• Corpus ID: 235790553

Experimental nonequilibrium memory erasure beyond Landauer's bound

@inproceedings{Ciampini2021ExperimentalNM,
  title={Experimental nonequilibrium memory erasure beyond Landauer's bound},
  author={Mario Arnolfo Ciampini and Tobias G. Wenzl and Michael Konopik and Gregor Thalhammer and Markus Aspelmeyer and Eric Lutz and Nikolai Kiesel},
  year={2021}
}
Mario A. Ciampini, Tobias Wenzl, Michael Konopik, Gregor Thalhammer, Markus Aspelmeyer, 4 Eric Lutz, and Nikolai Kiesel Vienna Center for Quantum Science and Technology (VCQ), Faculty of Physics, University of Vienna, A-1090 Vienna, Austria Institute for Theoretical Physics I, University of Stuttgart, D-70550 Stuttgart, Germany Division for Biomedical Physics, Medical University of Innsbruck, 6020 Innsbruck, Austria Institute for Quantum Optics and Quantum Information (IQOQI), Austrian Academy… 

Figures and Tables from this paper

Levitodynamics: Levitation and control of microscopic objects in vacuum
TLDR
An overview of the status, challenges, and prospects of levitodynamics, the mutidisciplinary research area that focuses on the understanding and control of optical trapping of microparticles and nanoparticles in vacuum, is provided, with the goal of eventually using such levitated particles as ultrasensitive probes for sensing applications.

References

SHOWING 1-10 OF 39 REFERENCES
Nonequilibrium information erasure below kTln2
Landauer's principle states that information erasure requires heat dissipation. While Landauer's original result focused on equilibrium memories, we here investigate the reset of information stored
Landauer's Erasure Principle in a Squeezed Thermal Memory.
TLDR
A minimalist mechanical model of a one-bit memory operating with squeezed thermal states is proposed and it is shown that the Landauer energy bound is exponentially lowered with increasing squeezing factor.
Erasure without Work in an Asymmetric Double-Well Potential.
TLDR
Surprisingly, erasure protocols that differ subtly give measurably different values for the asymptotic work, a result that helps clarify the distinctions between thermodynamic and logical reversibility.
Information and Thermodynamics: Fast and Precise Approach to Landauer's Bound in an Underdamped Micromechanical Oscillator.
TLDR
The Landauer bound is reached with a 1% uncertainty, with protocols as short as 100 ms, using as one-bit memory an underdamped micromechanical oscillator confined in a double-well potential created by a feedback loop.
Motional Sideband Asymmetry of a Nanoparticle Optically Levitated in Free Space.
TLDR
This work optically traps a dielectric particle at ambient temperature in ultrahigh vacuum and applies active feedback cooling to its center-of-mass motion, and measures an asymmetry between the Stokes and anti-Stokes sidebands of photons scattered by the levitated particle, which is a signature of the particle's quantum ground state of motion.
Analysis of Heat Dissipation and Reliability in Information Erasure: A Gaussian Mixture Approach
This article analyzes the effect of imperfections in physically realizable memory. Motivated by the realization of a bit as a Brownian particle within a double well potential, we investigate the
Zero and negative energy dissipation at information-theoretic erasure
TLDR
A new non-volatile, charge-based memory scheme wherein the erasure can be associated with even negative energy dissipation; this implies that the memory’s environment is cooled during information erasure and contradicts Landauer's principle of erasure dissipation.
Experimental verification of Landauer’s principle linking information and thermodynamics
TLDR
It is established that the mean dissipated heat saturates at the Landauer bound in the limit of long erasure cycles, demonstrating the intimate link between information theory and thermodynamics and highlighting the ultimate physical limit of irreversible computation.
Beating the Landauer's limit by trading energy with uncertainty
TLDR
It is shown that in a nanoscale switch, operated at finite temperature T, this limit can be beaten by trading the dissipated energy with the uncertainty in the distinguishability of switch logic states.
Escape dynamics of active particles in multistable potentials
TLDR
This work introduces activity by applying an engineered stochastic force that emulates self-propulsion and reveals the existence of an optimal correlation time that maximises the transition rate of an active particles trapped in a bistable potential.
...
...