56 citations · 115 across the 6 of their papers we have counts for
5 papers · 1 filter
Strong micro-macro entanglement from a weak cross-Kerr nonlinearity
Tian Wang, Hon Wai Lau, Hamidreza Kaviani +2
We study the entanglement generated by a weak cross-Kerr nonlinearity between two initial coherent states, one of which has an amplitude close to the single-photon level, while the…
Is the Preferred Basis selected by the environment?
Tian Wang, David Hobill
We show that in a quantum measurement, the preferred basis is determined by the interaction between the apparatus and the quantum system, instead of by the environment. This intera…
Proposal for the Creation and Optical Detection of Spin Cat States in Bose-Einstein Condensates
Hon Wai Lau, Zachary Dutton, Tian Wang +1
We propose a method to create "spin cat states", i.e. macroscopic superpositions of coherent spin states, in Bose-Einstein condensates using the Kerr nonlinearity due to atomic col…
Can coarse measurements reveal macroscopic quantum effects?
Tian Wang, Roohollah Ghobadi, Sadegh Raeisi +1
It has recently been conjectured that detecting quantum effects such as superposition or entanglement for macroscopic systems always requires high measurement precision. Analyzing…
Demonstrating macroscopic entanglement based on Kerr non-linearities requires extreme phase resolution
Roohollah Ghobadi, Sadegh Raeisi, Christoph Simon
Entangled coherent states, which can in principle be created using strong Kerr non-linearities, allow the violation of Bell inequalities for very coarse-grained measurements. This…