Quantum Physics

A Hierarchy of Spectral Gap Certificates for Frustration-Free Spin Systems
Estimating spectral gaps of quantum many-body Hamiltonians is a highly challenging computational task, even under assumptions of …
Kshiti Sneh Rai, Ilya Kull, Patrick Emonts, Jordi Tura, Norbert Schuch, Flavio Baccari
Cite DOI arXiv
Boosting Thermalization of Classical and Quantum Many-Body Systems
Understanding and optimizing the relaxation dynamics of many-body systems is essential for both foundational studies in quantum …
Jin-Fu Chen, Kshiti Sneh Rai, Patrick Emonts, Donato Farina, Marcin Płodzień, Przemyslaw Grzybowski, Maciej Lewenstein, Jordi Tura
Cite DOI arXiv
Characterizing Translation-Invariant Bell Inequalities Using Tropical Algebra and Graph Polytopes
Nonlocality is one of the key features of quantum physics, which is revealed through the violation of a Bell inequality. In large …
Mengyao Hu, Eloïc Vallée, Tim Seynnaeve, Patrick Emonts, Jordi Tura
Cite DOI arXiv
Improved Nonlocality Certification via Bouncing between Bell Operators and Inequalities
Bell nonlocality is an intrinsic feature of quantum mechanics, which can be certified via the violation of Bell inequalities. It is …
Weikang Li, Mengyao Hu, Ke Wang, Shibo Xu, Zhide Lu, Jiachen Chen, Yaozu Wu, Chuanyu Zhang, Feitong Jin, Xuhao Zhu, Yu Gao, Zhengyi Cui, Aosai Zhang, Ning Wang, Yiren Zou, Fanhao Shen, Jiarun Zhong, Zehang Bao, Zitian Zhu, Pengfei Zhang, Hekang Li, Qiujiang Guo, Zhen Wang, Dong-Ling Deng, Chao Song, H. Wang, Patrick Emonts, Jordi Tura
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Luttinger Liquid Tensor Network: Sine versus Tangent Dispersion of Massless Dirac Fermions
To apply the powerful many-body techniques of tensor networks to massless Dirac fermions one wants to discretize the $pḑotsigma$ …
V. A. Zakharov, S. Polla, A. Donís Vela, P. Emonts, M. J. Pacholski, J. Tworzydło, C. W. J. Beenakker
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Probing Many-Body Bell Correlation Depth with Superconducting Qubits
Quantum nonlocality describes a stronger form of quantum correlation than that of entanglement. It refutes Einstein’s belief of …
Ke Wang, Weikang Li, Shibo Xu, Mengyao Hu, Jiachen Chen, Yaozu Wu, Chuanyu Zhang, Feitong Jin, Xuhao Zhu, Yu Gao, Ziqi Tan, Aosai Zhang, Ning Wang, Yiren Zou, Tingting Li, Fanhao Shen, Jiarun Zhong, Zehang Bao, Zitian Zhu, Zixuan Song, Jinfeng Deng, Hang Dong, Xu Zhang, Pengfei Zhang, Wenjie Jiang, Zhide Lu, Zheng-Zhi Sun, Hekang Li, Qiujiang Guo, Zhen Wang, Patrick Emonts, Jordi Tura, Chao Song, H. Wang, Dong-Ling Deng
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A Christmas Story about Quantum Teleportation
Quantum teleportation is a concept that fascinates and confuses many people, in particular, given that it combines quantum physics and …
Barry W. Fitzgerald, Patrick Emonts, Jordi Tura
Cite DOI arXiv
Effects of Topological Boundary Conditions on Bell Nonlocality
Bell nonlocality is the resource that enables device-independent quantum information processing tasks. It is revealed through the …
Patrick Emonts, Mengyao Hu, Albert Aloy, Jordi Tura
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Finding the Ground State of a Lattice Gauge Theory with Fermionic Tensor Networks: A $2+1d$ $Z_2$ Demonstration
Tensor network states, and in particular Projected Entangled Pair States (PEPS) have been a strong ansatz for the variational study of …
Patrick Emonts, Ariel Kelman, Umberto Borla, Sergej Moroz, Snir Gazit, Erez Zohar
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