ATOMTRONICS PDF

Pulla Reddy College of Engineering Kurnool. Contact No: Email id: ranadheergoud10 gmail. Contact No: Email id: yvamshi93 gmail. Atomtronics is an emerging technology that offers a wide range of applications. When super cooled to form BoseEinstein condensates, atoms placed in an optical lattice may form states analogous to electrons in solid-state crystalline media such electronics, Mechatronics and may be even Spintronics, but the latest buzzword doing the rounds of physics labs is Atomtronics the science of creating circuits, devices and materials using ultra-cold atoms instead of electrons. Atomtronics is a young and mostly theoretical field based on the idea that atoms in unusual quantum states of matter may provide an alternative to the tried and true electron for making useful devices.

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What is the Bose Einstein Condensation In the early s Satyendra Nath Bose was studying the new idea at that time that the light came in little discrete packets we now call these "quanta" or "photons". Bose assumed certain rules for deciding when two photons should be counted up as either identical or different. We now call these rules "Bose statistics" or sometimes "Bose-Einstein statistics". Einstein guessed that these same rules might apply to atoms. He worked out the theory for how atoms would behave in a gas if these new rules applied.

However, at very low temperatures, a large fraction of the atoms would suddenly go crashing down into the very lowest energy level and most of the atoms will be in the same quantum level. How was the Bose-Einstein Condensation made? Eric Cornell and Carl Wieman in , made Bose-Einstein condensate by cooling atoms to a much lower temperature than had been previously achieved.

Their technique used laser light to first cool and hold the atoms, and then these atoms were further cooled by called evaporative cooling. The success of the Bose-Einstein condensation experiment, opened the gates to the possibility of the development of Atomtronics technology.

The experimental atomtronics realizations promise to be extremely clean. Imperfections such as lattice defects or photons can be completely eliminated.

Atomtronics allows study of an idealised system. Atomtronics systems are richer than their electronic counterparts because atoms possess more internal degrees of freedom than electrons and interaction between these can be widely varied from strong to weak. A quantum computer is a device for computation that makes direct use of quantum mechanical phenomena, such as superposition and entanglement, to perform operations on data. Quantum computers are different from digital computers based on transistors.

Whereas digital computers require data to be encoded into binary digits bits , But In quantum computing we store a quantum state on an object, perform operations on the object and then read out the final state. Atoms trapped in optical lattices in Atomtronics devices have been considered extensively useful for specific quantum computing schemes due to their inherent energy conserving characteristics.

Therefore the dynamics of atomtronic devices would be coherent and potentially useful in quantum computing. It has been concluded that atomtronic systems provide a nice test of fundamental concepts in condensed matter physics.

While these ideas have been modelled, they are yet to be built. They are : Atomtronic Conductor Atomtronic diode.

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How To Build An Atomtronic Computer

Resources Atomtronics At the heart of the atomtronics experiment is our window atom chip technology shown below. By patterning wires directly over the chip window it becomes possible to produce samples of ultracold atoms extremely close to a surface with high numerical aperture optical access. The optical window affords us significant versatility in regards to imaging and optical manipulation of magnetically trapped ultracold atoms. To this end we have developed a high numerical aperture microscope system from commercially available components for simultaneous optical projection and imaging. With our current atom chip design we can, in principle, work at numerical apertures of up to 0. Shown below is a schematic representation of this microscope system. Note that all of the optics necessary for high numerical aperture optical access are placed outside of the vacuum chamber eliminating the need for custom in-vacuo optical systems.

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Atomtronics

What is the Bose Einstein Condensation In the early s Satyendra Nath Bose was studying the new idea at that time that the light came in little discrete packets we now call these "quanta" or "photons". Bose assumed certain rules for deciding when two photons should be counted up as either identical or different. We now call these rules "Bose statistics" or sometimes "Bose-Einstein statistics". Einstein guessed that these same rules might apply to atoms. He worked out the theory for how atoms would behave in a gas if these new rules applied. However, at very low temperatures, a large fraction of the atoms would suddenly go crashing down into the very lowest energy level and most of the atoms will be in the same quantum level. How was the Bose-Einstein Condensation made?

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