Universal quantum computation with the exchange interaction

Article Abstract:

Research is presented on an explicit scheme using the Heisenberg interaction alone to implement any quantum computer circuit. The cost of this capability is a factor of three in additional qubits, and a factor of approximately ten in any other two-qubit operations.

Heisenberg uncertainty principle

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Protecting the quantum world

Article Abstract:

Issues are presented concerning the process of decoherence which occurs through the interaction of quantum systems. The instability of quantum states against decoherence and its manipulation are discussed.

Environmental engineering

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Locally critical quantum phase transitions in strongly correlated metals

Article Abstract:

Research is presented describing the study of zero-temperature magnetic transition of heave fermion metals to measure local criticality point dynamics.

Transition metals, Critical point, Critical points (Physics)

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