The impossibility of perfectly copying or cloning an unknown quantum state is one of the basic rules governing the physics of quantum systems. The processes that perform the optimal approximate cloning have been found in many cases. These “quantum cloning machines” are important tools for studying a wide variety of tasks, e.g., state estimation and eavesdropping on quantum cryptography. This pa...

Code duplication, or code cloning, is a common phenomena in the development of large software systems. Developers have a love-hate relationship with cloning. On one hand, cloning speeds up the development process. On the other hand, clone management is a challenging task as software evolves. Cloning has commonly been considered as undesirable for software maintenance and several research effort...

An unknown quantum state cannot be copied and broadcast freely due to the no-cloning theorem. Approximate cloning schemes have been proposed to achieve the optimal cloning characterized by the maximal fidelity between the original and its copies. Here, from the perspective of quantum Fisher information (QFI), we investigate the distribution of QFI in asymmetric cloning machines which produce tw...

participatory conservation, as bottom-up management, is currently the most acceptable modelfor management of protected areas across the world. social context is a central issue in the sustainablemanagement of conservation areas. it is also crucial to introducing participatory conservation. the newapproach therefore recognizes rural communities as key partners in biodiversity management and seek...

Background: For several years, mammalian cloning by splitting an early embryo or nuclear transfer into oocytes method has been successfully performed. Cloning is now also possible using adult somatic cells. Although it has now been 15 years since the first cloned mammals were generated from somatic cells using nuclear transfer (NT), the success rate for producing live offspring by cloning is lo...

A network of agents constituted multiple unmanned aerial vehicles (UAVs) is emerging as a promising technology with myriad applications in the military, public, and civil domains. UAVs’ power, memory, size constraints, ultra-mobile nature, non-trusted operational environments make them susceptible to various attacks, including physical capturing cloning attacks. robust resilient security protoc...

Quantum steering in a global state allows an observer to remotely steer subsystem into different ensembles by performing local measurements on the other part. We show that, general, this property cannot be perfectly cloned any joint operation between steered and third system. Perfect cloning is viable if only initial of zero discord. also investigate process qubit Bell using universal machine. ...

In conventional quantum mechanics, no-deleting and no-cloning theorems indicate that two different nonorthogonal states cannot be perfectly deterministically deleted cloned, respectively. Here, we investigate the deleting cloning in a pseudo-unitary system. We first present pseudo-Hermitian Hamiltonian with real eigenvalues two-qubit By using operators generated from this Hamiltonian, show it i...