287 citations · 1.7k across the 25 of their papers we have counts for
22 papers · 1 filter
Certifying randomness in quantum state collapse
Liang-Liang Sun, Xingjian Zhang, Xiang Zhou +4
The unpredictable process of state collapse caused by quantum measurements makes the generation of quantum randomness possible. In this paper, we explore the quantitive connection…
Recycling nonlocality in a quantum network
Ya-Li Mao, Zheng-Da Li, Anna Steffinlongo +6
It has recently been discovered that the nonlocality of an entangled qubit pair can be recycled for several Bell experiments. Here, we go beyond standard Bell scenarios and investi…
Test of Genuine Multipartite Nonlocality
Ya-Li Mao, Zheng-Da Li, Sixia Yu +1
While Bell nonlocality of a bipartite system is counter-intuitive, multipartite nonlocality in our many-body world turns out to be even more so. Recent theoretical study reveals in…
Testing real quantum theory in an optical quantum network
Zheng-Da Li, Ya-Li Mao, Mirjam Weilenmann +12
Quantum theory is commonly formulated in complex Hilbert spaces. However, the question of whether complex numbers need to be given a fundamental role in the theory has been debated…
Device-Independent-Quantum-Randomness-Enhanced Zero-Knowledge Proof
Cheng-Long Li, Kai-Yi Zhang, Xingjian Zhang +15
Zero-knowledge proof (ZKP) is a fundamental cryptographic primitive that allows a prover to convince a verifier of the validity of a statement without leaking any further informati…
Photonic verification of device-independent quantum key distribution against collective attacks
Wen-Zhao Liu, Yu-Zhe Zhang, Yi-Zheng Zhen +6
In this paper, we employ theoretical and experimental efforts and realize a proof-of-principle verification of device-independent QKD based on the photonic setup. On the theoretica…
Field demonstration of distributed quantum sensing without post-selection
Si-Ran Zhao, Yu-Zhe Zhang, Wen-Zhao Liu +12
Distributed quantum sensing can provide quantum-enhanced sensitivity beyond the shot-noise limit (SNL) for sensing spatially distributed parameters. To date, distributed quantum se…
Device-independent randomness expansion against quantum side information
Wen-Zhao Liu, Ming-Han Li, Sammy Ragy +9
The ability to produce random numbers that are unknown to any outside party is crucial for many applications. Device-independent randomness generation does not require trusted devi…
Error-Disturbance Trade-off in Sequential Quantum Measurements
Ya-Li Mao, Zhi-Hao Ma, Rui-Bo Jin +5
We derive a state dependent error-disturbance trade-off based on a statistical distance in the sequential measurements of a pair of noncommutative observables and experimentally ve…
Experimental Realization of Device-Independent Quantum Randomness Expansion
Ming-Han Li, Xingjian Zhang, Wen-Zhao Liu +12
Randomness expansion where one generates a longer sequence of random numbers from a short one is viable in quantum mechanics but not allowed classically. Device-independent quantum…
Testing Local Realism into the Past without Detection and Locality Loopholes
Ming-Han Li, Cheng Wu, Yanbao Zhang +16
Inspired by the recent remarkable progress in the experimental test of local realism, we report here such a test that achieves an efficiency greater than (78%)^2 for entangled phot…
Device independent quantum random number generation
Yang Liu, Qi Zhao, Ming-Han Li +16
Randomness is critical for many information processing applications, including numerical modeling and cryptography. Device-independent quantum random number generation (DIQRNG) bas…
Experimental test of measurement dependent local Bell inequality with human free will
Yang Liu, Xiao Yuan, Cheng Wu +14
A Bell test can rule out local realistic models, and has potential applications in communications and information tasks. For example, a Bell inequality violation can certify the pr…
Experimental demonstration of nonbilocality with truly independent sources and strict locality constraints
Qi-Chao Sun, Yang-Fan Jiang, Bing Bai +10
Entanglement swapping entangles two particles that have never interacted[1], which implicitly assumes that each particle carries an independent local hidden variable, i.e., the pre…
High speed self-testing quantum random number generation without detection loophole
Yang Liu, Xiao Yuan, Ming-Han Li +17
Quantum mechanics provides means of generating genuine randomness that is impossible with deterministic classical processes. Remarkably, the unpredictability of randomness can be c…
Field test of entanglement swapping over 100-km optical fiber with independent 1-GHz-clock sequential time-bin entangled photon-pair sources
Qi-Chao Sun, Yang-Fan Jiang, Ya-li Mao +12
Realizing long distance entanglement swapping with independent sources in the real-world condition is important for both future quantum network and fundamental study of quantum the…
Random number generation with cosmic photons
Cheng Wu, Bing Bai, Yang Liu +14
Random numbers are indispensable for a variety of applications ranging from testing physics foundation to information encryption. In particular, nonlocality tests provide a strong…
Experimental quantum data locking
Yang Liu, Zhu Cao, Cheng Wu +13
Classical correlation can be locked via quantum means--quantum data locking. With a short secret key, one can lock an exponentially large amount of information, in order to make it…
Quantum teleportation with independent sources over an optical fibre network
QiChao Sun, YaLi Mao, Sijing Chen +15
Quantum teleportation faithfully transfers a quantum state between distant nodes in a network, enabling revolutionary information processing applications. Here we report teleportin…
Experimental Bounds on Classical Random Field Theories
Joffrey K. Peters, Jingyun Fan, Alan L. Migdall +1
Alternative theories to quantum mechanics motivate important fundamental tests of our understanding and descriptions of the smallest physical systems. Here, using spontaneous param…
Mode expansion and Bragg filtering enable a high-fidelity fiber-based photon-pair source
Alexander Ling, Jun Chen, Jingyun Fan +1
We report the development of a fiber-based single spatial mode source of photon-pairs where the efficiency of extracting photon-pairs is improved over a previous source [18] throug…
Resolution and sensitivity of a Fabry-Perot interferometer with a photon-number-resolving detector
Christoph F. Wildfeuer, Aaron J. Pearlman, Jun Chen +3
With photon-number resolving detectors, we show compression of interference fringes with increasing photon numbers for a Fabry-Perot interferometer. This feature provides a higher…