ar X iv : q ua nt - p h / 97 09 04 2 v 1 18 S ep 1 99 7 Measurement and state preparation via ion trap quantum computing
نویسندگان
چکیده
We investigate in detail the effects of a QND vibrational number measurement made on single ions in a recently proposed measurement scheme for the vibrational state of a register of ions in a linear rf trap [C. D'Helon and G. The performance of a measurement shows some interesting patterns which are closely related to searching.
منابع مشابه
ar X iv : q ua nt - p h / 97 08 05 0 v 1 27 A ug 1 99 7 The Los Alamos Trapped Ion Quantum Computer Experiment
The development and theory of an experiment to investigate quantum computation with trapped calcium ions is described. The ion trap, laser and ion requirements are determined, and the parameters required for quantum logic operations as well as simple quantum factoring are described.
متن کاملar X iv : q ua nt - p h / 98 07 07 1 v 1 2 4 Ju l 1 99 8 Trapped Ion Quantum Computer Research at Los
We briefly review the development and theory of an experiment to investigate quantum computation with trapped calcium ions. The ion trap, laser and ion requirements are determined, and the parameters required for simple quantum logic operations are described. (LAUR 98-314)
متن کاملar X iv : q ua nt - p h / 03 04 09 3 v 1 12 A pr 2 00 3 Quantum State Control via Trap - induced Shape Resonance in Ultracold Atomic Collisions
We investigate controlled collisions between trapped but separated ultracold atoms. The interaction between atoms is treated self-consistently using an energy-dependent delta-function pseudopotential model, whose validity we establish. At a critical separation, a “trap-induced shape resonance” between a molecular bound states and a vibrational eigenstate of the trap can occur. This resonance le...
متن کاملar X iv : q ua nt - p h / 04 09 15 5 v 1 23 S ep 2 00 4 Orientations of two coupled molecules
Orientation states of two coupled polar molecules controlled by laser pulses are studied theoretically. By varying the period of a series of periodically applied laser pulse, transition from regular to chaotic behavior may occur. Schmidt decomposition is used to measure the degree of entanglement. It is found that the entanglement can be enhanced by increasing the strength of laser pulse. PACS:...
متن کاملar X iv : q ua nt - p h / 02 09 04 5 v 1 5 S ep 2 00 2 Lewenstein - Sanpera Decomposition for 2 ⊗ 2 Systems
As it is well known, every bipartite 2⊗2 density matrix can be obtained from Bell decompos-able states via local quantum operations and classical communications (LQCC). Using this fact, the Lewenstein-Sanpera decomposition of an arbitrary bipartite 2 ⊗ 2 density matrix has been obtained through LQCC action upon Lewenstein-Sanpera decomposition of Bell decomposable states of 2 ⊗ 2 quantum system...
متن کامل