Implementing scalable quantum computation with cavities

Zhi‐Bo Feng

Vittorio Giovannetti, P. Tombesi, David Vitali

We propose a scheme for quantum computing using high-Q cavities. In this scalable scheme, the qubits are represented by single-cavity modes restricted in the space spanned by the two lowest Fock states 0) and 1). One and two-qubit operations are performed via atoms sequentially crossing the cavities.

Anonymous

Vittorio Giovannetti, David Vitali, P. Tombesi +1 more

We propose a scheme for quantum computing using high-$Q$ cavities in which the qubits are represented by single-cavity modes restricted in the space spanned by the two lowest Fock states. We show that single-qubit operations and universal multiple qubit gates can be implemented using atoms sequentially crossing the cavities.

Lin Xiu, Rong‐Can Yang, Xiang Chen

We present a scheme to implement a quantum [Formula: see text] gate for two-atom trapped in distant cavities connected via an optical fiber. In the whole process, the atomic system, the cavity modes and the fiber are not excited ensuring that the operation is insensitive to atomic spontaneous emission, cavity decay and the fiber loss. This scheme is significant for distributed and scalable quantum computation.