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## landauer

Use the Landauer limit to calculate my program's entropy.

## TOC »

### Landauer's principle

Landauer's principle states that every irreversible operation produces entropy; erasing one bit, for instance, generates at least *kT* ln 2 J of heat.

We can use Landauer's principle to calculate a lower-bound on the energy released by our program, given some number of bit-operations.

### Documentation

`landauer`

**[module]** `landauer`

The Landauer module contains contains some constants, parameters and procedures for calculating a lower-bound on the heat-dissipation of programs.

k

`k`constantThe Boltzmann constant

(define k 1.38e-23)

room-temperature

`room-temperature`parameterRoom temperature in K

(define room-temperature (make-parameter 298.15))

heat

`heat``operations`procedureCalculate a lower-bound on the heat dissipated by some number of irreversible bit-operations.

Room-temperature is governed by the room-temperature parameter.

`operations`- The number of irreversible bit-operations

(define (heat operations) (* operations k (room-temperature) (log 2)))

### About this egg

#### Author

#### Repository

https://github.com/klutometis/landauer

#### License

BSD

#### Dependencies

#### Versions

#### Colophon

Documented by hahn.