ar X iv : c on d - m at / 0 11 01 50 v 1 8 O ct 2 00 1 Entanglement and Quantum Gate Operations with Spin - Qubits in Quantum Dots ∗
نویسندگان
چکیده
We give an elementary introduction to the notion of quantum entanglement between distinguishable parties and review a recent proposal about solid state quantum computation with spin-qubits in quantum dots. The indistinguishable character of the electrons whose spins realize the qubits gives rise to further entanglement-like quantum correlations. We summarize recent results concerning this type of quantum correlations of indistinguishable particles.
منابع مشابه
ar X iv : c on d - m at / 0 21 21 41 v 1 6 D ec 2 00 2 Dynamics of entanglement between quantum dot spin - qubits ∗
We briefly review the physics of gate operations between quantum dot spin-qubits and analyze the dynamics of quantum entanglement in such processes. The indistinguishable character of the electrons whose spins realize the qubits gives rise to further entanglement-like quantum correlations that go beyond simple antisymmetrization effects. We also summarize further recent results concerning this ...
متن کاملar X iv : c on d - m at / 0 31 01 99 v 1 9 O ct 2 00 3 Chapter 1 ENTANGLEMENT PRODUCTION IN A CHAOTIC QUANTUM DOT
It has recently been shown theoretically that elastic scattering in the Fermi sea produces quantum mechanically entangled states. The mechanism is similar to entanglement by a beam splitter in optics, but a key distinction is that the electronic mechanism works even if the source is in local thermal equilibrium. An experimental realization was proposed using tunneling between two edge channels ...
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X iv :0 80 5. 24 72 v1 [ qu an tph ] 1 6 M ay 2 00 8 Some stochastic local operations and classical communication entanglement classes of n qubits 1 Dafa Li, Xinxin Li , Hongtao Huang, Xiangrong Li a Dept of mathematical sciences, Tsinghua University, Beijing 100084 CHINA b Dept. of Computer Science, Wayne State University, Detroit, MI 48202, USA c Electrical Engineering and Computer Science De...
متن کاملar X iv : q ua nt - p h / 02 12 07 9 v 2 1 4 M ar 2 00 3 Quantum information processing with trapped ions
Experiments directed towards the development of a quantum computer based on trapped atomic ions are described briefly. We discuss the implementation of single qubit operations and gates between qubits. A geometric phase gate between two ion qubits is described. Limitations of the trapped-ion method such as those caused by Stark shifts and spontaneous emission are addressed. Finally, we describe...
متن کاملar X iv : q ua nt - p h / 06 11 18 7 v 1 1 7 N ov 2 00 6 Philosophical Aspects of Quantum Information Theory
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