345 citations · 4k across the 75 of their papers we have counts for
76 papers
Reaching the Limits of Ground-State Metrology with Many-Body Probes
Erik L. André, Víctor Izquierdo, Ricard Puig +2
We investigate the physical requirements to reach the ultimate limits of ground-state metrology -- i.e., the estimation of an unknown parameter of an -body Hamiltonian via m…
Dynamical, thermal, and ground-state multiparameter quantum metrology: Fundamental limits and their attainability in magnetometry
Riccardo Pedroni, Víctor Izquierdo, Advay Burte +3
We consider the simultaneous estimation of multiple parameters in Hamiltonians of the form , where encodes the unknown parameters and $H…
Thermodynamic Networks: Harnessing Non-Equilibrium Steady States for Computation
Patryk Lipka-Bartosik, Gianmichele Blasi, Javier Lalueza Puértolas +3
We introduce thermodynamic networks, a general framework for autonomous, physics-based computation using non-equilibrium steady states. These networks are modeled as a collection o…
Energy-Time-Accuracy Tradeoffs in Thermodynamic Computing
Alberto Rolandi, Paolo Abiuso, Patryk Lipka-Bartosik +3
In the paradigm of thermodynamic computing, instead of behaving deterministically, hardware undergoes a stochastic process in order to sample from a distribution of interest. While…
Quantum sensing of a quantum field
Ricard Ravell Rodríguez, Martí Perarnau-Llobet, Pavel Sekatski
Estimating a classical parameter encoded in the Hamiltonian of a quantum probe is a fundamental and well-understood task in quantum metrology. A textbook example is the estimation…
The entropic coherence is a necessary resource for non-energy preserving gates
Riccardo Castellano, Vasco Cavina, Marti Perarnau-Llobet +2
We consider the task of implementing non-energy preserving gates (NEPG) on a finite-dimensional system S via an energy-preserving interaction with an external battery B. We prove t…
An information-theoretic proof of the Planckian bound for thermalization
Paolo Abiuso, Alberto Rolandi, John Calsamiglia +2
We demonstrate that quantum mechanics entails a fundamental lower bound on the thermalization time of any system. At finite temperature, we show that is bounded by half the…
Exact requirements for battery-assisted qubit gates
Riccardo Castellano, Vasco Cavina, Martí Perarnau-Llobet +2
We consider the implementation of a unitary gate on a qubit system S via a global energy-preserving operation acting on S and an auxiliary system B that can be seen as a battery. W…
Roadmap on Quantum Thermodynamics
Steve Campbell, Irene D'Amico, Mario A. Ciampini +66
The last two decades has seen quantum thermodynamics become a well established field of research in its own right. In that time, it has demonstrated a remarkably broad applicabilit…
Rapid optimal work extraction from a quantum-dot information engine
Kushagra Aggarwal, Alberto Rolandi, Yikai Yang +8
The conversion of thermal energy into work is usually more efficient in the slow-driving regime, where the power output is vanishingly small. Efficient work extraction for fast dri…
From dynamical to steady-state many-body metrology: Precision limits and their attainability with two-body interactions
Ricard Puig, Pavel Sekatski, Paolo Andrea Erdman +3
We consider the estimation of an unknown parameter via a many-body probe. The probe is initially prepared in a product state and many-body time-independent interactions enhance…
Thermodynamic Algorithms for Quadratic Programming
Patryk-Lipka Bartosik, Kaelan Donatella, Maxwell Aifer +4
Thermodynamic computing has emerged as a promising paradigm for accelerating computation by harnessing the thermalization properties of physical systems. This work introduces a nov…
Minimizing Dissipation via Interacting Environments: Quadratic Convergence to Landauer Bound
Patryk Lipka-Bartosik, Martí Perarnau-Llobet
We explore the fundamental limits on thermodynamic irreversibility when cooling a quantum system in the presence of a finite-size reservoir. First, we prove that for any non-intera…
Efficiently Cooling Quantum Systems with Finite Resources: Insights from Thermodynamic Geometry
Philip Taranto, Patryk Lipka-Bartosik, Nayeli A. Rodríguez-Briones +4
Landauer's limit on heat dissipation during information erasure is critical as devices shrink, requiring optimal pure-state preparation to minimise errors. However, Nernst's third…
Fundamental limits of metrology at thermal equilibrium
Paolo Abiuso, Pavel Sekatski, John Calsamiglia +1
We consider the estimation of an unknown parameter through a quantum probe at thermal equilibrium. The probe is assumed to be in a Gibbs state according to its Hamiltonian $H_θ…
Strongly coupled fermionic probe for nonequilibrium thermometry
Ricard Ravell Rodríguez, Mohammad Mehboudi, Michał Horodecki +1
We characterise the measurement sensitivity, quantified by the Quantum Fisher Information (QFI), of a single-fermionic thermometric probe strongly coupled to the sample of interest…
Thermodynamic Computing via Autonomous Quantum Thermal Machines
Patryk Lipka-Bartosik, Martí Perarnau-Llobet, Nicolas Brunner
We develop a physics-based model for classical computation based on autonomous quantum thermal machines. These machines consist of few interacting quantum bits (qubits) connected t…
Probe thermometry with continuous measurements
Julia Boeyens, Björn Annby-Andersson, Pharnam Bakhshinezhad +5
Temperature estimation plays a vital role across natural sciences. A standard approach is provided by probe thermometry, where a probe is brought into contact with the sample and e…
Collective advantages in finite-time thermodynamics
Alberto Rolandi, Paolo Abiuso, Martí Perarnau-Llobet
A central task in finite-time thermodynamics is to minimize the excess or dissipated work when manipulating the state of a system immersed in a thermal bath. We cons…
Quantum catalysis in cavity quantum electrodynamics
A. de Oliveira Junior, Martí Perarnau-Llobet, Nicolas Brunner +1
Catalysis plays a key role in many scientific areas, most notably in chemistry and biology. Here we present a catalytic process in a paradigmatic quantum optics setup, namely the J…
Energy measurements remain thermometrically optimal beyond weak coupling
Jonas Glatthard, Karen V. Hovhannisyan, Martí Perarnau-Llobet +2
We develop a general perturbative theory of finite-coupling quantum thermometry up to second order in probe-sample interaction. By assumption, the probe and sample are in thermal e…
Optimal control of dissipation and work fluctuations for rapidly driven systems
Alberto Rolandi, Martí Perarnau-Llobet, Harry J. D. Miller
To achieve efficient and reliable control of microscopic systems one should look for driving protocols that mitigate both the average dissipation and stochastic fluctuations in wor…
Critical quantum metrology assisted by real-time feedback control
Raffaele Salvia, Mohammad Mehboudi, Martí Perarnau-Llobet
We investigate critical quantum metrology,that is the estimation of parameters in many-body systems close to a quantum critical point, through the lens of Bayesian inference theory…
Finite-time Landauer principle beyond weak coupling
Alberto Rolandi, Martí Perarnau-Llobet
Landauer's principle gives a fundamental limit to the thermodynamic cost of erasing information. Its saturation requires a reversible isothermal process, and hence infinite time. W…