how accumulate and isolate vast numbers of exotic atoms for further reaserch
- From: RustyJames <extremesoundandlight@xxxxxxxxx>
- Date: Mon, 26 Jan 2009 19:45:37 -0800 (PST)
Some of the kinetic energy in the collision of subatomic particles
goes into creating new particles. It’s not possible, however, to
collect these newly created particles and assemble them into atoms or
Molecules that are bigger (less microscopic) structures that we
associate with 'matter' in our daily life I mean, but I think their
is
a way if you use magnetic trapping, it takes a huge amount of energy
to create matter in this way. This has become a platform technology
of atomic physics. Laser cooling combined with specially arranged
magnetic fields—a so-called magneto-optical trap (MOT)—has enabled
the
creation of Bose-Einstein condensates, the capture of neutral atoms
for experiments in atom construction and manipulation. The typical
MOT
uses a combination of six tuned laser beams converging on a point
that
is in a low magnetic field but surrounded by stronger fields.
Originally, the lasers were tuned near a strong natural energy
oscillation or resonance in the atom, a condition that provides
efficient cooling but to only moderately low temperatures. In the new
work, the research team instead used much gentler forces applied
through a very weak resonance in order to bring magnetic atoms to
within a few millionths of a degree of absolute zero. Such weak
resonances are only available in atoms with complex energy
structures,
and previously have been used only with a select group of non-
magnetic
atoms. When a strongly magnetic atom is used, the combination of
strong magnetic forces and weak absorption of laser photons makes a
traditional MOT unstable. To beat this, the NIST/UM team turned
classic MOT principles on their heads. Rather than shifting the laser
frequency towards the red end of the spectrum—to impact fast, high-
temperature atoms more than slow, cold ones—they shifted the laser
towards the blue side to take advantage of the effects of the
magnetic
field on the highly magnetic particles. Magnetism holds the atoms
stably trapped while the lasers gently pushed them against the field,
now that they have the stability issue worked out, if these particles
could have a net negative charge through an ionization process, or if
they gain electrons, through my idea of inducing a static charge on a
surface of a nano carbon fiber guide wire that runs down the center
of
the Gaussian laser beam at a few millionths of a degree of absolute
zero the magnetic field induced on the carbon nano fiber guide wire
that runs down the center of the single-beam gradient optical trap
consists of a single laser beam, tightly focused to create a very
strong field gradient both radially and axially, which acts on
polarized particles to cause a dipole force on the carbon fiber guide
wire, these particles now ionized will gather by the free-surface
electro hydrodynamic flow of electrons driven by an ionic wind
mechanism induced by a high frequency gas-phase ac field __10 kHz_.
Intense vortices _1 cm/s that generated above a critical voltage,
beyond which the vortices break down to spawn off new vortex pairs
leading to a cascade of vortices over a continuum of length scales;
the mixing efficiency approaches a turbulent-like state. Colloidal
particles are attracted and aggregated on to the carbon nano fiber
guide rail wire by the structures within the vortices by a
combination
of dielectrophoresis and shear-induced diffusion. You now have a new
way to collect all the ionized atoms onto a carbon fiber lattice that
can be used to accumulate vast numbers of exotic atoms for further
research.
.
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