2,301 research outputs found
Protection of entanglement for a two-qutrit V-type open system on the basis of system-reservoir bound states
In this work, a mechanism for long time protection of entanglement of a
two-qutrit V-type atomic system each of which interacts independently with a
dissipative reservoir is investigated. It is shown that the protection process
is related exclusively on the formation of bound states in the system-reservoir
energy spectrum. It is demonstrated that the degree of boundedness for the
system-reservoir bound states is well-controlled by entering other V-type
qutrits into the reservoirs, and also through the manipulation of the
spontaneously generated interference related to decay channels of the V-type
atoms.Comment: 12 pages, 3 figure
IL-12 Family Cytokines: General Characteristics, Pathogenic Microorganisms, Receptors, and Signalling Pathways
Among a wide range of cytokines, the Interleukin 12 (IL-12) family has its unique structural, functional, and immunological characteristics that have made this family as important immunological playmakers. Because of the importance of IL-12 heterodimeric cytokines in microbial infections, autoimmune diseases, and cancers, the authors of this literature discuss about the general characteristics of IL-12 family members, the interactions between IL-12 cytokines and pathogenic microorganisms, the interleukins receptors and their strategies for selecting different signalling pathways. IL-12 and IL-23 are similar in p40 subunits and both are involved in proinflammatory responses while, IL-27 and IL-35 contribute to anti-inflammatory activities; however, IL-27 is also involved in pro-inflammatory responses. There are some similarities and dissimilarities among IL-12 family members which make them a unique bridge between innate and adaptive immune systems. The bioactivities of IL-12 family indicate a brilliant promise for their applications in different fields of medicine. The members of IL-12 family are candidate for several therapeutics including gene therapy, cancer therapy, tumour therapy, and vaccination. To have an accurate diagnostic technique and definite treatment regarding to infectious diseases, the playmakers of IL-12 family as effective criteria together with microarray technology are the best choices for current and future applications
Perfect transfer of coherent state-based qubits via coupled cavities
Motivated by the need for communication of coherent state-based qubits in
quantum computers, we introduce a method for perfect transferring of an
arbitrary superposition of coherent states between two distant nodes of a
linear array of three semiconductor QDs. The QDs trapped in a system of coupled
cavities. In this method, the field mode of the cavities, as the resource of
transferring of quantum states, are only virtually excited which minimizes the
effect of decoherence due to photon loss.Comment: 10 pages, 3 figures. arXiv admin note: text overlap with
arXiv:quant-ph/0211055 by other author
Perfect routing of quantum information in regular cavity QED networks
We introduce a scheme for perfect routing of quantum states and entanglement
in regular cavity QED networks. The couplings between the cavities are
quasi-uniform and each cavity is doped with a two-level atom. Quasi-uniform
couplings leads the system to evolve in invariant subspaces. Combination the
evolutions of the system in its invariant subspaces with quite simple local
operations on atoms in the networks, gives the perfect routing of quantum
states and entanglement through the network. To provide the protocol be robust
due to decoherence arisen from photon loss, the field mode of the cavities are
only virtually excited
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