Quantum Energy Teleportation with Electromagnetic Field: Discrete vs. Continuous Variables
arXiv:0908.2674 · doi:10.1088/1751-8113/43/10/105305
Abstract
It is well known that usual quantum teleportation protocols cannot transport energy. Recently, new protocols called quantum energy teleportation (QET) have been proposed, which transport energy by local operations and classical communication with the ground states of many-body quantum systems. In this paper, we compare two different QET protocols for transporting energy with electromagnetic field. In the first protocol, a 1/2 spin (a qubit) is coupled with the quantum fluctuation in the vacuum state and measured in order to obtain one-bit information about the fluctuation for the teleportation. In the second protocol, a harmonic oscillator is coupled with the fluctuation and measured in order to obtain continuous-variable information about the fluctuation. In the spin protocol, the amount of teleported energy is suppressed by an exponential damping factor when the amount of input energy increases. This suppression factor becomes power damping in the case of the harmonic oscillator protocol. Therefore, it is concluded that obtaining more information about the quantum fluctuation leads to teleporting more energy. This result suggests a profound relationship between energy and quantum information.
24 pages, 4 figures, to be published in Journal of Physics A: Mathematical and Theoretical
References in corpus (8)
- Minimal Energy Cost for Thermodynamic Information Processing: Measurement and Information Erasure
- Quantum Measurement Information as a key to Energy Release from Local Vacuums
- Quantum Energy Teleportation in Spin Chain Systems
- A Protocol for Quantum Energy Distribution
- Controlled Hawking Process by Quantum Energy Teleportation
- Quantum Energy Teleportation with Trapped Ions
- A Fundamental Lower Bound of Actuating Energy for Broadband Photon Switching
- Energy Density-Flux Correlations in an Unusual Quantum State and in the Vacuum
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