Altug Sisman
Visiting researcher at Department of Physics and Astronomy; Materials Theory; Quantum Matter Theory
- E-mail:
- altug.sisman@physics.uu.se
- Visiting address:
- Ångströmlaboratoriet, Regementsvägen 10
752 37 Uppsala - Postal address:
- Box 524
751 20 UPPSALA
Visiting researcher at Department of Physics and Astronomy; Materials Theory
- E-mail:
- altug.sisman@physics.uu.se
- Visiting address:
- Ångströmlaboratoriet, Regementsvägen 10
752 37 Uppsala - Postal address:
- Box 524
751 20 UPPSALA
- CV:
- Download CV
- ORCID:
- 0000-0002-7431-5115
Short presentation
I work on theoretical and computational studies of how geometry influences the thermodynamic and transport properties of confined systems, including quantum size, shape, and curvature effects. Another focus of my research is systems with fractional-dimensional momentum spaces. Leveraging the unusual physical behavior of such systems, I also explore and propose conceptual approaches to novel energy conversion and storage technologies. I collaborate with Prof. Jonas Fransson on these topics.
Keywords
- Quantum shape effects
- fractional-dimensional effects
- statistical thermodynamics
- semi-classical transport
- finite systems.
Biography
Please see my CV & publication list above.
Research
Quantum size and shape effects on thermodynamic and transport properties of nano-scale systems (theoretical and computational modelling). Predictions of novel nano-scale effects which can be used to design and develop superior energy conversion and storage devices.

Publications
Selection of publications
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Temperature-Induced Quantum Migration and local heat capacity in confined Fermi gases
Part of Physical review. E, 2026
- DOI for Temperature-Induced Quantum Migration and local heat capacity in confined Fermi gases
- Download full text (pdf) of Temperature-Induced Quantum Migration and local heat capacity in confined Fermi gases
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Local and global heat capacities of confined Bose gases: The impact of quantum migration
Part of Physical review. E, 2025
- DOI for Local and global heat capacities of confined Bose gases: The impact of quantum migration
- Download full text (pdf) of Local and global heat capacities of confined Bose gases: The impact of quantum migration
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Quantum migration and its local heat impact: Understanding local heat capacity of confined systems
Part of Physical review. E, 2024
- DOI for Quantum migration and its local heat impact: Understanding local heat capacity of confined systems
- Download full text (pdf) of Quantum migration and its local heat impact: Understanding local heat capacity of confined systems
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Origin of the quantum shape effect
Part of Physical review. E, 2023
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Part of Journal of Physics, 2022
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Thermodefect voltage in graphene nanoribbon junctions
Part of Journal of Physics, 2022
- DOI for Thermodefect voltage in graphene nanoribbon junctions
- Download full text (pdf) of Thermodefect voltage in graphene nanoribbon junctions
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Fractional integral representation in statistical thermodynamics of confined systems
Part of Physical review. E, 2021
- DOI for Fractional integral representation in statistical thermodynamics of confined systems
- Download full text (pdf) of Fractional integral representation in statistical thermodynamics of confined systems
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Thermoshape effect for energy harvesting with nanostructures
Part of Journal of Physics D, 2020
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Thermosize voltage induced in a ballistic graphene nanoribbon junction
Part of Journal of Applied Physics, 2019
- DOI for Thermosize voltage induced in a ballistic graphene nanoribbon junction
- Download full text (pdf) of Thermosize voltage induced in a ballistic graphene nanoribbon junction
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Quantum shape effects and novel thermodynamic behaviors at nanoscale
Part of Physics Letters A, p. 655-665, 2019
Recent publications
-
Temperature-Induced Quantum Migration and local heat capacity in confined Fermi gases
Part of Physical review. E, 2026
- DOI for Temperature-Induced Quantum Migration and local heat capacity in confined Fermi gases
- Download full text (pdf) of Temperature-Induced Quantum Migration and local heat capacity in confined Fermi gases
-
Local and global heat capacities of confined Bose gases: The impact of quantum migration
Part of Physical review. E, 2025
- DOI for Local and global heat capacities of confined Bose gases: The impact of quantum migration
- Download full text (pdf) of Local and global heat capacities of confined Bose gases: The impact of quantum migration
-
Groundwater flow impacts on very high temperature borehole thermal energy storage performance
Part of Energy and Buildings, 2025
- DOI for Groundwater flow impacts on very high temperature borehole thermal energy storage performance
- Download full text (pdf) of Groundwater flow impacts on very high temperature borehole thermal energy storage performance
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Shape-controlled Bose-Einstein condensation
Part of Physica Scripta, 2025
- DOI for Shape-controlled Bose-Einstein condensation
- Download full text (pdf) of Shape-controlled Bose-Einstein condensation
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The Impact of Underground Flows on The Economic Feasibility of a VHT-BTES System
Part of Fifth EAGE Global Energy Transition Conference & Exhibition (GET 2024), 2024
All publications
Articles in journal
-
Temperature-Induced Quantum Migration and local heat capacity in confined Fermi gases
Part of Physical review. E, 2026
- DOI for Temperature-Induced Quantum Migration and local heat capacity in confined Fermi gases
- Download full text (pdf) of Temperature-Induced Quantum Migration and local heat capacity in confined Fermi gases
-
Local and global heat capacities of confined Bose gases: The impact of quantum migration
Part of Physical review. E, 2025
- DOI for Local and global heat capacities of confined Bose gases: The impact of quantum migration
- Download full text (pdf) of Local and global heat capacities of confined Bose gases: The impact of quantum migration
-
Groundwater flow impacts on very high temperature borehole thermal energy storage performance
Part of Energy and Buildings, 2025
- DOI for Groundwater flow impacts on very high temperature borehole thermal energy storage performance
- Download full text (pdf) of Groundwater flow impacts on very high temperature borehole thermal energy storage performance
-
Shape-controlled Bose-Einstein condensation
Part of Physica Scripta, 2025
- DOI for Shape-controlled Bose-Einstein condensation
- Download full text (pdf) of Shape-controlled Bose-Einstein condensation
-
Quantum migration and its local heat impact: Understanding local heat capacity of confined systems
Part of Physical review. E, 2024
- DOI for Quantum migration and its local heat impact: Understanding local heat capacity of confined systems
- Download full text (pdf) of Quantum migration and its local heat impact: Understanding local heat capacity of confined systems
-
Flow-controlled thermal response test and its comparison with the conventional test methods
Part of Geothermics, 2024
- DOI for Flow-controlled thermal response test and its comparison with the conventional test methods
- Download full text (pdf) of Flow-controlled thermal response test and its comparison with the conventional test methods
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Very high temperature BTES: A potential for operationally cost-free and emission-free heating
Part of Applied Energy, 2024
- DOI for Very high temperature BTES: A potential for operationally cost-free and emission-free heating
- Download full text (pdf) of Very high temperature BTES: A potential for operationally cost-free and emission-free heating
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Collective behavior of boreholes and its optimization to maximize BTES performance
Part of Applied Energy, 2023
- DOI for Collective behavior of boreholes and its optimization to maximize BTES performance
- Download full text (pdf) of Collective behavior of boreholes and its optimization to maximize BTES performance
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Origin of the quantum shape effect
Part of Physical review. E, 2023
-
Part of Journal of Physics, 2022
-
Thermodefect voltage in graphene nanoribbon junctions
Part of Journal of Physics, 2022
- DOI for Thermodefect voltage in graphene nanoribbon junctions
- Download full text (pdf) of Thermodefect voltage in graphene nanoribbon junctions
-
Fractional integral representation in statistical thermodynamics of confined systems
Part of Physical review. E, 2021
- DOI for Fractional integral representation in statistical thermodynamics of confined systems
- Download full text (pdf) of Fractional integral representation in statistical thermodynamics of confined systems
-
Effect of layered geological structures on borehole heat transfer
Part of Geothermics, 2021
- DOI for Effect of layered geological structures on borehole heat transfer
- Download full text (pdf) of Effect of layered geological structures on borehole heat transfer
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Landauer’s Principle in a Quantum Szilard Engine without Maxwell’s Demon
Part of Entropy, 2020
- DOI for Landauer’s Principle in a Quantum Szilard Engine without Maxwell’s Demon
- Download full text (pdf) of Landauer’s Principle in a Quantum Szilard Engine without Maxwell’s Demon
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Thermoshape effect for energy harvesting with nanostructures
Part of Journal of Physics D, 2020
-
Thermosize voltage induced in a ballistic graphene nanoribbon junction
Part of Journal of Applied Physics, 2019
- DOI for Thermosize voltage induced in a ballistic graphene nanoribbon junction
- Download full text (pdf) of Thermosize voltage induced in a ballistic graphene nanoribbon junction
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Discrete and Weyl density of states for photonic dispersion relation
Part of Physica Scripta, 2019
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Quantum shape effects and novel thermodynamic behaviors at nanoscale
Part of Physics Letters A, p. 655-665, 2019
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Part of Applied Energy, p. 163-170, 2019
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A new method for analysis of constant-temperature thermal response tests
Part of Geothermics, p. 1-8, 2019
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Part of Energies, p. 118, 2018
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Quantum oscillations in confined and degenerate Fermi gases. I. Half-vicinity model
Part of Physics Letters A, p. 1807-1812, 2018
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Part of Physics Letters A, p. 1813-1817, 2018
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Characterization of density oscillations in confined and degenerate Fermi gases
Part of Modern physics letters B, 2018
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Thermosize effects in semiconductors
Part of Physics Letters A, p. 2704-2708, 2017
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Part of Physics Letters A, p. 1236-1240, 2016
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An analytical solution for quantum size effects on Seebeck coefficient
Part of Physica Scripta, 2016
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Parametric investigation of helical ground heat exchangers for heat pump applications
Part of Energy and Buildings, p. 999-1007, 2016
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Thermal performance analysis of multiple borehole heat exchangers
Part of Energy Conversion and Management, p. 544-551, 2016
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Experimental and computational investigation of multi U-tube boreholes
Part of Applied Energy, p. 163-171, 2015
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Dimensional transitions in thermodynamic properties of ideal Maxwell-Boltzmann gases
Part of Physica Scripta, 2015
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Discrete Nature of Thermodynamics in Confined Ideal Fermi Gases
Part of Physics Letters A, p. 2001-2007, 2014
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Quantum Forces of a gas confined in nano structures
Part of Physica Scripta, 2013
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Characterization of a thermoelectric generator at low temperatures
Part of Energy Conversion and Management, p. 47-50, 2012
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Quantum Size Effects on Classical Thermosize Effects
Part of Continuum Mechanics and Thermodynamics, p. 339-346, 2012
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Classical thermosize effects in degenerate quantum gases
Part of Journal of Computational and Theoretical Nanoscience, p. 1-4, 2011
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Thermodynamic cycles based on classical thermosize effects
Part of Journal of Computational and Theoretical Nanoscience, p. 1-7, 2011
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Effects of Particle-Wall Interactions on the Thermodynamic Behavior of Gases at the Nano Scale
Part of International Journal of Thermodynamics, p. 155-161, 2011
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Quantum Effects on Gas Diffusion at the Nano Scale
Part of International Journal of Thermodynamics, p. 163-166, 2011
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Thermodynamics of gases in nano cavities
Part of Energy, p. 814-819, 2010
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Quantum size effects on thermal and potential conductivities of ideal gases
Part of Physica Scripta, 2009
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Two-dimensional thermal analysis of liquid hydrogen tank insulation
Part of International journal of hydrogen energy, p. 6357-6363, 2009
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Universality of the quantum boundary layer for a Maxwellian gas
Part of Physica Scripta, 2009
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Part of Physics Letters A, p. 16-20, 2007
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Surface dependence in thermodynamics of ideal gases
Part of Journal of Physics A, p. 11353-11361, 2004
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The Casimir-like size effects in ideal gases
Part of Physics Letters A, p. 360-366, 2004
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Brayton refrigeration cycle working at quantum degeneracy conditions
Part of Applied Energy, p. 77-85, 2001
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Joule-Thomson Coefficients of quantum ideal gases
Part of Applied Energy, p. 49-57, 2001
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The improvement effect of quantum degeneracy on the work of Carnot cycle
Part of Applied Energy, p. 367-376, 2001
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The efficiency analyses of a Stirling power cycle at the quantum degeneracy conditions
Part of Physica Scripta, p. 263-267, 2001
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Quantum Degeneracy Effect on the Work Output from A Stirling Cycle
Part of Journal of Applied Physics, p. 3086-3089, 2001
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Re-optimisation of Otto power cycles working with ideal quantum gases
Part of Physica Scripta, p. 108-112, 2001
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On The Upper Limit for Surface Temperature of a Static and Spherical Body
Part of International Journal of Modern Physics D, p. 215-225, 2000
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High Temperature Corrections For The Classical Expressions Of Radiative Losses From A Black-Body
Part of Canadian journal of physics (Print), p. 343-351, 1999
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On The Power Cycles Working with The Ideal Quantum Gases-I: The Ericson Cycle
Part of Journal of Physics D, p. 664-670, 1999
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Part of Annals of Nuclear Energy, p. 1133-1140, 1998
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Part of Kerntechnik (1987), p. 245-248, 1997
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The Effect of Joule Losses on The Total Efficiency of A Thermoelectric Power Cycle
Part of Energy, p. 573-576, 1995
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Part of Journal of Physics A, p. 5729-5735, 1995
Conference papers
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The Impact of Underground Flows on The Economic Feasibility of a VHT-BTES System
Part of Fifth EAGE Global Energy Transition Conference & Exhibition (GET 2024), 2024
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Effect of Geological Formations on Thermal Performance Modelling of a Deep Borehole
2021