4 papers
Experimental demonstration of genuine quantum information transmission through completely depolarizing channels in a superposition of cyclic orders
Yaxin Wang, Linxiang Zhou, Tianfeng Feng +6
A major challenge in quantum communication is addressing the negative effects of noise on channel capacity, especially for completely depolarizing channels, where information trans…
Locality Implies Complex Numbers in Quantum Mechanics
Tianfeng Feng, Changliang Ren, Vlatko Vedral
We show that the presented real-number quantum theories, compatible with the independent source assumption, require the inclusion of a nonlocal map. This means that if the independ…
Collapse-based models for gravity do not violate the entanglement-based witness of non-classicality
Tianfeng Feng, Vlatko Vedral, Chiara Marletto
It is known that an entanglement-based witness of non-classicality can be applied to testing quantum effects in gravity. Specifically, if a system can create entanglement between t…
Conservation Laws and the Non-Classicality of Gravity
Tianfeng Feng, Chiara Marletto, Vlatko Vedral
We analyze the interaction between quantum matter and classical objects through a general effective channel for hybrid dynamics, subject to the fundamental constraint that no quant…