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A two-component Bose-Einstein condensate can 'bypass' the no-cloning theorem

ORAL

Abstract

No-cloning theorem in quantum cryptography prevents an eavesdropper from perfectly duplicating any arbitrary quantum state. Here we argue that a scheme for producing a two-component quantum superposition of Bose-Einstein condensates can, in principle, generate N bosonic clones of any single quantum state at large N thermodynamic limit and thus operationally 'bypass' the restrictions imposed by the above mentioned theorem. It is possible because the quantum statistical nature of this 'cloning operation' does not require the unitary evolution of standard quantum mechanics. Such operationally executable 'perfect' quantum cloning machine will significantly impact existing understanding of quantum cryptography and also that of relativity, in general, by allowing superluminal signaling.

Presenters

  • Shouvik Datta

    Indian Institute of Science Education and Research - Pune

Authors

  • Shouvik Datta

    Indian Institute of Science Education and Research - Pune