Quantum Garden display

I saw this morning an interesting quantum demostration display at Aalto University campus in Espoo Finland. There are springs you are allowed to touch to control this display.

Here is closeup of description on the display

More details on the project page http://quantum.garden/

It looks like the large number of LEDs in this display could be propably WS2812 type addressable RGB LEDs that are available as ready made as similar looking ring shaped modules from various sources.


  1. Tomi Engdahl says:

    3 Teensy boards, 228 door stoppers, and 3,648 RGB LEDs simulate a quantum computing problem: http://bit.ly/2DSpOdM

  2. Tomi Engdahl says:


    Coolest thing you’ll see today! Robin Baumgarten’s latest installation uses 228 door springs and 3,648 addressable LEDs to simulate a quantum computing problem.

  3. Tomi Engdahl says:

    Door Springs and Neopixels Demonstrate Quantum Computing Principles

    The idea behind [Robin Baumgarten]’s “Quantum Garden” is
    engaging people through touch, sound, and light. Each of the 228 springs, surrounded by a Neopixel ring, is connected to one of the 12 inputs on an MPR121 capacitive touch sensor. The touch sensors and an accelerometer in the base detect which spring is sproinging and send that information to a pair of Teensies. A PC then runs the simulations that determine how the lights will react. The display is actually capable of some pretty complex responses, including full-on games. But the most interesting modes demonstrate principles of quantum computing, specifically stimulated Raman adiabatic passage (STIRAP)


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