Related topics: quantum computing , quantum mechanics , entanglement
Qubit
hideA quantum bit or qubit (pronounced /ˈkjuːbɪt/) is a unit of quantum information. It is the quantum analogue of the classical bit. It is described by a state vector in a two-level quantum-mechanical system, which is formally equivalent to a two-dimensional vector space over the complex numbers.
For more information about Qubit, read the full article at
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News tagged with qubit
Turning down the noise in quantum data storage
Jan 19, 2010 |
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Researchers who hope to create quantum computers are currently investigating various methods to store data. Nitrogen atoms embedded in diamond show promise for encoding quantum bits (qubits), but the process ...
Physicists Solve Difficult Classical Problem with One Quantum Bit
Jan 08, 2010 |
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(PhysOrg.com) -- Quantum information algorithms have the potential to solve some problems exponentially faster than current classical methods. However, most research on quantum information systems has concentrated ...
Google Collaborates with D-Wave on Possible Quantum Image Search
Dec 15, 2009 |
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(PhysOrg.com) -- Always on the cutting edge of new computing technologies, Google has recently announced that it is investigating the use of quantum computing schemes to achieve faster image recognition rates. ...
Straightening messy correlations with a quantum comb
Nov 23, 2009 |
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Quantum computing promises ultra-fast communication, computation and more powerful ways to encrypt sensitive information. But trying to use quantum states as carriers of information is an extremely delicate ...
Scientists demonstrate 'universal' programmable quantum processor
Nov 15, 2009 |
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Physicists at the National Institute of Standards and Technology have demonstrated the first "universal" programmable quantum information processor able to run any program allowed by quantum mechanics -- th ...
Creating a six-qubit cluster state
Nov 02, 2009 |
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(PhysOrg.com) -- Many scientists believe that quantum entanglement is required in order for effective quantum computing. Entanglement takes place when there is a connection that exists between two objects - even when they ...
Building a better qubit: Combining 6 photons together results in highly robust qubits
Oct 05, 2009 |
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Exploiting quantum mechanics for transmitting information is a tantalizing possibility because it promises secure, high speed communications. Unfortunately, the fragility of methods for storing and sending ...
Physicists Investigate Unusual Four-Qubit Entanglement
Sep 30, 2009 |
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(PhysOrg.com) -- For the first time, physicists have experimentally demonstrated a four-qubit bound-entangled state - a peculiar form of entanglement that cannot be distilled (optimized) by the usual means. ...
Physicists make discovery in quantum mechanics
Sep 23, 2009 |
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(Santa Barbara, Calif.) -- Physicists at UC Santa Barbara have made an important advance in quantum mechanics using a superconducting electrical circuit. The finding is reported in this week's issue of the journal Nature.
Sustained quantum information processing demonstrated
Aug 06, 2009 |
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Raising prospects for building a practical quantum computer, physicists at the National Institute of Standards and Technology have demonstrated sustained, reliable information processing operations on electrically ...
Physicists find way to control individual bits in quantum computers
Jul 07, 2009 |
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Physicists at the National Institute of Standards and Technology have overcome a hurdle in quantum computer development, having devised a viable way to manipulate a single "bit" in a quantum processor without ...
Physicist takes a quantum leap
Jul 06, 2009 |
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(PhysOrg.com) -- A University of Queensland physicist is seeking answers to a persistent problem throughout human history: how do I compute things? None, however, have had the same impact as what we today know as simply the ...
Physicists Demonstrate Quantum Memory with Matter Qubits
Jul 03, 2009 |
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(PhysOrg.com) -- For the first time, scientists have successfully operated a quantum gate between two remote particles of matter, marking an important step toward the development of a quantum computer. In ...
Scientists create first electronic quantum processor
Jun 28, 2009 |
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A team led by Yale University researchers has created the first rudimentary solid-state quantum processor, taking another step toward the ultimate dream of building a quantum computer.
Computing in the quantum dimension
Jun 12, 2009 |
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A huge consortium of European researchers is solving some of the fundamental obstacles blocking real quantum computing applications in the short term. At the same time, it is helping to pave the way to a quantum ...
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