• Corpus ID: 64028184

Fundamental energy requirements of information processing and transmission

  title={Fundamental energy requirements of information processing and transmission},
  author={Daniel Angley},
This thesis investigates fundamental limits on the energy required to process and transmit information. By combining physical laws, such as the second law of thermodynamics, with information theory, we present novel limits on the e ciency of systems that track objects, perform stochastic control, switch communication systems and communicate information. This approach yields results that apply regardless of how the system is constructed. While the energy required to perform an ideal measurement… 



Information and Entropy Flow in the Kalman–Bucy Filter

We investigate the information theoretic properties of Kalman–Bucy filters in continuous time, developing notions of information supply, storage and dissipation. Introducing a concept of energy, we

The thermodynamics of computation—a review

Computers may be thought of as engines for transforming free energy into waste heat and mathematical work. Existing electronic computers dissipate energy vastly in excess of the mean thermal

The physical nature of information

Experimental verification of Landauer’s principle linking information and thermodynamics

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.

Minimal Energy Requirements in Communication

Alternative communication methods are proposed to show that there is no unavoidable minimal energy requirement per transmitted bit.

Algorithmic randomness, physical entropy, measurements, and the demon of choice

It is shown that the second law of thermodynamics is not vulnerable to the designs of the demon of choice, a selective version of Maxwell's demon who cannot operate without recording whether its measurement was a success or a failure.

Heat generation required by information erasure.

  • Shizume
  • Physics
    Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics
  • 1995
A basic model of the memory is dealt with, a system including a particle making the Brownian motion in a time-dependent potential well, and it is shown that Landauer's claim holds rigorously if the random force acting on the particle is white and Gaussian, even if the potential is not static.

Ultimate physical limits to computation

The physical limits of computation as determined by the speed of light c, the quantum scale ℏ and the gravitational constant G are explored.

Energy requirements in communication

It is shown, through counterexamples, that there is no minimal dissipation per transmitted bit.

The Fundamental Physical Limits of Computation.

One of us has shown that it is possi­ ble to build a reversible Turing machine, for Alan M. Turing's device can per­ form any computation that can be per­ formed by a modern computer.