Question
What is the Bose-Einstein condensation? Write an expression of number of particles in the excited state (Nex) in terms of Bose-Einstein condensation temperature (Tc), total number of bosons (N) in an assembly and temperature T. Show a plot of distribution of bosons as a function of temperature below and above the Tc.
Answer :
Word Count : 301
__________ ____ __________ ____ _____ __________.
______ __________ _____ ______ _____ ________.
______ _______ ________ ______ ____ ____ ________ ______.
_________ ________ __________ ______ ______ __________ _________ ___ ____ _________.
_______ _______ ________ ___ __________ ________ ____ _______ _______ __________.
__________ ______ _______ _______ ___ ___.
______ ________ _______ ______ ______ ____ ______.
_______ ________ ______ _____ _______ ___ __________ __________ __________ _______ _____.
_______ ________ ____ ______ _____ ____ _________ ____ ___ _____ _________ ____.
____ ____ __________ ________ ________ ____ ___ ____ _______.
_____ ________ ____ _______ ___ ______ ________ __________ ___.
___ _________ _______ _____ __________ ________.
_________ _______ ________ ________ _________ __________ ________ _________ _____ __________.
____ _____ _______ ____ ______ ______ _______.
_______ _____ ___ _____ _____ _____ ______ ____ ____ __________.
__________ ________ _____ _______ __________ __________ _____ ____ ____ ______ ______ _____.
____ __________ ____ ______ _______ ________.
______ _____ _____ ____ ________ ____ ______ _______ _____ ___ ___.
________ ____ __________ _____ ______ ______ ____ ___ _____ ____ __________.
____ ______ ___ _____ _______ ________ ____ _______.
___ _____ _________ _____ ________.
________ _________ _________ ____ ________ _______ _____.
_______ __________ ______.
Skip in 10
Bose-Einstein condensation (BEC) is a phase transition that occurs in a system of non-interacting bosons at very low temperatures, where a macroscopic number of particles occupy the lowest quantum state. At temperatures below a critical temperature (T_c), the bosons "condense" into the ground state, leading to quantum phenomena on a macroscopic scale. For an ideal Bose gas, the total number of particles (N) is given by the sum of particles in the ground state ((N_0)) and excited states ((N_{\rm ex})): [ N = N_0 + N_{\rm ex}. ] Above the condensation temperature (T > T_c), all particles are in
___ _______ ___ ________ _________ ____ _________ ____ _________ ________ _____ ___.__________ ____ __________ ____ _____ __________.
______ __________ _____ ______ _____ ________.
______ _______ ________ ______ ____ ____ ________ ______.
_________ ________ __________ ______ ______ __________ _________ ___ ____ _________.
_______ _______ ________ ___ __________ ________ ____ _______ _______ __________.
__________ ______ _______ _______ ___ ___.
______ ________ _______ ______ ______ ____ ______.
_______ ________ ______ _____ _______ ___ __________ __________ __________ _______ _____.
_______ ________ ____ ______ _____ ____ _________ ____ ___ _____ _________ ____.
____ ____ __________ ________ ________ ____ ___ ____ _______.
_____ ________ ____ _______ ___ ______ ________ __________ ___.
___ _________ _______ _____ __________ ________.
_________ _______ ________ ________ _________ __________ ________ _________ _____ __________.
____ _____ _______ ____ ______ ______ _______.
_______ _____ ___ _____ _____ _____ ______ ____ ____ __________.
__________ ________ _____ _______ __________ __________ _____ ____ ____ ______ ______ _____.
____ __________ ____ ______ _______ ________.
______ _____ _____ ____ ________ ____ ______ _______ _____ ___ ___.
________ ____ __________ _____ ______ ______ ____ ___ _____ ____ __________.
____ ______ ___ _____ _______ ________ ____ _______.
___ _____ _________ _____ ________.
________ _________ _________ ____ ________ _______ _____.
_______ __________ ______.
IGNOU ACADEMY
Your IGNOU journey, made easier.
- Solved Assignments
- Study Notes
- Guess Papers
- Question Papers
Continue Reading — It's Free
Sign in with Google to unlock more of this answer.
✓ Free access
✓ Unlock up to 60% of the answer
✓ No payment required
✓ Unlock up to 60% of the answer
✓ No payment required
Quick Google sign-in. No separate registration form.