe

• That same disk, if made two milimeters thick could support 1,000 kilograms, the weight of a small car.

• In a superconductor three inches in diameter, there exist an estimated 100 billion flux tubes when placed over a magnetic field.

Page 9: Quantum Locking

The uses are limitless.

Page 10: Quantum Locking

Questions?