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2nd-Order Correction

Friday, March 19th, 2010

Rommel J. Jagus Find the 2nd-order correction to the energies [eq](E_n^{2})[/eq] for the potential [eq]H=\alpha \delta (x-\frac{a}{2})[/eq] Solution: [eq] <\Psi_{m}^{0} | H | \Psi_{n}^{0}> = \frac{2} {a} \alpha \int_0^a sin(\frac{m x \pi }{a} ) \delta (x-\frac{a}{2}) sin(\frac{n x \pi }{a})[/eq] [eq] <\Psi_{m}^{0} | H | \Psi_{n}^{0}> =\frac{2} {a} \alpha [a sin(\frac{m \pi }{a} ) sin(\frac{n […]

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Quantum Information Processing with Atoms and Photons

Tuesday, March 16th, 2010

Michael J. Jabines Quantum information science(QIS) is a new field of science and technology, combining and drawing on the disciplines of physical science, mathematics, computer science and engineering. Here, Quantum information processors exploit the quantum features of superposition and entanglement for application not possible in classical devices. It offers the potential for significant improvements in […]

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Tuesday, March 16th, 2010

Eric M. Alcantara The present state of atomic theory is characterized by the fact that we not only believe that existence of atoms to be proved, but also we even believe that we have an intimate knowledge of the constituents of the individual atoms. It was in the early decades of the 19th century when […]

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What quantum computers may tell us about quantum mechanics

Monday, March 15th, 2010

Carlo Paul P. Morente Even if quantum mechanics occupies a unique role in the course of history, its foundations are often questioned due to the difficulty of reconciling it with classical laws of physics. While today‚Äôs technology leads to the device being miniature towards atomic scale, quantum effects are beginning to confront this trend such […]

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Entanglement, Decoherence and the Quantum/Classical Boundary*

Thursday, March 11th, 2010

Christine Marie T. Ceblano Since 1996 to 1998, great advancement has been made in the entangling experiments, like ions in trap and atoms in high Q-cavities which are disparate in techniques and yet similar in a way that they both comprehend a simple situation in which a two-level atom is coupled to a quantized harmonic […]

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