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- Palacký University OlomoucCZ37 papers
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8 papers · 2 filters
Orthogonal-state-based protocols of quantum key agreement
Chitra Shukla, Nasir Alam, Anirban Pathak
Two orthogonal-state-based protocols of quantum key agreement (QKA) are proposed. The first protocol of QKA proposed here is designed for two-party QKA, whereas the second protocol…
Direct quantum communication without actual transmission of the message qubits
Chitra Shukla, Anirban Pathak
Recently an orthogonal state based protocol of direct quantum communication without actual transmission of particles is proposed by Salih \emph{et al.}{[}Phys. Rev. Lett. \textbf{1…
Nonclassicality in two-mode BEC
Sandip Kumar Giri, Biswajit Sen, C H Raymond Ooi +1
An analytic operator solution of a generalized quantum mechanical Hamiltonian of two-mode Bose Einstein condensates (BECs) is obtained and the same is used to investigate the noncl…
Phase-space interference of states optically truncated by quantum scissors: Generation of distinct superpositions of qudit coherent states by displacement of vacuum
Adam Miranowicz, Malgorzata Paprzycka, Anirban Pathak +1
Conventional Glauber coherent states (CS) can be defined in several equivalent ways, e.g., by displacing the vacuum or, explicitly, by their infinite Poissonian expansion in Fock s…
Wigner distribution, nonclassicality and decoherence of generalized and reciprocal binomial states
Anirban Pathak, J. Banerji
There are quantum states of light that can be expressed as finite superpositions of Fock states (FSFS). We demonstrate the nonclassicality of an arbitrary FSFS by means of its phas…
Bidirectional controlled teleportation by using 5-qubit states: A generalized view
Chitra Shukla, Anindita Banerjee, Anirban Pathak
Recently bidirectional controlled perfect teleportation using 5-qubit states are reported in (Int. J. Theor. Phys. (2013) DOI 10.1007/s10773-013-1484-8 and ibid, (2013) DOI 10.1007…