Publications "Ungar, Florian"

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Article in a journal

Cosacchi, Michael ; Seidelmann, Tim ; Ungar, Florian ; Cygorek, Moritz ; Vagov, Alexei ; Axt, Vollrath Martin:
Transiently changing shape of the photon number distribution in a quantum-dot-cavity system driven by chirped laser pulses.
In: Physical Review B. Vol. 101 (2020) Issue 20 . - 205304.
ISSN 0163-1829
DOI: https://doi.org/10.1103/PhysRevB.101.205304

Cosacchi, Michael ; Ungar, Florian ; Cygorek, Moritz ; Vagov, Alexei ; Axt, Vollrath Martin:
Emission-Frequency Separated High Quality Single-Photon Sources Enabled by Phonons.
In: Physical Review Letters. Vol. 123 (2019) Issue 1 . - 017403.
ISSN 1079-7114
DOI: https://doi.org/10.1103/PhysRevLett.123.017403

Cygorek, Moritz ; Barth, Andreas M. ; Ungar, Florian ; Vagov, Alexei ; Axt, Vollrath Martin:
Erratum: Nonlinear cavity feeding and unconventional photon statistics in solid-state cavity QED revealed by many-level real-time path-integral calculations [Phys. Rev. B 96, 201201(R) (2017)].
In: Physical Review B. Vol. 99 (2019) Issue 7 . - 079906.
ISSN 0163-1829
DOI: https://doi.org/10.1103/PhysRevB.99.079906

Ungar, Florian ; Cygorek, Moritz ; Axt, Vollrath Martin:
Erratum: Origins of overshoots in the exciton spin dynamics in semiconductors [Phys. Rev. B 99, 165308 (2019)].
In: Physical Review B. Vol. 100 (2019) Issue 4 . - 049902.
ISSN 0163-1829
DOI: https://doi.org/10.1103/PhysRevB.100.049902

Seidelmann, Tim ; Ungar, Florian ; Cygorek, Moritz ; Vagov, Alexei ; Barth, Andreas M. ; Kuhn, Tilmann ; Axt, Vollrath Martin:
From strong to weak temperature dependence of the two-photon entanglement resulting from the biexciton cascade inside a cavity.
In: Physical Review B. Vol. 99 (2019) Issue 24 . - 245301.
ISSN 0163-1829
DOI: https://doi.org/10.1103/PhysRevB.99.245301

Ungar, Florian ; Cygorek, Moritz ; Axt, Vollrath Martin:
Origins of overshoots in the exciton spin dynamics in semiconductors.
In: Physical Review B. Vol. 99 (2019) Issue 16 . - 165308.
ISSN 0163-1829
DOI: https://doi.org/10.1103/PhysRevB.99.165308

Ungar, Florian ; Cygorek, Moritz ; Axt, Vollrath Martin:
Phonon impact on the dynamics of resonantly excited and hot excitons in diluted magnetic semiconductors.
In: Physical Review B. Vol. 99 (2019) Issue 11 . - 115305.
ISSN 0163-1829
DOI: https://doi.org/10.1103/PhysRevB.99.115305

Seidelmann, Tim ; Ungar, Florian ; Barth, Andreas M. ; Vagov, Alexei ; Axt, Vollrath Martin ; Cygorek, Moritz ; Kuhn, T.:
Phonon-Induced Enhancement of Photon Entanglement in Quantum Dot-Cavity Systems.
In: Physical Review Letters. Vol. 123 (2019) Issue 13 . - 137401.
ISSN 1079-7114
DOI: https://doi.org/10.1103/PhysRevLett.123.137401

Ungar, Florian ; Cygorek, Moritz ; Axt, Vollrath Martin:
Phonon-induced quantum ratchet in the exciton spin dynamics in diluted magnetic semiconductors in a magnetic field.
In: Physical Review B. Vol. 99 (2019) Issue 7 . - 075301.
ISSN 0163-1829
DOI: https://doi.org/10.1103/PhysRevB.99.075301

Ungar, Florian ; Cygorek, Moritz ; Axt, Vollrath Martin:
Role of excited states in the dynamics of excitons and their spins in diluted magnetic semiconductors.
In: Physical Review B. Vol. 99 (2019) Issue 19 . - 195309.
ISSN 0163-1829
DOI: https://doi.org/10.1103/PhysRevB.99.195309

Ungar, Florian ; Tamborenea, Pablo I. ; Axt, Vollrath Martin:
Spin dynamics of hot excitons in diluted magnetic semiconductors with spin-orbit interaction.
In: Physical Review B. Vol. 100 (2019) Issue 4 . - 045306.
ISSN 0163-1829
DOI: https://doi.org/10.1103/PhysRevB.100.045306

Ungar, Florian ; Tamborenea, Pablo I. ; Axt, Vollrath Martin:
Erratum: Spin dynamics of hot excitons in diluted magnetic semiconductors with spin-orbit interaction [Phys. Rev. B 100, 045306 (2019)].
In: Physical Review B. Vol. 100 (2019) Issue 8 . - 089901.
ISSN 0163-1829
DOI: https://doi.org/10.1103/PhysRevB.100.089901

Cygorek, Moritz ; Ungar, Florian ; Seidelmann, Tim ; Barth, Andreas M. ; Vagov, Alexei ; Axt, Vollrath Martin ; Kuhn, T.:
Comparison of different concurrences characterizing photon pairs generated in the biexciton cascade in quantum dots coupled to microcavities.
In: Physical Review B. Vol. 98 (2018) Issue 4 . - 045303.
ISSN 0163-1829
DOI: https://doi.org/10.1103/PhysRevB.98.045303

Ungar, Florian ; Cygorek, Moritz ; Axt, Vollrath Martin:
Many-body correlations brought to light in absorption spectra of diluted magnetic semiconductors.
In: Physical Review B. Vol. 98 (2018) Issue 16 . - 161201(R).
ISSN 0163-1829
DOI: https://doi.org/10.1103/PhysRevB.98.161201

Cosacchi, Michael ; Cygorek, Moritz ; Ungar, Florian ; Barth, Andreas M. ; Vagov, Alexei ; Axt, Vollrath Martin:
Path-integral approach for nonequilibrium multitime correlation functions of open quantum systems coupled to Markovian and non-Markovian environments.
In: Physical Review B. Vol. 98 (2018) Issue 12 . - 125302.
ISSN 0163-1829
DOI: https://doi.org/10.1103/PhysRevB.98.125302

Ungar, Florian ; Cygorek, Moritz ; Axt, Vollrath Martin:
Trend reversal in the magnetic-field dependence of exciton spin-transfer rates in diluted magnetic semiconductors due to non-Markovian dynamics.
In: Physical Review B. Vol. 97 (2018) Issue 4 . - 045210.
ISSN 0163-1829
DOI: https://doi.org/10.1103/PhysRevB.97.045210

Ungar, Florian ; Cygorek, Moritz ; Axt, Vollrath Martin:
Erratum: Quantum kinetic equations for the ultrafast spin dynamics of excitons in diluted magnetic semiconductor quantum wells after optical excitation [Phys. Rev. B 95, 245203 (2017)].
In: Physical Review B. Vol. 96 (2017) Issue 23 . - 239904.
ISSN 0163-1829
DOI: https://doi.org/10.1103/PhysRevB.96.239904

Cygorek, Moritz ; Ungar, Florian ; Tamborenea, Pablo I. ; Axt, Vollrath Martin:
Influence of nonmagnetic impurity scattering on spin dynamics in diluted magnetic semiconductors.
In: Physical Review B. Vol. 95 (2017) Issue 4 . - 045204.
ISSN 0163-1829
DOI: https://doi.org/10.1103/PhysRevB.95.045204

Cosacchi, Michael ; Cygorek, Moritz ; Ungar, Florian ; Axt, Vollrath Martin:
Nonexponential spin decay in a quantum kinetic description of the D'yakonov-Perel' mechanism mediated by impurity scattering.
In: Physical Review B. Vol. 95 (2017) Issue 19 . - 195313.
ISSN 0163-1829
DOI: https://doi.org/10.1103/PhysRevB.95.195313

Cygorek, Moritz ; Barth, Andreas M. ; Ungar, Florian ; Vagov, Alexei ; Axt, Vollrath Martin:
Nonlinear cavity feeding and unconventional photon statistics in solid-state cavity QED revealed by many-level real-time path-integral calculations.
In: Physical Review B. Vol. 96 (2017) Issue 20 . - 201201(R).
ISSN 0163-1829
DOI: https://doi.org/10.1103/PhysRevB.96.201201

Ungar, Florian ; Cygorek, Moritz ; Axt, Vollrath Martin:
Quantum kinetic equations for the ultrafast spin dynamics of excitons in diluted magnetic semiconductor quantum wells after optical excitation.
In: Physical Review B. Vol. 95 (2017) Issue 24 . - 245203.
ISSN 0163-1829
DOI: https://doi.org/10.1103/PhysRevB.95.245203

Ungar, Florian ; Cygorek, Moritz ; Tamborenea, Pablo I. ; Axt, Vollrath Martin:
Relaxation and coherent oscillations in the spin dynamics of II-VI diluted magnetic quantum wells.
In: Journal of Physics: Conference Series. Vol. 647 (2015) Issue 1 . - 012010.
ISSN 1742-6596
DOI: https://doi.org/10.1088/1742-6596/647/1/012010

Ungar, Florian ; Cygorek, Moritz ; Tamborenea, Pablo I. ; Axt, Vollrath Martin:
Ultrafast spin dynamics in II-VI diluted magnetic semiconductors with spin-orbit interaction.
In: Physical Review B. Vol. 91 (2015) Issue 19 . - 195201.
ISSN 0163-1829
DOI: https://doi.org/10.1103/PhysRevB.91.195201

Article in a book

Cygorek, Moritz ; Ungar, Florian ; Tamborenea, Pablo I. ; Axt, Vollrath Martin:
Dependence of quantum kinetic effects in the spin dynamics of diluted magnetic semiconductors on the excitation conditions.
In: Drouhin, Henri-Jean ; Wegrowe, Jean-Eric ; Razeghi, Manijeh (ed.): Spintronics IX. - Bellingham, Washington : SPIE , 2016 . - No. 993147 . - (Proceedings of SPIE ; 9931 )
ISBN 978-1-5106-0253-3
DOI: https://doi.org/10.1117/12.2235914

Doctoral thesis

Ungar, Florian Roland:
Ultrafast correlated many-body dynamics in magnetic and nonmagnetic quantum nanostructures.
Bayreuth , 2020 . - vi, 282 p.
( Doctoral thesis, 2020 , Universität Bayreuth, Fakultät für Mathematik, Physik und Informatik, Lehrstuhl Theoretische Physik III)
DOI: https://doi.org/10.15495/EPub_UBT_00004587

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