Preprints:
1.
Mehmet Emre Tasgin and Hyunchul Nha, Measurable
entanglement criterion for extended Bose-Hubbard model, arXiv:2402.05477
(2024).
2.
Shakir Ullah, M. E. Tasgin, R. V. Ovali,
Mehmet Gunay, Electrically-programmable frequency
comb for compact quantum photonic circuits, arXiv:2308.00439
3.
M. E. Tasgin, Energy of the symmetrization entanglement, arXiv:2302.10191 (2023).
4.
R. V. Ovali, S. Ullah, M. Günay, M. E. Tasgin, Environmental-induced work extraction,
arXiv:2310.17809 (2023).
5.
M. E. Tasgin, Flux
quantization and electron-positron pair creation (GENERALIZED).
6.
M. E. Tasgin, Quantization
of magnetic flux and electron-positron pair creation.
7. M. Emre Tasgin, Entanglement
& violation of Kramers-Kronig relations, presentation
@ YouTube
8.
M. E. Tasgin, Anatomy of Entanglement and Nonclassicality criteria, arXiv:1901.04045
9.
You-Lin Chuang and M. E. Tasgin, Coherent control of optical bistability in Rydberg electromagnetically-induced transparency
atomic system, arXiv:1811.04776
PUBLICATION LIST
Book Chapter:
(Chapter
1 available in Google Books)
Publications:
1.
Hira Asif, Alpan Bek, Mehmet Emre Tasgin and
Ramazan Sahin, Voltage-control of extraordinary optical transmission in the visible regime, Phys. Rev. B 109, 125425 (2024). arXiv:2311.02949.
2.
Hira Asif, Mehmet Emre Tasgin and Ramazan Sahin, All-optical
control of ultrafast plasmon resonances in the pulse-driven extraordinary optical
transmission, Journal of Optics 25, 075501 (2023). [Editors top
10 pick in half 2023].
3.
Mehmet Günay, Priyam
Das, Emre Yüce, Emre Ozan Polat, Alpan Bek and Mehmet
Emre Tasgin, On-demand
continuous-variable quantum entanglement source for integrated circuits,
Nanophotonics 12, 229-237 (2023). Presentation @ YouTube
4. Asli Gencaslan,
Taner Tarik Aytas, Hira
Asif, Mehmet Emre Tasgin, Ramazan Sahin, Silent-enhancement
of multiple Raman modes via tuning optical properties of graphene
nanostructures, The
European Physical Journal Plus 137, 1330 (2022). arXiv:2206.05405
5. Mehmet Günay, Ahmet Cicek, Nurettin Korozlu, Alpan Bek,
Mehmet Emre Taşgın, Fano Control of Unlocalized Nonlinear
Processes, Phys. Rev. B 104,
235407 (2021). arXiv:1905.01129
6.
Emre Yuce,
Zafer Artvin, Ramazan Sahin, Alpan Bek, Mehmet Emre
Tasgin, Ultra-large
actively tunable photonic band gaps via plasmon-analog of index enhancement,
Appl. Phys. Lett. 119,
211103 (2021). arXiv:2006.07132
7.
Rasim Volga Ovali,
Ramazan Sahin, Alpan Bek, Mehmet Emre Tasgin, Single-molecule-resolution
ultrafast near-field optical microscopy via plasmon lifetime extension,
Appl. Phys. Lett. 118, 241103
(2021).
8.
M. E. Tasgin, Negative
superluminal velocity and violation of Kramers-Kronig
relations in causal optical setups, Phys. Rev. A 103, 013504 (2021). arXiv:2009.13625
9.
Zafer Artvin,
Mehmet Günay, Alpan Bek and Mehmet Emre Tasgin, Fano-control
of down-conversion in a nonlinear crystal via plasmonic-quantum emitter hybrid
structures, Journal of Optical Society of America B 37,3769 (2020). arXiv:1805.01148
10.
M. E. Tasgin, Single-mode nonclassicality criteria via Holstein-Primakoff transformation, J. Phys. B: At. Mol.
Opt. Phys. 53 245501 (2020).
arXiv:1502.00988
11.
M. E. Tasgin, Measuring
nonclassicality of single-mode states, J. Phys. B: At. Mol.
Opt. Phys. 53, 175501 (2020). arXiv:1502.00992.
12. Mehmet Emre Tasgin, Mehmet Gunay and M. Suhail
Zubairy, Nonclassicality
and entanglement for wavepackets, Phys. Rev.
A 101, 062316 (2020). arXiv:1904.13149
13.
Mehmet Günay, You-Lin Chuang, M. Emre Tasgin, Continuously-tunable Cherenkov-radiation-based particle
detectors via plasmon index control, Nanophotonics 9, 1479 (2020). arXiv:1911.08159
14.
Mehmet Günay, Vasilios Karanikolas,
Ramazan Sahin, Rasim Volga Ovali, Alpan Bek, Mehmet Emre Tasgin, Quantum
emitter interacting with graphene coating in the strong-coupling regime,
Phys. Rev. B 101, 165412
(2020). arXiv:1906.04434
15.
Bilge Can Yildiz, Alpan Bek and Mehmet Emre Tasgin, Plasmon
lifetime enhancement in a bright-dark mode coupled system, Phys. Rev. B 101, 035416
(2020). arXiv:1905.07248
16.
Mehmet Emre Tasgin and M.
Suhail Zubairy, Quantifications
for multi-mode entanglement, Phys. Rev. A 101, 012324 (2020). arXiv:1905.01740
17. Mehmet Günay*, Zafer Artvin, Alpan Bek, Mehmet Emre Tasgin, Controlling
steady-state second harmonic signal via linear and nonlinear Fano resonances, Journal of Modern Optics 67, 26-34 (2020).
18. Mehmet Günay, Özgür Esat Müstecaplıoğlu and Mehmet Emre Tasgin, Entanglement
of two interacting ensembles via a Dicke-like quantum phase transition,
Phys. Rev. A 100, 063838
(2019). arXiv:1904.12668
19.
Selen Postaci,
Bilge Can Yildiz, Alpan Bek, Mehmet Emre Tasgin, Silent
enhancement of SERS signal without increasing the hot spot intensity,
Nanophotonics 7, 16871695 2018.
20.
Mehmet Emre Tasgin, Many-particle entanglement criterion for superradiant-like
states,
Phys. Rev. Lett. 119,
033601 (2017). arXiv:1610.06883
21.
Priyam Das, Mehmet Emre
Tasgin*, Ozgur E. Mustecaplioglu, Collectively induced many-vortices topology via rotatory Dicke quantum
phase transition,
New J. Phys. 18, 093022
(2016). arXiv:1601.06413
22.
M. E. Tasgin*, I. Salakhutdinov, D. Kendziora, M.
K. Abak, D. Turkpence, L. Piantanida,
L. Fruk, M. Lazzarino,
Alpan Bek, Fluorescence Excitation by Enhanced Plasmon Upconversion
under Continuous Wave Illumination, Photonics and
Nanostructures - Fundamentals and Applications 21, 32 (2016).
23.
Shailendra K. Singh, M. Kurtulus Abak, and Mehmet Emre
Tasgin* , Enhancement of Four-Wave Mixing via interference of multiple plasmonic
conversion paths,
Phys. Rev. B 93, 035410
(2016). arXiv:1507.07734
24.
Wenchao Ge, Mehmet Emre
Tasgin*, M. Suhail Zubairy, Conservation relation of nonclassicality and entanglement for Gaussian
states in a beam splitter, Phys.
Rev. A 92, 052328 (2015). arXiv:1506.04937
25.
Bilge Can Yildiz*, Mehmet Emre Tasgin, Musa Kurtulus Abak, Sahin
Coskun, Husnu Emrah Unalan, Alpan Bek, Enhanced Second Harmonic Generation from Coupled Asymmetric Plasmonic Metal
Nanostructures, J. Opt. 17, 125005 (2015). arXiv:1412.0238 (invited to Journal of Optics from arXiv)
26.
D. Turkpence, Gursoy B.
Akguc, Alpan Bek, M. E. Tasgin* , Engineering
nonlinear response of nanomaterials using Fano resonances, J.
Opt. 16, 105009 (2014).
27.
M.E. Tasgin, Metal
nanoparticle plasmons operating within quantum lifetime,
Nanoscale 5, 8616 (2013).
28.
M.
E. Tasgin, Testing
the reliability of a velocity definition in dispersive medium, Physical Review A 86,
033833 (2012).
Can propagation speed of light really be superluminal (v>c) in
dispersive medium?
The famous
experiment [1], where a Gaussian light pulse passes through a dye solution with
a speed which is larger than the one in vacuum (c), aroused great interest in
the scientific community. Moreover, the
theoretical simulations ─regarding velocities deduced by tracking the
peak of the pulse [2] or the averaged center of the pulse [3] ─ were in
good agreement with the experiment. It is also argued that the
superluminal-like propagation could be originated from the reshaping of the
pulse due to absorption or gain present in the medium. The detectors used in
the experiments were already measuring the mean position of the pulse [4].
Superluminal propagation could not be disproved, because one cannot decide on
the reference point which corresponds to the displacement of the wave packet.
In the presented work [5], we adopt a
method to check if pulse propagation is indeed superluminal. We test if a
velocity definition and the calculated speed values are reliable in the
superluminal propagation regime. We treat the same problem in two different
mathematical approaches; real-frequency (reel-ω) and real-wavevector
(real-k) Fourier expansions. If a given
velocity definition (e.g. the one which refers to the mean pulse center) is
reliable, then it must result in similar values for the velocity in the two
approaches. However, we observe that the velocities calculated in the two
approaches differ significantly in the superluminal regime. Therefore,
one cannot claim the existence of superluminal propagation.
[1] L. J.Wang, A. Kuzmich, and A. Dogariu, Nature
(London) 406, 277 (2000). [2] M. Tanaka,M. Fujiwara, and H. Ikegami, Phys. Rev. A 34, 4851 (1986).
[3] J. Peatross, S. A. Glasgow, and M. Ware, Phys. Rev. Lett. 84, 2370 (2000).
[4] Lipsa Nanda, Aakash Basu,
and S. A. Ramakrishna, Phys. Rev. E 74, 036601 (2006). [5] M. E.
Taşgın, Phys. Rev. A 86, 033833 (2012).
29.
M.E. Taşgın, Ö.E. Müstecaplıoğlu
and L. You, Creation of a vortex in a Bose-Einstein condensate by superradiant
scattering, Physical Review A 84, 063628 (2011). (selected
as the section cover in Optics and Photonics News, OSA, in May
2013.)
30.
M.E. Taşgın*
and P. Meystre, Spin squeezing with coherent light via entanglement swapping, Physical Review A 83,
053848 (2011).
31. S.K. Steinke, S. Singh, M.E. Taşgın, P. Meystre, K.C. Schwab, M. Vengalattore,
Quantum measurement backaction from a BEC coupled to a mechanical
oscillator, Physical Review A 84, 023841 (2011).
32.
M.E. Taşgın,
M.Ö. Oktel, L. You, and Ö.E. Müstecaplıoğlu, Quantum correlated light pulses from sequential superradiance of a
condensate,
Physical Review A, 79,
053603 (2009).
Selected for the May 2009 issue of Virtual Journal of Quantum Information.
33.
M.E. Taşgın,
Ö.E. Müstecaplıoğlu, and M.Ö. Oktel, Photonic band gap in the triangular lattice of Bose-Einstein-condensate
vortices,
Physical Review A, 75,
063627 (2007).
34.
M.E. Taşgın,
M.Ö. Oktel, L. You, and Ö.E. Müstecaplıoğlu, Quantum Entanglement via Superradiance of a BoseEinstein Condensate,
Laser Physics, 20, 700
(2010).
35.
M.E. Taşgın, B.
Öztop, M.Ö. Oktel, and Ö.E. Müstecaplıoğlu,
Quantum correlations among superradiant
Bose-Einstein condensate atoms, Optics and Spectroscopy, 108, 433 (2010).
36.
M.E. Taşgın,
Ö.E. Müstecaplıoğlu, and M.Ö. Oktel, Vortex Lattice of a Bose-Einstein Condensate as a Photonic Band Gap
Material, Laser
Physics, 19, 647 (2009).
37. M.E. Taşgın, A. L. Subaşı,
M.Ö. Oktel, and B. Tanatar, Vortices in trapped boson-fermion mixtures, Journal of Low
Temperature Physics, 138, 611 (2005).
*
Corresponding author.
Conference proceedings:
M.E. Taşgın and M.Ö. Oktel, Dynamical instability of a two component Bose-Einstein Condensate in an
optical lattice, Journal of Physics: Conference Series, 36, 200
(2006).
Other publications:
1.
M. E. Tasgin, The
Connection between real-ω and real-k approaches in an absorbing medium, Balkan Journal of Electrical & Computer Engineering 1, 32 (2013).
Dissertation Thesis
Quantum Entanglement
and Light Propagation
Bose-Einstein
Condensate (BEC)
SOME POSTERS
1. Quantum correlated light pulses
from sequential superradiance of a condensate,
M.E. Taşgın, M.Ö. Oktel, Li You, and
Ö.E. Müstecaplıoğlu
APS
(American Physical Society) March Meeting,
14-20
March 2009, Pittsburgh, PA, USA. .pdf
2. Quantum Entanglement in quantum
collective phenomena
and Photonic Band Gaps in BEC vortex
lattices,
M.E. Taşgın, M.Ö. Oktel, and Ö.E.
Müstecaplıoğlu
ICQO
(XII International Conference on Quantum Optics and Quantum Information),
September 20-23, 2008, Vilnius, Lithuania.
3. Continuous variable atom-atom
entanglement
in the
sequential superradiance of a Bose-Eintein condensate
M.E. Taşgın, M.Ö. Oktel, Li You, and
Ö.E. Müstecaplıoğlu
YMF (XV.
Conference on Condensed Matter Physics)
7
November 2008, Bilkent, Ankara, Turkey. .pdf
(Best poster award.)