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The quantum dynamics of two coupled qubits
G. J. Milburn, R. Laflamme, B. C. Sanders +1
We investigate the difference between classical and quantum dynamics of coupled magnetic dipoles. We prove that in general the dynamics of the classical interaction Hamiltonian dif…
A Note on Linear Optics Gates by Post-Selection
E. Knill
Recently it was realized that linear optics and photo-detectors with feedback can be used for theoretically efficient quantum information processing. The first of three steps towar…
Simulating Physical Phenomena by Quantum Networks
R. Somma, G. Ortiz, J. E. Gubernatis +2
Physical systems, characterized by an ensemble of interacting elementary constituents, can be represented and studied by different algebras of observables or operators. For example…
Fermionic Linear Optics and Matchgates
E. Knill
Fermionic linear optics is efficiently classically simulatable. Here it is shown that the set of states achievable with fermionic linear optics and particle measurements is the clo…
Implementation of the Five Qubit Error Correction Benchmark
E. Knill, R. Laflamme, R. Martinez +1
The smallest quantum code that can correct all one-qubit errors is based on five qubits. We experimentally implemented the encoding, decoding and error-correction quantum networks…