10 papers
Generalized Nonlinear Imaginary-Time Evolution
Chenyu Shi, Hao Wang, Jin-Fu Chen
Imaginary-time evolution (ITE) is a powerful method for ground-state preparation of a given Hamiltonian. The normalized ITE can be viewed as a gradient flow of the energy expectati…
Optimizing and Certifying Multipartite Permutationally Invariant Bell Inequalities
Jin-Fu Chen, Mengyao Hu, Jordi Tura
Multipartite Bell nonlocality provides a device-independent probe of many-body quantum correlations, but its characterization is limited by the rapid growth of the underlying class…
Extending Covariant Fluctuation Theorems into Quantum Regime through Quasiprobability Approach
Ji-Hui Pei, Tingzhang Shi, Jin-Fu Chen +1
The covariant formulation of stochastic thermodynamics requires treating the stochastic work as a 4-vector, posing significant challenges for quantum systems due to the non-commuta…
Optimizing quantum violation for multipartite facet Bell inequalities
Jin-Fu Chen, Mengyao Hu, Jordi Tura
Nonlocality shapes quantum correlations, revealed through the violation of Bell inequalities. The intersection of all valid Bell inequalities is the so-called local polytope. In mu…
Boosting thermalization of classical and quantum many-body systems
Jin-Fu Chen, Kshiti Sneh Rai, Patrick Emonts +5
Understanding and optimizing the relaxation dynamics of many-body systems is essential both for foundational studies in quantum thermodynamics and for applications such as quantum…
Monitored quantum transport: full counting statistics of a quantum Hall interferometer
C. W. J. Beenakker, Jin-Fu Chen
We generalize the Levitov-Lesovik formula for the probability distribution function of the electron charge transferred through a phase coherent conductor, to include projective mea…