Indistinguishability of Elementary Systems as a Resource for Quantum Information Processing

Local information as a resource in distributed quantum systems.

A new paradigm for distributed quantum systems where information is a valuable resource is developed. After finding a unique measure for information, we construct a scheme for its manipulation in analogy with entanglement theory. In this scheme, instead of maximally entangled states, two parties distill local states. We show that, surprisingly, the main tools of entanglement theory are general ...

Quantum information processing: A linear-systems perspective

In this paper a system-oriented formalism of Quantum Information Processing is presented. Its form resembles that of standard signal processing, although further complexity is added in order to describe pure quantum-mechanical effects and operations. Examples of the application of the formalism to quantum time evolution and quantum measurement are given.

Information Content of Elementary Systems as a Physical Principle

To explain conceptual gap between classical/quantum and other, hypothetical descriptions of world, several principles has been proposed. So far, all these principles have not involved uncertainty concept. Here we introduce an information content principle (ICP) which represents the new-constrained uncertainty principle. The principle, by taking into account the encoding/decoding properties of p...

The Role of Indistinguishability of Identical Particles in Quantum Information Processing

Quantum Information Processing in Multi-Spin Systems

Coherence and entanglement in multi-spin systems are valuable resources for quantum information processing. In this thesis, I explore the manipulation of quantum information in complex multi-spin systems, with particular reference to Nuclear Magnetic Resonance implementations. In systems with a few spins, such as molecules in the liquid phase, the use of multi-spin coherent states provides a he...