Quantum communication with Gaussian channels of zero quantum capacity

Quantum superadditivity in linear optics networks: Sending bits via multiple-access Gaussian channels

(2010) Ł. Czekaj et al.   PHYSICAL REVIEW A

Superadditivity of communication capacity using entangled inputs

(2009) M. B. Hastings   Nature Physics

Purely Quantum Superadditivity of Classical Capacities of Quantum Multiple Access Channels

(2009) Lukasz Czekaj et al.   PHYSICAL REVIEW LETTERS

Extensive Nonadditivity of Privacy

(2009) Graeme Smith et al.   PHYSICAL REVIEW LETTERS

Private Capacity of Quantum Channels is Not Additive

(2009) Ke Li et al.   PHYSICAL REVIEW LETTERS

Continuous-variable quantum cryptography using two-way quantum communication

(2008) Stefano Pirandola et al.   Nature Physics

Observation of Squeezed Light with 10-dB Quantum-Noise Reduction

(2008) Henning Vahlbruch et al.   PHYSICAL REVIEW LETTERS

Quantum Communication with Zero-Capacity Channels

(2008) G. Smith et al.   SCIENCE