We address the dynamics of entanglement and quantum discord for two noninteracting qubits initially prepared in a maximally entangled state and then subjected to a classical colored noise, i.e., coupled with an external environment characterized by a noise spectrum of the form 1/f α . More specifically, we address systems in which the Gaussian approximation fails, i.e., mere knowledge of the sp...

Lying at the heart of quantum mechanics, coherence has recently been studied as a key resource in quantum information theory. Quantum steering, a fundamental notion originally considered by Schödinger, has also recently received much attention. When Alice and Bob share a correlated quantum system, Alice can perform a local measurement to 'steer' Bob's reduced state. We introduce the maximal ste...

What is quantum? As researchers of quantum physics, we are constantly bombarded with attributes like “non-classical” and “super-classical”. We strive to track down the elusive quantum-classical boundary, to understand what makes quantum mechanics so powerful yet counter-intuitive. But to do this, we must first have a firm understanding of the classical world and the laws that classical mechanic...