Planck's constant measurement by Landauer quantization for students laboratories
Desislav S. Damyanov, Iliana N. Pavlova, Simona I. Ilieva, Vassil N., Gourev, Vasil G. Yordanov, and Todor M. Mishonov
TL;DR
This paper presents an accessible, low-cost experimental setup for students to measure Planck's constant using Landauer quantization of conductance between gold wires, suitable for educational laboratories.
Contribution
It introduces a simple, inexpensive, and quick-to-assemble experiment for measuring Planck's constant based on Landauer quantization principles.
Findings
Cost less than $30 to build
Setup can be assembled in two weeks
Requires only an oscilloscope
Abstract
A simple experimental setup for measuring the Planck's constant, using Landauer quantization of the conductance between touching gold wires, is described. It consists of two gold wires with thickness of 0.5 mm and 1.5 cm length, and an operational amplifier. The setup costs less than $30 and can be realized in every teaching laboratory in two weeks. The usage of oscilloscope is required.
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