Different versions of the uncertainty principle

Level: Graduate
Thread starter touqra
Start date Jan 2, 2008
Tags

Principle Uncertainty Uncertainty principle

Join the discussion

Registration is free. Start your own thread to ask a follow-up.

1 reply · 2K views

touqra

Thread starter
Jan 2, 2008

I have seen different versions of the uncertainty principle. Which is the correct one?

[tex]\Delta x \Delta p >= h[/tex]

[tex]\Delta x \Delta p >= \frac{\hbar}{2}[/tex]

Last edited by a moderator: Mar 7, 2013

Physics news on Phys.org

Higher-dimensional black holes hide an exact symmetry in their ringing, and string-inspired gravity breaks it
Picosecond pulses push superconductors beyond their critical-current limit
Vertical quantum sensor could reveal nanoscale magnetic patterns in quantum materials

Discussion

Bright

Jan 2, 2008

Second one is correct.

sidebar

Different versions of the uncertainty principle

Discussion

Similar threads

Undergrad Necessary conditions for the uncertainty principle

Undergrad Is the uncertainty principle applicable to single slit diffraction?

Undergrad Heisenberg uncertainty principle and the canonical momentum operator

Undergrad What does uncertainty mean in Heisenberg's uncertainty principle?

Graduate Angular momentum uncertainty principle and the particle on a ring

Undergrad Heisenberg Uncertainty Principle and macroscopic objects

Undergrad Possible paradox in the uncertainty principle?

High School Is the Heisenberg Uncertainty Principle a result of measurement inadequacies?

Undergrad Does the uncertainty principle explain high energy density near the big bang?

Undergrad Entropic effects of the Uncertainty Principle?