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Fredkin Spin Chain · Around

2016

Fredkin Spin Chain

Salberger, Olof, Korepin, Vladimir

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We introduce a new model of interacting spin 1/2.

It describes interaction of three nearest neighbors.
The Hamiltonian can be expressed in terms of Fredkin gates.
The Fredkin gate (also known as the CSWAP gate) is a computational circuit suitable for reversible computing.

Built on

Concentrating partial entanglement by local operations
Charles H Bennett, Herbert J Bernstein, Sandu Popescu, and Benjamin Schumacher · 1996
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Effective quantum spin systems with trapped ions
Diego Porras and J Ignacio Cirac · 2004
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Criticality without frustration for quantum spin-1 chains
Sergey Bravyi, Libor Caha, Ramis Movassagh, Daniel Nagaj, and Peter W Shor · 2012
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