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6 papers · 2 filters
Quantum limit for avian magnetoreception: How sensitive can a chemical compass be?
Jianming Cai, Filippo Caruso, Martin B. Plenio
The chemical compass model, based on radical pair reactions, is a fascinating idea to explain avian magnetoreception. At present, questions concerning the key ingredients responsib…
PT symmetry and spontaneous symmetry breaking in a microwave billiard
S. Bittner, B. Dietz, U. Guenther +4
We demonstrate the presence of parity-time (PT) symmetry for the non-Hermitian two-state Hamiltonian of a dissipative microwave billiard in the vicinity of an exceptional point (EP…
Long quantum channels for high-quality entanglement transfer
Leonardo Banchi, Tony John George Apollaro, Alessandro Cuccoli +2
High-quality quantum-state and entanglement transfer can be achieved in an unmodulated spin bus operating in the ballistic regime, which occurs when the endpoint qubits A and B are…
Propagation of non-classical correlations across a quantum spin chain
S. Campbell, T. J. G. Apollaro, C. Di Franco +5
We study the transport of quantum correlations across a chain of interacting spin-1/2 particles. As a quantitative figure of merit, we choose a symmetric version of quantum discord…
Initializing an unmodulated spin chain to operate as a high quality quantum data-bus
Abolfazl Bayat, Leonardo Banchi, Sougato Bose +1
We study the quality of state and entanglement transmission through quantum channels described by spin chains varying both the system parameters and the initial state of the channe…
Coherent open-loop optimal control of light-harvesting dynamics
Filippo Caruso, Simone Montangero, Tommaso Calarco +2
We apply theoretically open-loop quantum optimal control techniques to provide methods for the verification of various quantum coherent transport mechanisms in natural and artifici…