Quantum entanglement in nano bioorganic systems

Sougato Bose, G. S. Agarwal

We propose two schemes to establish entanglement between two mesoscopic quantum systems through a third mesoscopic quantum system. The first scheme entangles two nano-mechanical oscillators in a non-Gaussian entangled state through a Cooper-pair box (CPB). Entanglement detection of the nano-mechanical oscillators is equivalent to a teleportation experiment in a mesoscopic setting. The second scheme can entangle two CPB qubits through a nano-mechanical oscillator in the presence of arbitrarily strong decoherence.

Preet Sharma

Hanan Al-Shargi, Simon Berkovich

Sofia Olsson

This bachelor thesis on entanglement in nano systems includes a short presen-tation of the history of quantum mechanics before entanglement takes the spot light. A definition of entanglement will be stated as well as a prescription to quantify it for a pure system. The knowledge will then be used to quantify the entanglement for the ground state of few particle systems containing 2, 3 and 4 particles. The model that will be used is chosen to be as simple as possible, but it can still give a feeling of how the entropy behaves in these small systems. The few-particle systems can be compared to atoms in a molecule or quantum dots in a nano system.

Denis Tolkunov

Seyed Mahmoud Ashrafi, Hossein Dizajghorbani Aghdam, Rasoul Malekfar +1 more