What is Bose-einstein: Definition and 79 Discussions

In condensed matter physics, a Bose–Einstein condensate (BEC) is a state of matter (also called the fifth state of matter) which is typically formed when a gas of bosons at low densities is cooled to temperatures very close to absolute zero (−273.15 °C or −459.67 °F). Under such conditions, a large fraction of bosons occupy the lowest quantum state, at which point microscopic quantum mechanical phenomena, particularly wavefunction interference, become apparent macroscopically. A BEC is formed by cooling a gas of extremely low density (about one-hundred-thousandth (1/100,000) the density of normal air) to ultra-low temperatures.
This state was first predicted, generally, in 1924–1925 by Albert Einstein following and crediting a pioneering paper by Satyendra Nath Bose on the new field now known as quantum statistics.

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  1. K

    Exploring Magnetic Traps: Can They Create Bose-Einstein Condensate?

    Lately I've been wondering how magnetic traps work. So can anyone tell me how they work, How long they can hold atoms and if they can achieave Bose-Einstein Condensate? Also I have been wondering if they could hold several grams of atoms and then create the Bose-Einstein Effect. Can anyone...
  2. P

    What kind of bosons can have Bose-Einstein Condensation?

    I notice that some bosons can exhibit Bose-Einstein condensation while others cannot (photons, phonons). Is it true that the bosons can have BEC only when the total number of particles is conserved? In this case, the chemical potential approaches zero at T_c, and particles begin to cluster...
  3. D

    What are the properties and potential uses of Bose-Einstein Condensate?

    A quick question. I just heard very little about this in a lecture today, so I have a few questions. If I remember correctly my teacher said that when you hit a specific temperature, very low, the atoms in the gascloud, you are trying to cool, will be in the exact same quantum state. So does...
  4. Phrak

    Does the inertia of either a Bose-Einstein or Fermi-Dirac condensate

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  5. N

    Are there any distributions different from Fermi-Dirac and Bose-Einstein distribution

    Please teach me whether it is possible there are any distributions different from Fermi-Dirac and Bose-Einstein distributions.Because the Statistic Theorem only demontrates that integer spin particles can't obey Fermi-Dirac distribution and spin-haft particles can't obey Bose-Einstein distribution.
  6. J

    Bose-Einstein condensates-light stoppers?

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  7. R

    The effect of a Bose-Einstein Condensate on light

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  8. S

    Can the Bose-Einstein Condensate reach 0 K?

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  9. M

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  10. T

    What Do Limiting Probabilities Signify in a Bose-Einstein Urn Model?

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  11. T

    Bose-Einstein Condensation in 2d?

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  12. P

    Bose-Einstein Condensation in 1D and 2D Gases: Possibilities and Applications?

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  13. C

    Is Bose-Einstein Condensation Possible in Two Dimensions?

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  14. C

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  15. Q

    Canonical Bose-Einstein statistics

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  16. M

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  17. M

    What is the Average Energy per Photon at Thermal Equilibrium?

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  18. Pythagorean

    Testing What Background Is Needed to Work with Bose-Einstein Condensates?

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  19. Loren Booda

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  20. DaTario

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  21. T

    Exploring the Possibility of Photon Bose-Einstein Condensates

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  22. J

    About bose-Einstein condensate

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  23. A

    Bose-Einstein Condensates. What is a matter wave ?

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  24. R

    Bose-Einstein Condensate: Electromagnetic & Antigravitic Forces

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  25. A

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  26. P

    What is the role of extreme cold in achieving Bose-Einstein Condensation?

    I grasp the idea. The only thing I don't get, is why do the atoms have to be frozen? How does the lack of heat effect the state of which the atoms are in? And once the state of superfluidity is achieved, why must the liquid not have a viscosity? Paden Roder wanderingand asking aimlessly to...
  27. A

    Attn: chi meson re. explination of bose-Einstein condensation

    Chi Meson offline Joined: Aug 2003 Location: Posts: 40 [1.08 /day] Member #: 1431 This might be jumping the topic, but...Other areas: The proof of Bose-Einstein condensate. Old theory, but refined physics? Isn't this "evolution"?... how is bose einstein condensation explained...
  28. Tyger

    What are some real experiments on Bose-Einstein Condensates?

    A web page with some real information. http://cua.mit.edu/ketterle_group/Research_topics/Popular_papers.htm#Enc_BEC
  29. Tyger

    Are There Natural Bose-Einstein Condensates in the Universe?

    Found this nifty intro the the subject. Justplug Bose-Einstein Condensates into a seaarch engine for lots more. http://www.colorado.edu/physics/2000/bec
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