Abstract: The Bloch sphere is a generic picture describing the coherent dynamics of coupled classical or quantum-mechanical twolevel systems under the control of electromagnetic fields1,2. It is comm...
Abstract: All evidence so far suggests that the absolute spatial orientation of an experiment never affects its outcome. This is reflected in the standard model of particle physics by requiring all p...
Abstract: The key to explaining and controlling a range of quantum phenomena is to study how information propagates around many-body systems. Quantum dynamics can be described by particle-like carrie...
Abstract: Quantumentanglement is the central resource behindquantum information science, from quantum computation and simulation1,2 to enhanced metrology3 and secure communication1. These application...
Abstract: With the advent of quantum information, the violation of a Bell inequality is used to witness the absence of an eavesdropper in cryptographic scenarios such as key distribution and randomne...
Abstract: We introduce the notion of quantum Markov decision process (qMDP) as a semantic model of nondeterministic and concurrent quantum programs. It is shown by examples that qMDPs can be used in ...