Saturday, May 29, 2010
Thursday, May 27, 2010
Multi-particle entanglement in solid is a first
Jun 5, 2008
An international team of physicists has entangled three diamond nuclei for the first time. The development promotes solid-state systems to a rank of quantum systems including ions and photons that have achieved entanglement for more than two particles.
Entanglement lies at the heart of fields such as quantum computation and quantum teleportation. At its most basic level, if two particles are entangled a measurement of the state of one reveals something about the state of the other, regardless of the distance separating them.
An international team of physicists has entangled three diamond nuclei for the first time. The development promotes solid-state systems to a rank of quantum systems including ions and photons that have achieved entanglement for more than two particles.
Entanglement lies at the heart of fields such as quantum computation and quantum teleportation. At its most basic level, if two particles are entangled a measurement of the state of one reveals something about the state of the other, regardless of the distance separating them.
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Research
Quantum Entangled Images
In this photo montage of actual quantum images, two laser beams coming from the bright glare in the distance transmit images of a cat-like face at two slightly different frequencies (represented by the orange and the purple colors). The twisted lines indicate that the seemingly random changes or fluctuations that occur over time in any part of the orange image are strongly interconnected or “entangled” with the fluctuations of the corresponding part in the purple image. Though false color has been added to the cats’ faces, they are otherwise actual images obtained in the experiment.
Credit: NIST
View hi-resolution image
Source : I got email (25 June 2008) from my supervisor about this, tq dr hz....here the link.
Credit: NIST
View hi-resolution image
Source : I got email (25 June 2008) from my supervisor about this, tq dr hz....here the link.
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Qubit and Qutrit,
Research
Monday, May 24, 2010
What is Entanglement witnesses?
From: Relations between entanglement witnesses and Bell inequalities (PHYSICAL REVIEW A 72, 012321 (2005))
1. Entanglement witnesses are operators that are designed directly for distinguishing between separable and entangled states.
[M. Horodecki, P. Horodecki, and R. Horodecki, Phys. Lett. A 223, 1 (1996),B. M. Terhal, Phys. Lett. A 271, 319 (2000),M. Lewenstein, B. Kraus, J. I. Cirac, and P. Horodecki, Phys.Rev. A 62, 052310 (2000)]
1. Entanglement witnesses are operators that are designed directly for distinguishing between separable and entangled states.
[M. Horodecki, P. Horodecki, and R. Horodecki, Phys. Lett. A 223, 1 (1996),B. M. Terhal, Phys. Lett. A 271, 319 (2000),M. Lewenstein, B. Kraus, J. I. Cirac, and P. Horodecki, Phys.Rev. A 62, 052310 (2000)]
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Research
Monday, May 17, 2010
Tuesday, May 4, 2010
Announcement Na : EQuaLS4 ( 28 June- 1 July 2010 )
Date : 28 JUNE - 1 JULY 2010
Venue : Seminar Room Al -Khawarizmi. Mathematics Building, UPM
The speakers and the title of their talks are listed below:
1. Sigbjorn Hervik (Universitetet Stavanger, Norway), "Cosmological Models for Our Universe"
2. Jiro Soda (Kyoto University, Japan), "Fine Structures of Inflationary Scenario"
3. Anirudh Pradhan (Hindu Postgraduate College, India), "Recent Developments in Gravity and Cosmology"
4. Rajesh Parwani (National University of Singapore), "Information Theory, Particle Physics and Cosmology"
5. Teo Lee Peng (University of Nottingham, Malaysia Branch), "Finite Temperature Casimir Effect"
WHO SHOULD ATTEND
All researchers and students interested in cosmology, relativity, high energy physics and related areas of mathematics and theoretical sciences.
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Announcement Na
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