The paper begins with a brief account of classical theory of radiation and its failure to explain black body radiation.It is followed by the introduction of Quantum Theory of radiation by Max Planck.The dual nature of matter by de Broglie has been extensively dealt with.The uncertainty principle of Heisenberg has been critically discussed by many eminent authors who finally concluded it as one of the unavoidable mysteries of nature.As a picture speaks thousand words and as face is the index of the mind, the author has added pictures of eminent physicists at appropriate places.The subject matter of the paper will form a good text for any graduate students of Physics.The paper begins with a brief account of classical theory of radiation and its failure to explain black body radiation.It is followed by the introduction of Quantum Theory of radiation by Max Planck.The dual nature of matter by de Broglie has been extensively dealt with.The uncertainty principle of Heisenberg has been critically discussed by many eminent authors who finally concluded it as one of the unavoidable mysteries of nature.As a picture speaks thousand words and as face is the index of the mind, the author has added pictures of eminent physicists at appropriate places.The subject matter of the paper will form a good text for any graduate students of Physics.

IARJSETDec 30, 20172 citations

Particles and Waves and the Uncertainty Principle

Ajoy Kumar Ghatak, S. Lokanathan

Springer eBooksJan 1, 20040 citations

New Quantum Spin Perspective, Matter Waves and Uncertainty Principle

Rakshit P. Vyas

New quantum spin perspective redefines notion of quantum spin and reduced Planck c onstant h. Other consequences of this perspective are well-known. Here I propose smooth scale transition of quantum domain using auto-correct orauto-balance mechanism of this perspective. Equilibrium governs nature. All universal constants and equations work just to contribute to maintain equilibrium of cosmos. Relation between elementary quantum of action (¯h) and new quantum spin perspective is also established. why matter wave works the way it works? and why simultaneous measurement of two main pair of canonical conjugates ( x and p and E and t) are not possible in nature? are also explained via this perspective. Cause of uncertainty principle of quantum physics is also comprehended. De Broglie hypothesis and uncertainty principle emerge out of novel formula of h.New quantum spin perspective redefines notion of quantum spin and reduced Planck c onstant h. Other consequences of this perspective are well-known. Here I propose smooth scale transition of quantum domain using auto-correct orauto-balance mechanism of this perspective. Equilibrium governs nature. All universal constants and equations work just to contribute to maintain equilibrium of cosmos. Relation between elementary quantum of action (¯h) and new quantum spin perspective is also established. why matter wave works the way it works? and why simultaneous measurement of two main pair of canonical conjugates ( x and p and E and t) are not possible in nature? are also explained via this perspective. Cause of uncertainty principle of quantum physics is also comprehended. De Broglie hypothesis and uncertainty principle emerge out of novel formula of h.

Mar 18, 20260 citations

Experimental verification of the Heisenberg uncertainty principle for fullerene molecules

Olaf Nairz, Markus Arndt, Anton Zeilinger

The Heisenberg uncertainty principle for material objects is an essential corner stone of quantum mechanics and clearly visualizes the wave nature of matter. Here, we report a demonstration of the Heisenberg uncertainty principle for the fullerene molecule ${\mathrm{C}}_{70}$ at a temperature of 900 K. We do this by showing the increase in molecular momentum spread after passage through a narrow slit with a variable width down to 70 nm. We find good quantitative agreement with the theoretical expectation.The Heisenberg uncertainty principle for material objects is an essential corner stone of quantum mechanics and clearly visualizes the wave nature of matter. Here, we report a demonstration of the Heisenberg uncertainty principle for the fullerene molecule ${\mathrm{C}}_{70}$ at a temperature of 900 K. We do this by showing the increase in molecular momentum spread after passage through a narrow slit with a variable width down to 70 nm. We find good quantitative agreement with the theoretical expectation.

arXiv:quant-ph/0105061Physical Review AFeb 5, 200280 citations

A New View on the Uncertainty Principle

Jan Hilgevoord, Jos Uffink

NATO ASI series. Series B : PhysicsJan 1, 199021 citations

{\mathrm{C}}_{70}

at a temperature of 900 K. We do this by showing the increase in molecular momentum spread after passage through a narrow slit with a variable width down to 70 nm. We find good quantitative agreement with the theoretical expectation.