Efficiency versus speed in quantum heat engines: Rigorous constraint from Lieb-Robinson bound
نویسندگان
چکیده
منابع مشابه
Lieb-Robinson bound and locality for general markovian quantum dynamics.
The Lieb-Robinson bound shows the existence of a maximum speed of signal propagation in discrete quantum mechanical systems with local interactions. This generalizes the concept of relativistic causality beyond field theory, and provides a powerful tool in theoretical condensed matter physics and quantum information science. Here, we extend the scope of this seminal result by considering genera...
متن کاملLieb-Robinson Bounds and Locality in Quantum Systems
In quantum lattice systems with local interactions, the Lieb-Robinson bounds serve as an upper limit on the speed at which information can propagate. They can be naturally interpreted in terms of an “effective light cone”, where the information that leaks out to space-like separated regions is small. We highlight the content of the theorem originally due to Lieb and Robinson, and conclude by di...
متن کاملLieb-Robinson Bounds in Quantum Many-Body Physics
We give an overview of recent results on Lieb-Robinson bounds and some of their applications in the study of quantum many-body models in condensed matter physics.
متن کاملRényi entropy flows from quantum heat engines
We evaluate Rényi entropy flows from generic quantum heat engines (QHE) to a weakly coupled probe environment kept in thermal equilibrium. We show that the flows are determined not only by heat flow but also by a quantum coherent flow that can be separately measured in experiment apart from the heat flow measurement. The same pertains to Shannon entropy flow. This appeals for a revision of the ...
متن کاملLieb-Robinson bounds and the speed of light from topological order.
We apply the Lieb-Robinson bounds technique to find the maximum speed of interaction in a spin model with topological order whose low-energy effective theory describes light [see X.-G. Wen, Phys. Rev. B 68, 115413 (2003)10.1103/PhysRevB.68.115413]. The maximum speed of interactions in two dimensions is bounded from above by less than e times the speed of emerging light, giving a strong indicati...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review E
سال: 2017
ISSN: 2470-0045,2470-0053
DOI: 10.1103/physreve.96.022138