activity
20002020
most citedThe fundamental limit on the rate of quantum dynamics: the unified bound is tight

312 citations · 350 across the 14 of their papers we have counts for

collaborators

14 papers

quant-ph2020

Quantum Mechanics as Naturalized Time

Zachary D. Walton, Bernard S. McNamara, Tommaso Toffoli

We bring together two topics (quantum mechanics and time passage) with the goal of clarifying questions about each. Specifically, we claim that the formalism of quantum mechanics p…

physics.gen-ph2017★ 8 cited

Entropy? Honest!

Tommaso Toffoli

Here we deconstruct, and then in a reasoned way reconstruct, the concept of "entropy of a system," paying particular attention to where the randomness may be coming from. We start…

quant-ph2014

A quantum limit on the information retrievable from an image

Lev B Levitin, Tommaso Toffoli

We consider the physical limitations imposed on the information content of an image by the wave and quantum nature of light, when the image is obtained by illuminating a reflecting…

nlin.CG2011

Can anything from Noether's theorem be salvaged for discrete dynamical systems?

Silvio Capobianco, Tommaso Toffoli

The dynamics of a physical system is linked to its phase-space geometry by Noether's theorem, which holds under standard hypotheses including continuity. Does an analogous theorem…

quant-ph2011★ 4 cited

Heat-to-work conversion by exploiting full or partial correlations of quantum particles

Lev B Levitin, Tommaso Toffoli

It is shown how information contained in the pairwise correlations (in general, partial) between atoms of a gas can be used to completely convert heat taken from a thermostat into…

quant-ph2009★ 312 cited

The fundamental limit on the rate of quantum dynamics: the unified bound is tight

Lev B. Levitin, Tommaso Toffoli

The question of how fast a quantum state can evolve has attracted a considerable attention in connection with quantum measurement, metrology, and information processing. Since only…