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Quantum Algorithms: 11/01/2004 - 12/01/2004
Quantum chip circuitry demonstrated
EE Times - Quantum chip circuitry demonstrated: "Yale University researchers have demonstrated how to build a quantum computer operating on quantum bits, or qubits, which hold a superposition of quantum states. [...] The advantages of Yale's method include the relatively small size of its qubit repositories - about a square micron - and the ability to read a qubit's state without disturbing it - the bane of quantum computers to date. [...] The Yale approach stored qubits in a Cooper-box with over 1 billion superconducting aluminum atoms acting together, thereby providing a kind of quantum momentum that allowed a 'probing' photon to read out a qubit's state from the Cooper-box without changing its state."
Updates: I found this pdf to be a pretty good lightly-technical explanation of the experiment. Also, here [zhurnal.net] and here [www.lkb.ens.fr] are some interesting explanations of Quantum Non-Demolition.
- posted by Jonathan @ 9:32 PM 0 comments
The NSA Wants Your Quantum Algorithms
NSA Funding Opportunity in Quantum Computing Algorithms: "The National Security Agency solicits proposals for one-year research grants in the area of Quantum Computing Algorithms. [...] We are not interested in funding work such as quantum error correction, which supports the 'infrastructure' of quantum computation but is not a quantum algorithm in our sense. We are more interested in algorithms related to number theory, algebra, and combinatorics than in topics such as physical modeling and database analysis."
- posted by Jonathan @ 9:04 PM 0 comments
Single Field Qubit Control
Single field shapes quantum bits TRN 110304: "Researchers have recently realized that it may be possible to control the electrons in a quantum computer using a single magnetic field rather than having to produce extremely small, precisely focused magnetic fields for each electron"
- posted by Jonathan @ 1:17 AM 1 comments
Grover's Sampling Algorithm
Quantum Sampling Algorithm TRN 062800: "The sampling algorithm, written by Bell Labs' researcher Lov K. Grover, enables three types of applications for quantum computing: statistical sampling, searching with sketchy information and Monte Carlo integration [...] Although the sampling algorithm is probably not as 'novel and exciting' as Grover's original search algorithm, no one doubts the importance of sampling on quantum computers"
Update: Sorry for not noticing sooner, but this story is fairly old (July 2000) which I should have at least mentioned.
- posted by Jonathan @ 1:15 AM 0 comments
Particle Physics for the Rest of Us
Symmetry Magazine has recently debuted, which is a joint venture of SLAC and Fermi Lab. The editor, David Harris, also has a blog.
- posted by Jonathan @ 4:28 PM 0 comments
August Wrap Up
-2 million correlated entangled photon pairs produced per second
-Entangled quantum dots
-New way to synthesize quantum dots (and more here)
-Photon teleportation over 600m
-Controlled emission rates of quantum dots
-Five photons entangled
-Open destination quantum teleportation
- posted by Jonathan @ 10:06 PM 0 comments
Quantum Computing Blog: Quantum algorithms, quantum information, industry news, interesting research, and related fields. Feedback welcomed:
jjkleid [ at ] yahoo . com
-Jonathan Kleid
Links
Peter Shor Interview
The Best of QC
Atom Site Feed
Blogs
QubitNews
Lance Fortnow
Michael Nielsen
Chris C Mooney
David Cerezo
The Geomblog
Quantum Pontiff
Quantized Espresso
coherence *
Shtetl-Optimized
Archives
11/01/2003 - 12/01/2003
12/01/2003 - 01/01/2004
01/01/2004 - 02/01/2004
02/01/2004 - 03/01/2004
03/01/2004 - 04/01/2004
04/01/2004 - 05/01/2004
05/01/2004 - 06/01/2004
10/01/2004 - 11/01/2004
11/01/2004 - 12/01/2004
12/01/2004 - 01/01/2005
01/01/2005 - 02/01/2005
02/01/2005 - 03/01/2005
03/01/2005 - 04/01/2005
05/01/2005 - 06/01/2005
06/01/2005 - 07/01/2005
08/01/2005 - 09/01/2005
09/01/2005 - 10/01/2005
03/01/2006 - 04/01/2006
11/01/2006 - 12/01/2006
04/01/2007 - 05/01/2007
12/01/2008 - 01/01/2009
Peter Shor Interview
The Best of QC
Atom Site FeedBlogs
QubitNews
Lance Fortnow
Michael Nielsen
Chris C Mooney
David Cerezo
The Geomblog
Quantum Pontiff
Quantized Espresso
coherence *
Shtetl-Optimized
Archives
11/01/2003 - 12/01/2003
12/01/2003 - 01/01/2004
01/01/2004 - 02/01/2004
02/01/2004 - 03/01/2004
03/01/2004 - 04/01/2004
04/01/2004 - 05/01/2004
05/01/2004 - 06/01/2004
10/01/2004 - 11/01/2004
11/01/2004 - 12/01/2004
12/01/2004 - 01/01/2005
01/01/2005 - 02/01/2005
02/01/2005 - 03/01/2005
03/01/2005 - 04/01/2005
05/01/2005 - 06/01/2005
06/01/2005 - 07/01/2005
08/01/2005 - 09/01/2005
09/01/2005 - 10/01/2005
03/01/2006 - 04/01/2006
11/01/2006 - 12/01/2006
04/01/2007 - 05/01/2007
12/01/2008 - 01/01/2009
Quantum Algorithms
Wednesday, November 24, 2004
Quantum chip circuitry demonstrated
EE Times - Quantum chip circuitry demonstrated: "Yale University researchers have demonstrated how to build a quantum computer operating on quantum bits, or qubits, which hold a superposition of quantum states. [...] The advantages of Yale's method include the relatively small size of its qubit repositories - about a square micron - and the ability to read a qubit's state without disturbing it - the bane of quantum computers to date. [...] The Yale approach stored qubits in a Cooper-box with over 1 billion superconducting aluminum atoms acting together, thereby providing a kind of quantum momentum that allowed a 'probing' photon to read out a qubit's state from the Cooper-box without changing its state."
Updates: I found this pdf to be a pretty good lightly-technical explanation of the experiment. Also, here [zhurnal.net] and here [www.lkb.ens.fr] are some interesting explanations of Quantum Non-Demolition.
- posted by Jonathan @ 9:32 PM 0 comments
The NSA Wants Your Quantum Algorithms
NSA Funding Opportunity in Quantum Computing Algorithms: "The National Security Agency solicits proposals for one-year research grants in the area of Quantum Computing Algorithms. [...] We are not interested in funding work such as quantum error correction, which supports the 'infrastructure' of quantum computation but is not a quantum algorithm in our sense. We are more interested in algorithms related to number theory, algebra, and combinatorics than in topics such as physical modeling and database analysis."
- posted by Jonathan @ 9:04 PM 0 comments
Sunday, November 14, 2004
Single Field Qubit Control
Single field shapes quantum bits TRN 110304: "Researchers have recently realized that it may be possible to control the electrons in a quantum computer using a single magnetic field rather than having to produce extremely small, precisely focused magnetic fields for each electron"
- posted by Jonathan @ 1:17 AM 1 comments
Grover's Sampling Algorithm
Quantum Sampling Algorithm TRN 062800: "The sampling algorithm, written by Bell Labs' researcher Lov K. Grover, enables three types of applications for quantum computing: statistical sampling, searching with sketchy information and Monte Carlo integration [...] Although the sampling algorithm is probably not as 'novel and exciting' as Grover's original search algorithm, no one doubts the importance of sampling on quantum computers"
Update: Sorry for not noticing sooner, but this story is fairly old (July 2000) which I should have at least mentioned.
- posted by Jonathan @ 1:15 AM 0 comments
Saturday, November 06, 2004
Particle Physics for the Rest of Us
Symmetry Magazine has recently debuted, which is a joint venture of SLAC and Fermi Lab. The editor, David Harris, also has a blog.
- posted by Jonathan @ 4:28 PM 0 comments
Tuesday, November 02, 2004
August Wrap Up
-2 million correlated entangled photon pairs produced per second
-Entangled quantum dots
-New way to synthesize quantum dots (and more here)
-Photon teleportation over 600m
-Controlled emission rates of quantum dots
-Five photons entangled
-Open destination quantum teleportation
- posted by Jonathan @ 10:06 PM 0 comments
