# Bosons outperform fermions: The thermodynamic advantage of symmetry.

@article{Myers2020BosonsOF, title={Bosons outperform fermions: The thermodynamic advantage of symmetry.}, author={Nathan M. Myers and Sebastian Deffner}, journal={Physical review. E}, year={2020}, volume={101 1-1}, pages={ 012110 } }

We examine a quantum Otto engine with a harmonic working medium consisting of two particles to explore the use of wave function symmetry as an accessible resource. It is shown that the bosonic system displays enhanced performance when compared to two independent single particle engines, while the fermionic system displays reduced performance. To this end, we explore the trade-off between efficiency and power output and the parameter regimes under which the system functions as engine…

## 23 Citations

### Quantum Heat Engines with Singular Interactions

- PhysicsSymmetry
- 2021

Using wave function symmetry as a resource to enhance the performance of a quantum Otto engine is examined by incorporating a singular interaction that allows the effective symmetry to be tuned between the bosonic and fermionic limits.

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It is shown that quantum statistical effects can give rise to a genuine quantum enhancement of the collective thermodynamic performance when multiple indistinguishable bosonic work resources are coupled to an external system.

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### Thermodynamics of Statistical Anyons

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- 2021

In low-dimensional systems, indistinguishable particles can display statistics that interpolate between bosons and fermions. Signatures of these “anyons” have been detected in two-dimensional…

### Spins-based Quantum Otto Engines and Majorisation

- Physics
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The concept of majorisation is explored as a tool to characterize the performance of a quantum Otto engine in the quasi-static regime. For a working substance in the form of a spin of arbitrary…

### Enhanced Energy Transfer to an Optomechanical Piston from Indistinguishable Photons.

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A quantum thermodynamic thought experiment is presented in which the energy transfer from two photonic gases to a piston membrane grows quadratically with the number of photons for indistinguishable gases, while it grows linearly for distinguishable gases.

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- PhysicsPhysical Review E
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Recent experiments at the nanoscales conﬁrm that thermal rectiﬁers, the thermal equivalent of electrical diodes, can operate in the quantum regime. We present a thorough investigation of the eﬀect of…

### Quantum Heat Engines with Complex Working Media, Complete Otto Cycles and Heuristics

- PhysicsEntropy
- 2021

This paper examines the performance of a quasi-static quantum Otto engine based on two spins of arbitrary magnitudes subject to an external magnetic field and coupled via an isotropic Heisenberg exchange interaction and formulates heuristics to infer the necessary conditions for an engine with uncoupled as well as coupled spin model.

### Otto Engine: Classical and Quantum Approach

- PhysicsEntropy
- 2020

This paper analyze the total work extracted and the efficiency of the magnetic Otto cycle in its classic and quantum versions, finding that the work and efficiency in both the Otto's quantum and classical cycles are identical, regardless of the working substance.

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