Generating optical Schrödinger kittens for quantum information processing.
نویسندگان
چکیده
We present a detailed experimental analysis of a free-propagating light pulse prepared in a "Schrödinger kitten" state, which is defined as a quantum superposition of "classical" coherent states with small amplitudes. This kitten state is generated by subtracting one photon from a squeezed vacuum beam, and it clearly presents a negative Wigner function. The predicted influence of the experimental parameters is in excellent agreement with the experimental results. The amplitude of the coherent states can be amplified to transform our "Schrödinger kittens" into bigger Schrödinger cats, providing an essential tool for quantum information processing.
منابع مشابه
Interaction induced photon-number entangled temporal soliton pairs
The quantum fluctuations of two out-of-phase time-separated temporal solitons are calculated. Almost perfect positive correlation between their photon-number fluctuations can be achieved after propgating a certain distance and with suitable initial separation. OCIS codes: (270.5530, 270.6570) Pulse propagation and solitons, Squeezed states. After the first realization of quantum teleportation w...
متن کاملSchrödinger cats and their power for quantum information processing
We outline a toolbox comprised of passive optical elements, single photon detection and superpositions of coherent states (Schrödinger cat states). Such a toolbox is a powerful collection of primitives for quantum information processing tasks. We illustrate its use by outlining a proposal for universal quantum computation. We utilize this toolbox for quantum metrology applications, for instance...
متن کاملConcurrent Remote Entanglement with Quantum Error Correction
Remote entanglement of distant, non-interacting quantum entities is a key primitive for quantum information processing. We present a new protocol to remotely entangle two stationary qubits by first entangling them with propagating ancilla qubits and then performing a joint two-qubit measurement on the ancillas. Subsequently, single-qubit measurements are performed on each of the ancillas. We de...
متن کاملAnalysis of Document Clustering using Pseudo Dynamic Quantum Clustering Approach
---------------------------------------------------------------------***--------------------------------------------------------------------Abstract In the field of information processing like data mining, information retrieval, natural language processing and machine learning, Quantum Computing play vital role for extracting the implicit, potentially useful and previously unknown information f...
متن کاملAnalytical Soliton Solutions Modeling of Nonlinear Schrödinger Equation with the Dual Power Law Nonlinearity
Introduction In this study, we use a newly proposed method based on the software structure of the maple, called the Khaters method, and will be introducing exponential, hyperbolic, and trigonometric solutions for one of the Schrödinger equations, called the nonlinear Schrödinger equation with the dual power law nonlinearity. Given the widespread use of the Schrödinger equation in physics and e...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Science
دوره 312 5770 شماره
صفحات -
تاریخ انتشار 2006