Experimentally faking the violation of Bell's inequalities |
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| Authors: | Gerhardt Ilja Liu Qin Lamas-Linares Antía Skaar Johannes Scarani Valerio Makarov Vadim Kurtsiefer Christian |
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| Institution: | Centre for Quantum Technologies, National University of Singapore, 3 Science Drive 2, Singapore 117543. |
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| Abstract: | Entanglement witnesses such as Bell inequalities are frequently used to prove the nonclassicality of a light source and its suitability for further tasks. By demonstrating Bell inequality violations using classical light in common experimental arrangements, we highlight why strict locality and efficiency conditions are not optional, particularly in security-related scenarios. |
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