Internal dissipation and heat leaks in nanoscale heat devices - PowerPoint PPT Presentation

QUANTUM T E CHNOLOGIE S CONFE RE NCE V I 23-06 --2015 W ARSAW Internal dissipation and heat leaks in nanoscale heat devices Luis A. Correa

QUANTUM T E CHNOLOGIE S CONFE RE NCE V I 23-06 --2015 W ARSAW + JOI NT WORK W IT H: Jose P . P alao Daniel Alonso soon on ar Xiv ...

motivation

- The three level maser

The quantum absorption chiller P alao, Kosloff and Gordon, P h ys. Rev . E 64, 056130 ( 2001 )

The quantum absorption chiller P alao, Kosloff and Gordon, P h ys. Rev . E 64, 056130 ( 2001 )

The quantum absorption chiller P alao, Kosloff and Gordon, P h ys. Rev . E 64, 056130 ( 2001 )

The quantum absorption chiller P alao, Kosloff and Gordon, P h ys. Rev . E 64, 056130 ( 2001 )

The characteristic curve Gordon, Am. J. P h ys. 59 ( 6 ) , ( 1991 ) RSIBLE VE NDORE characteristic curve E

The characteristic curve Gordon, Am. J. P h ys. 59 ( 6 ) , ( 1991 ) realistic characteristic curve ● I nternal dissi pation ● Heat leaks ● F riction ● ...

outline ( 1 ) Motivation ( 2) T he four-level chiller ( 3 ) T he origin of heat leaks and internal dissi pation ( 4 ) Su p pression of heat leaks and internal dissi pation

- The four level chiller

- The four level chiller

- The four level chiller work hot cold

- The four level chiller work hot cold

The origin of heat leaks and internal dissipation

- Three level breakdown work hot cold

- Three level breakdown work hot cold

- Three level breakdown Correa, P h ys. Rev . E 89, 042128 ( 2014 ) work hot cold “plus ” “minus ” stage stage

Internal dissipation ” “plus stage's cooling window cooling heating ” “minus stage's cooling window cooling heating “plus ” “minus ” stage stage

Internal dissipation Kosloff and Lev y, Annual Rev . P h ys. Chem. 65 365 ( 2014 ) y production irreversible entrop

Heat leaks ( i ) “plus ” stage

Heat leaks ( i ) ( ii ) “minus ” stage

Heat leaks ( i ) ( ii ) “heat leaks ” ( iii ) stage

Heat leaks y production irreversible entrop “heat leaks ” stage

suppression of heat leaks and internal dissipation

Reservoir engineering Abah and Lutz, E PL 106 20001 ( 2014 ) relaxation rate

Reservoir engineering relaxation rate

Reservoir engineering relaxation rate

Reservoir engineering relaxation rate “plus ” stage

Reservoir engineering characteristic curve “plus ” stage

Reservoir engineering Kof man, Kurizki and Sherman, J. Mod. Opt 41 353 ( 1994 ) relaxation rate

Conclusions ( 1 ) We have introduced a minimalç model of irreversible autonomous heat device ( 2) We have described the mechanisms responsible for heat leaks and internal dissi pation ( 3 ) We have proposed reservoir engineering techniques to enhance the performance of the model

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