The science of quantum information has arisen over the last two decades centered on the
manipulation of individual quanta of information, known as quantum bits or qubits. Quantum …

A few decades ago, quantum optics stood out as a new domain of physics by exhibiting
states of light with no classical equivalent. The first investigations concerned single photons …

Quantum Continuous Variables introduces the theory of continuous variable quantum
systems, from its foundations based on the framework of Gaussian states to modern …

Quantum communications promises reliable transmission of quantum information, efficient
distribution of entanglement and generation of completely secure keys. For all these tasks …

Gaussian states have played an important role in the physics of continuous-variable
quantum systems. They are appealing for the experimental ease with which they can be …

The study of Gaussian states has arisen to a privileged position in continuous variable
quantum information in recent years. This is due to vehemently pursued experimental …

Written by one of the founding fathers of Quantum Information, this book gives an accessible
(albeit mathematically rigorous), self-contained introduction to quantum information theory …

Motivated by holographic complexity proposals as novel probes of black hole spacetimes,
we explore circuit complexity for thermofield double (TFD) states in free scalar quantum field …

A bstract We study circuit complexity for free fermionic field theories and Gaussian states.
Our definition of circuit complexity is based on the notion of geodesic distance on the Lie …

We review the theory of entanglement measures, concentrating mostly on the finite
dimensional two-party case. Topics covered include: single-copy and asymptotic …