Cloning of symmetricd-level photonic states in physical systems
نویسندگان
چکیده
منابع مشابه
Topological states in photonic systems
Optics played a key role in the discovery of geometric phase. Once again, it joins the journey of exploring topological physics, bringing us bosonic topological states of one-way waveguides, Weyl points and a single surface Dirac cone. At the interfaces of topological photonic materials, the propagation of photons is protected against disorder by the momentum-space topologies in the bulk. Topol...
متن کاملNo Cloning of Orthogonal States in Composite Systems
The no-cloning principle tells us that nonorthogonal quantum states cannot be cloned, but it does not tell us that orthogonal states can always be cloned. We suggest a situation where the cloning transformations are restricted, leading to a novel type of no-cloning principle. In the case of a composite system made of two subsystems: if the subsystems are only available one after the other then ...
متن کاملPhotonic Programmable Tele-Cloning Network
The concept of quantum teleportation allows an unknown quantum states to be broadcasted and processed in a distributed quantum network. The quantum information injected into the network can be diluted to distant multi-copies by quantum cloning and processed by arbitrary quantum logic gates which were programed in advance in the network quantum state. A quantum network combines simultaneously th...
متن کاملQuantum phase transitions in photonic cavities with two-level systems
Systems of coupled photonic cavities have been predicted to exhibit quantum phase transitions by analogy with the Hubbard model. To this end, we have studied topologies of few up to six photonic cavities each containing a single two-level system. Quantum phase space diagrams are produced for these systems, and compared to mean-field results. We also consider finite effective temperature, and co...
متن کاملSurface states in photonic crystals
The propagation of surface electromagnetic waves along photonic crystal (PC) boundaries is examined. It is shown that in a number of cases, these are backward waves. The nature of surface electromagnetic states localized at the PC boundary is discussed; these states transfer no energy along the boundary (their tangential wave number is zero). An analogy with the well-known Tamm and Shockley sur...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review A
سال: 2002
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.66.024307