How to realize a universal quantum gate with trapped ions

By F. Schmidt-Kaler, Hartmut Häffner, S. Gulde, M. Riebe, G. Lancaster, T. Deuschle, Christoph Becher, W. Hänsel, J. Eschner, C. F. Roos and 1 more. 2003

144 citations recorded by the source corpus.

We report the realization of an elementary quantum processor based on a linear crystal of trapped ions. Each ion serves as a quantum bit (qubit) to store the quantum information in long lived electronic states. We present the realization of single-qubit and of universal two-qubit logic gates. The two-qubit operation relies on the coupling of the ions through their collective quantized motion. A detailed description of the setup and the methods is included.

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/06b646cacd962c8fbda62387290c80e0dbcbef75

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In Atomic and Molecular Physics, and Optics

Citations in the corpus

Ion-trap measurements of electric-field noise near surfaces (2014, background): “Similarly, the electrodes of a linear trap are often made of simple rods (Nägerl et al., 1998) or blades (Schmidt-Kaler et al., 2003) [Fig.”
Quantum information with Rydberg atoms (2009, methodology): “Different technologies are suitable for this task including electro-optic deflectors(Schmidt-Kaler et al., 2003), acousto-optic deflectors(Kim et al., 2008; Nägerl et al., 1999), and microoptoelectromechanical systems(Knoernschild et al., 2009).”
Deterministic quantum teleportation with atoms (2004, methodology): “For this, we store three 40 Ca p ions in a linear Paul trap; for a detailed description of the experimental set-up, see ref”
Quantum computing with trapped ions (2008, methodology): “The first sequence uses four sideband pulses (Childs and Chuang, 2000; Gulde et al., 2003; Schmidt-Kaler et al., 2003b) to implement a phase gate in the computational subspace {|D, 0〉, |S, 0〉, |D, 1〉, |S, 1〉}.”
Experimental multiparticle entanglement dynamics induced by decoherence (2010, methodology): “The ion string was optically pumped to the starting quantum state |1111〉 after being Doppler cooled and sideband cooled to the ground state of the axial centre-of-mass mod”
Entangled states of trapped atomic ions (2008, unknown): “Subsequently, Ferdi-nand Schmidt-Kaler et al. 22,23 and later Mark Riebe et al. 24 realized the complete CNOT operation between two individually addressed 40 Ca + ions.”