I would like to advertise our latest paper, published on Phys. Rev. Lett. on the relation between Thermodynamic Uncertainty Relations and Fluctuation theorems. This paper is a collaboration between myself, from IFUSP, Prof. André Timpanaro from UFABC and Dr. Giacomo Guarnieri and Prof. John Goold, from Trinity College, Dublin.
A. M. Timpanaro, G. Guarnieri, J. Goold, G. T. Landi, “Thermodynamic uncertainty relations from exchange fluctuation theorems.” Physical Review Letters, 123, 090604 (2019).
Nanoscaled engines and related devices can be prone to significant thermal and quantum fluctuations Recently, fundamental relations in thermodynamics have been discovered, called “thermodynamic uncertainty relations” (TURs). They provide universal bounds on the fluctuations of any current and relate them to the systems entropy production rate. In physical terms, this implies that the less noisy one wants a thermal machine to be, then the more one has to pay in dissipated heat. This has generated a new field known as thermodynamics of precision, which has implications in design of heat engines, biomolecular and even in the determining the accuracy of biological clocks.
TURs were initially thought to be a consequence of classical markovian dynamics, but here in this work we show that they are actually a consequence of the most refined version of the second law of thermodynamics, i.e. the fluctuation theorems. The discovery and experimental confirmation of fluctuation theorems has inspired a new microscopic description of quantum and classical thermodynamics which goes well beyond the regime of linear response and is a promising route to understand the thermodynamics of small quantum systems operating under non-equilibrium conditions.
In our paper we specifically focus on the class of fluctuation theorems known as exchange fluctuation theorems and derive the tightest TUR possible under these conditions. Our results both in the classical and quantum mechanical domain. Our paper shows how the notion of precision applies to a much larger class of physical systems than originally anticipated. We therefore expect that our findings will help understanding and controlling the next generation of nano-scale heat engines.
Check out the latest paper by Cleverson Cherubim and Prof. Frederico Brito in collaboration with Prof. Sebastian Deffner, on the implementation of a non-thermal quantum heat engine using superconducting qubits.
This work appeared as part of the specia issue of Entropy on Nonequilibrium Thermodynamics.
I’m here to publicize our latest paper, which was accepted on Quantum, on a resource theory for Maxwell’s demon’s:
We show that the set of resourceful states can be partitioned into 9 irreducible subsets, each with well defined (although not monotonic) temperatures. This, as we discuss, has dramatic consequences for Landauer’s principle.
Hope you enjoy!
All the best,
We would like to advertise the workshop Emergent platforms for quantum information processing, that will take place at IFUSP-São Paulo between April 15-17 of 2019. The focus of the workshop will be on experimentalists from Brazil working in quantum information processing platforms. Our goal is that this workshop serve as an opportunity for getting together and discussing the advantages, limitations and prospects. We hope, with this, to call attention to the community in Brazil to the importance of experimental quantum information sciences.
The event’s official website is: http://www.fmt.if.usp.br/~platform/
The conference program will be available soon.
Organizers: Gabriel T. Landi (IFUSP), Luis Gregório Dias (IFUSP), Frederico Borges Brito (IFSC).
Anyone interested in participating is more than welcome to join. For more information contact Gabriel Landi at firstname.lastname@example.org.
Confirmed speakers include:
– Rafael Rothganger Paiva – UFABC
– Francisco Rouxinol – Unicamp
– Daniel Felinto – UFPE
– Sergio Muniz – IFSC-USP
– Thiago Alegre – Unicamp
– Stephen Walborn – UFRJ
– Ivan Oliveira – CBPF
– Paulo Henrique Souto Ribeiro – UFSC
– Roberto Serra – UFABC
– Renne Araújo – UFSC
– Daniel Tasca – UFF
– Pierre Luis de Assis – Unicamp
– Breno Marques – UFABC
– Maria Carolina Aguiar – UFMG
– Gustavo Wiederhecker – Unicamp
– Felipe Barbosa – Unicamp
– Thereza Paiva – UFRJ
Prof. Valerio Scarani from the CQT in Singapore is currently announcing an open post-doc position to work in Quantum Thermodynamics and related topics.
More information can be found in
The Quantum Optics Lab @ the University of Warsaw currently has open positions for PhD students and post-docs. The position is within the “Spatiotemporal photon correlation measurements for quantum metrology and super-resolution microscopy” project, funded by the First Team programme of the Foundation for Polish Science.
More information can be found in
Prof. Cecilia Cormick, from the University of Cordoba, will teach a mini-course on Quantum Optics @ IFUSP, between Feb 12 and 14. Anyone interested is welcome to join. More information can be found in