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Quantum Physics Jul 30, 2012

Qubits that never interact could exhibit past-future entanglement

(Phys.org) -- Typically, for two particles to become entangled, they must first physically interact. Then when the particles are physically separated and still share the same quantum state, they are considered to be entangled. ...

General Physics Mar 21, 2012

Researchers engineer molecular magnets to act as long-lived qubits

(PhysOrg.com) -- Some physicists today are investigating the possibility of using molecular magnets as information storage units in future quantum computers. Molecular magnets are molecules whose magnetic moments prefer to ...

Quantum Physics Aug 31, 2011

NIST achieves record-low error rate for quantum information processing with one qubit

(PhysOrg.com) -- Thanks to advances in experimental design, physicists at the National Institute of Standards and Technology (NIST) have achieved a record-low probability of error in quantum information processing with a ...

Optics & Photonics Nov 30, 2010

Nano-diamond qubits and photonic crystals

Quantum information processing is arguably one of the most fascinating facets of modern quantum physics.

Quantum Physics May 4, 2010

Physicists set guidelines for qubit candidates

(PhysOrg.com) -- To build a quantum computer, it's essential to be able to quickly and efficiently manipulate the quantum states of qubits. The qubits, which are the basic unit of quantum information, can be composed of many ...

General Physics Oct 22, 2008

Memoirs of a qubit: Hybrid memory solves key problem for quantum computing

An international team of scientists has performed the ultimate miniaturisation of computer memory: storing information inside the nucleus of an atom. This breakthrough is a key step in bringing to life a quantum computer ...

General Physics Jul 3, 2008

Qubits and Branes Share Surprising Features

What do black holes and entangled particles have in common? Until about a year ago, physicists thought that the two entities existed in completely separate worlds. Then, in 2007, physicist Michael Duff from Imperial College ...

General Physics Feb 26, 2008

Physicists Demonstrate Qubit-Qutrit Entanglement

For the first time, physicists have entangled a qubit with a “qutrit” – the 3D version of the 2D qubit. Qubit-qutrit entanglement could lead to advantages in quantum computing, such as increased security and more efficient ...

General Physics Jun 14, 2007

2 qubits in action, new step towards the quantum computer

Researchers at Delft University of Technology have succeeded in carrying out calculations with two quantum bits, the building blocks of a possible future quantum computer. The Delft researchers are publishing an article about ...

General Physics May 3, 2007

NEC, JST and RIKEN demonstrate world's first controllably coupled qubits

NEC Corp., Japan Science and Technology Agency (JST) and the Institute of Physical and Chemical Research (RIKEN) have together successfully demonstrated the world's first quantum bit (qubit) circuit that can control the strength ...

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