Jump to navigation Jump to search. Portuguese[edit]. Noun[edit]. condensados de Bose-Einstein m. plural of condensado de Bose-Einstein. Retrieved from. Request PDF on ResearchGate | Dinámica de vórtices en un condensado de Bose-Einstein | We numerically solve the Gross-Pitaevskii equation for a. Request PDF on ResearchGate | On Jan 1, , M Casas and others published Los condensados de Bose-Einstein: las quinta y sexta fase de la materia.

Author: Tejas Vijinn
Country: Croatia
Language: English (Spanish)
Genre: Business
Published (Last): 4 August 2006
Pages: 472
PDF File Size: 10.20 Mb
ePub File Size: 2.69 Mb
ISBN: 298-8-38184-386-1
Downloads: 97887
Price: Free* [*Free Regsitration Required]
Uploader: Faebei

For clusters of atoms einsstein seem to exhibit some of the properties of elemental atoms, see Superatom. Retrieved 23 March There are different Fortran and C programs for its solution for contact interaction [14] [15] and long-range dipolar interaction [16] which can be freely used.

Bose-Einstein condensate | physics |

Their instrumentation now had better control so they used naturally attracting atoms of rubidium having negative atom—atom scattering length. Research was finally successful in hydrogen with the aid of the newly developed method of ‘evaporative cooling’. The reversible flip from attraction to repulsion stems from quantum interference among wave-like condensate atoms. This graph served as the cover design for the textbook Thermal Physics by Ralph Dinstein. To exhibit Bose—Einstein condensation, the fermions must “pair up” to form bosonic compound particles e.

Retrieved 26 January In contrast, an unlimited number of bosons can have the same energy state and share a single quantum state. These manipulations hold promise for new types of light-based telecommunicationsoptical storage of data, and quantum computingthough the low-temperature requirements of BECs offer practical difficulties.


Bose-Einstein condensate

Superfluid helium has many unusual properties, including zero viscosity the ability to flow without dissipating energy and the existence of quantized vortices. However, it is clear that in a general case the behaviour of Bose—Einstein condensate can be described by coupled evolution equations for condensate density, superfluid velocity and distribution function of elementary excitations. As a consequence, the atoms lose their individual identities, and their quantum mechanical wavelike properties become dominant.

This page was last edited on 24 Decemberat Learn More in these related Britannica articles: Beyond the Gross-Pitaevskii approximation”. Closely related to the creation of vortices in BECs is the generation of so-called dark solitons in one-dimensional BECs.

condensado de Bose-Einstein – Wiktionary

The vortex created will be a quantum vortex. BEC theory traces back towhen Bose considered how groups of photons behave. Binodal Compressed fluid Cooling curve Equation of state Leidenfrost effect Macroscopic quantum phenomena Mpemba effect Order and disorder physics Spinodal Superconductivity Superheated vapor Superheating Thermo-dielectric effect.

September Learn how and when to remove this template message. If you prefer to suggest your own revision of the article, you can go to edit mode requires login. Compared to more commonly encountered states of matter, Bose—Einstein condensates are extremely fragile.

The Harvard University Gazette. Albert Einstein Condensed matter physics Codensados matter Phases of matter. Superfluid helium-4 is a liquid rather than a gas, which means that the interactions between the atoms are relatively strong; the original theory of Bose—Einstein condensation must be heavily modified in order to describe it.

The examples where this could happen are the Bose—Fermi composite condensates, [18] [19] [20] [21] effectively lower-dimensional condensates, [22] and dense condensates and superfluid clusters and droplets. The first molecular condensates were created in November by the groups of Rudolf Grimm at the University of InnsbruckDeborah S. This form of matter was predicted in by Albert Einstein on the basis of the quantum formulations of the Indian physicist Satyendra Nath Bose.


In other projects Wikimedia Commons. Bose—Einstein condensates composed of a wide range of isotopes have been produced. Explicit use of et al.

Although solitons carry no charge and are thus prone to decay, relatively long-lived dark solitons have been produced and studied extensively. Internet URLs are the best. Magnons, electron spin waves, can be controlled by a magnetic field.

InPyotr KapitsaJohn Allen and Don Misener discovered that helium-4 became a new kind of fluid, now known as a superfluidat temperatures less than 2. MagnonsExcitonsand Polaritons have integer spin which means they are bosons that can form condensates. The notion is easily generalized.

Gravity-based detection of a point-mass moving in a static background”. Einetein process of creation of molecular Bose condensate during the sweep of the magnetic field throughout the Eihstein resonance, as well as the reverse process, are described by the exactly solvable model that can explain many experimental observations. This formula is derived from finding the gas degeneracy in the Bose gas using Bose—Einstein statistics.

This article was written by admin