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Proposal for a quantum delayed-choice experiment.
This work proposes a framework to analyze quantum-controlled experiments and illustrates it by discussing a quantum version of Wheeler's delayed-choice experiment, showing that a photon can have a morphing behavior between particle and wave.
Quantum entropy and special relativity.
We consider a single free spin- 1 / 2 particle. The reduced density matrix for its spin is not covariant under Lorentz transformations. The spin entropy is not a relativistic scalar and has no
Quantum Information and Relativity Theory
Quantum mechanics, information theory, and relativity theory are the basic foundations of theoretical physics. The acquisition of information from a quantum system is the interface of classical and
Optimal distinction between non-orthogonal quantum states
Given a finite set of linearly independent quantum states, an observer who examines a single quantum system may sometimes identify its state with certainty. However, unless these quantum states are
Dynamics beyond completely positive maps : some properties and applications
Maps that are not completely positive (CP) are often useful to describe the dynamics of open systems. An apparent violation of complete positivity can occur because there are prior correlations of
Is wave–particle objectivity compatible with determinism and locality?
An entanglement-assisted version of the quantum delayed-choice experiment is studied and it is shown that the extension of HV to the controlling devices only exacerbates the contradiction.
Reconstructing quantum geometry from quantum information: Area renormalisation, coarse-graining and entanglement on spin networks
After a brief review of spin networks and their interpretation as wave functions for the (space) geometry, we discuss the renormalisation of the area operator in loop quantum gravity. In such a
Introduction to relativistic quantum information
I discuss the role that relativistic considerations play in quantum information processing. First I describe how the causality requirements limit possible multi-partite measurements. Then the Lorentz
Hybrid classical-quantum dynamics
A hybrid formalism is proposed for interacting classical and quantum sytems. This formalism is mathematically consistent and reduces to standard classical and quantum mechanics in the case of no