16 citations
7 papers
Hamiltonian Thresholds for Objective Records
Jie Gu
Classical objectivity requires an environment to witness a pointer value, not merely to decohere it. We derive microscopic Hamiltonian laws for this distinction. Exact QND product…
Comment on "Extension of the adiabatic theorem"
Jie Gu
Phys. Rev. B 113, 165102 (2026) proposed the conjecture that, for quantum quenches within the same phase, the overlap between the initial ground state and postquench eigenstates is…
Dynamical activity universally bounds precision of response in Markovian nonequilibrium systems
Kangqiao Liu, Jie Gu
The exploration of far-from-equilibrium systems has been at the forefront of nonequilibrium thermodynamics, with a particular focus on understanding the fluctuations and response o…
Thermodynamic bounds on the asymmetry of cross-correlations with dynamical activity and entropy production
Jie Gu
Entropy production and dynamical activity are two complementary aspects in nonequilibrium physics. The asymmetry of cross-correlation, serving as a distinctive feature of nonequili…
Speed limit, dissipation bound and dissipation-time trade-off in thermal relaxation processes
Jie Gu
We investigate bounds on speed, non-adiabatic entropy production and trade-off relation between them for classical stochastic processes with time-independent transition rates. Our…
Geometric Floquet Condition for Quantum Adiabaticity
Jie Gu, X. -G. Zhang
Quantum adiabaticity is the evolution of a quantum system that remains close to an instantaneous eigenstate of a time-dependent Hamiltonian. Using Floquet formalism, we derive a ri…