4 papers
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…
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…
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…
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…