126 citations · 515 across the 10 of their papers we have counts for
10 papers
A universal quantum rewinding protocol with an arbitrarily high probability of success
David Trillo, Benjamin Dive, Miguel Navascués
We present a universal mechanism that, acting on any target qubit, propagates it to the state it had T time units before the experiment started. This protocol works by setting the…
Demonstration of universal time-reversal for quantum processes
Peter Schiansky, Teodor Strömberg, David Trillo +4
Although the laws of classical physics are deterministic, thermodynamics gives rise to an arrow of time through irreversible processes. In quantum mechanics the unitary nature of t…
Contextuality in infinite one-dimensional translation-invariant local Hamiltonians: strengths and limits
Kaiyan Yang, Xiao Zeng, Yujing Luo +4
In recent years there has been a growing interest in treating many-body systems as Bell scenarios, where lattice sites play the role of distant parties and only near-neighbor stati…
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…
Optimized detection of high-dimensional entanglement
Xiao-Min Hu, Wen-Bo Xing, Yu Guo +9
Entanglement detection is one of the most conventional tasks in quantum information processing. While most experimental demonstrations of high-dimensional entanglement rely on fide…
A purification postulate for quantum mechanics with indefinite causal order
Mateus Araújo, Adrien Feix, Miguel Navascués +1
To study which are the most general causal structures which are compatible with local quantum mechanics, Oreshkov et al. introduced the notion of a process: a resource shared betwe…
Better local hidden variable models for two-qubit Werner states and an upper bound on the Grothendieck constant
Flavien Hirsch, Marco Túlio Quintino, Tamás Vértesi +2
We consider the problem of reproducing the correlations obtained by arbitrary local projective measurements on the two-qubit Werner state …
Nonlocality in sequential correlation scenarios
Rodrigo Gallego, Lars Erik Würflinger, Rafael Chaves +2
As first shown by Popescu [S. Popescu, Phys. Rev. Lett. 74, 2619 (1995)], some quantum states only reveal their nonlocality when subjected to a sequence of measurements while givin…
Physical characterization of quantum devices from nonlocal correlations
Jean-Daniel Bancal, Miguel Navascués, Valerio Scarani +2
In the device-independent approach to quantum information theory, quantum systems are regarded as black boxes which, given an input (the measurement setting), return an output (the…
Quantum Bell Inequalities from Macroscopic Locality
Tzyh Haur Yang, Miguel Navascués, Lana Sheridan +1
We propose a method to generate analytical quantum Bell inequalities based on the principle of Macroscopic Locality. By imposing locality over binary processings of virtual macrosc…