A Radial Wave Packet Schrödinger Cat State

Hugo Benichi, Shuntaro Takeda, Noriyuki Lee +4 more

We demonstrate teleportation of Schrödinger’s cat states of light in a fully quantum regime To further increase non-classicality of operations we propose two improvements: wave-packet frequency mode-matching; conditional teleportation.

Octavio Castaños, Ramón López–Peña, Vladimir I. Man’ko

Xin Chen, John A. Yeazell

We examine the dynamics of two or more interfering wave packets. Via an analytical expression for the interfering wave packets, the redistribution of population and the evolution of the wave packets are studied. This analysis is in agreement with recent experimental investigations of interfering wave packets including the excitation of a Schr\"odinger cat state. The analysis is extended to multiple pulses and offers a simple formula for predicting their behavior.

Luming Duan

Christopher R. Monroe, D. M. Meekhof, B. E. King +1 more

A "Schrodinger cat"-like state of matter was generated at the single atom level. A trapped 9Be+ ion was laser-cooled to the zero-point energy and then prepared in a superposition of spatially separated coherent harmonic oscillator states. This state was created by application of a sequence of laser pulses, which entangles internal (electronic) and external (motional) states of the ion. The Schrodinger cat superposition was verified by detection of the quantum mechanical interference between the localized wave packets. This mesoscopic system may provide insight into the fuzzy boundary between the classical and quantum worlds by allowing controlled studies of quantum measurement and quantum decoherence.

Ian Colin Percival