BEGIN:VCALENDAR
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PRODID:researchseminars.org
CALSCALE:GREGORIAN
X-WR-CALNAME:researchseminars.org
BEGIN:VEVENT
SUMMARY:Krzysztof Pomorski (University College Dublin)
DTSTART;VALUE=DATE-TIME:20200605T150000Z
DTEND;VALUE=DATE-TIME:20200605T160000Z
DTSTAMP;VALUE=DATE-TIME:20240329T004214Z
UID:QTech/1
DESCRIPTION:Title: Hy
brid superconductig-semiconductor quantum computer\nby Krzysztof Pomor
ski (University College Dublin) as part of Seminars on Quantum Technologie
s\n\n\nAbstract\nThe interface between superconducting Josephson junction
and semiconductor position-based qubit implemented in coupled semiconducto
r q-dots is described such that it can be the base for electrostatic inter
face between superconducting and semiconductor quantum computer. Modificat
ion of Andreev Bound State in Josephson junction by the presence of semico
nductor qubit in its proximity and electrostatic interaction with supercon
ducting qubit is spotted by the minimalist tight-binding model. The obtain
ed analytical results allow in creating interface between semiconductor qu
antum computer and superconducting quantum computer. They open the perspec
tive of construction of QISKIT like software that will describe both types
of quantum computers as well as their interface.\n
LOCATION:https://researchseminars.org/talk/QTech/1/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Krzysztof Pomorski (University College Dublin)
DTSTART;VALUE=DATE-TIME:20200612T150000Z
DTEND;VALUE=DATE-TIME:20200612T160000Z
DTSTAMP;VALUE=DATE-TIME:20240329T004214Z
UID:QTech/2
DESCRIPTION:Title: Ma
ny-body physics in single electron devices\nby Krzysztof Pomorski (Uni
versity College Dublin) as part of Seminars on Quantum Technologies\n\nAbs
tract: TBA\n
LOCATION:https://researchseminars.org/talk/QTech/2/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Krzysztof Pomorski (University College Dublin)
DTSTART;VALUE=DATE-TIME:20200619T150000Z
DTEND;VALUE=DATE-TIME:20200619T160000Z
DTSTAMP;VALUE=DATE-TIME:20240329T004214Z
UID:QTech/3
DESCRIPTION:Title: Qu
antum sensing in single electron devices\nby Krzysztof Pomorski (Unive
rsity College Dublin) as part of Seminars on Quantum Technologies\n\nAbstr
act: TBA\n
LOCATION:https://researchseminars.org/talk/QTech/3/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Krzysztof Pomorski (University College Dublin)
DTSTART;VALUE=DATE-TIME:20200626T150000Z
DTEND;VALUE=DATE-TIME:20200626T160000Z
DTSTAMP;VALUE=DATE-TIME:20240329T004214Z
UID:QTech/4
DESCRIPTION:Title: To
wards quantum internet and non-local communication in position-based qubit
s\nby Krzysztof Pomorski (University College Dublin) as part of Semina
rs on Quantum Technologies\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/QTech/4/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Krzysztof Pomorski (University College Dublin)
DTSTART;VALUE=DATE-TIME:20200703T150000Z
DTEND;VALUE=DATE-TIME:20200703T160000Z
DTSTAMP;VALUE=DATE-TIME:20240329T004214Z
UID:QTech/5
DESCRIPTION:Title: Qu
antum communication among position based qubits\nby Krzysztof Pomorski
(University College Dublin) as part of Seminars on Quantum Technologies\n
\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/QTech/5/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Krzysztof Pomorski (University College Dublin)
DTSTART;VALUE=DATE-TIME:20200710T150000Z
DTEND;VALUE=DATE-TIME:20200710T160000Z
DTSTAMP;VALUE=DATE-TIME:20240329T004214Z
UID:QTech/6
DESCRIPTION:Title: An
alytic view on N body interaction in electrostatic quantum gates and decoh
erence effects in tight-binding model\nby Krzysztof Pomorski (Universi
ty College Dublin) as part of Seminars on Quantum Technologies\n\nAbstract
: TBA\n
LOCATION:https://researchseminars.org/talk/QTech/6/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Marcin Kowalik (University of Information Technology and Managemen
t in Rzeszów)
DTSTART;VALUE=DATE-TIME:20200717T150000Z
DTEND;VALUE=DATE-TIME:20200717T160000Z
DTSTAMP;VALUE=DATE-TIME:20240329T004214Z
UID:QTech/7
DESCRIPTION:Title: Ma
chine Learning in Cryogenics with the example of data analysis of phase tr
ansitions in high-temperature superconductors\nby Marcin Kowalik (Univ
ersity of Information Technology and Management in Rzeszów) as part of Se
minars on Quantum Technologies\n\n\nAbstract\nThe usage of artificial neur
al networks and machine learning methods is presented in estimation of cri
tical temperature from AC susceptibility in cryogenics experiments. Variou
s methodologies are presented. Particular cryogenic experiments are descri
bed and future perspectives are drawn.\n\n[ https://arxiv.org/abs/2002.034
52 ]\n
LOCATION:https://researchseminars.org/talk/QTech/7/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Krzysztof Pomorski (University College Dublin)
DTSTART;VALUE=DATE-TIME:20200717T160000Z
DTEND;VALUE=DATE-TIME:20200717T170000Z
DTSTAMP;VALUE=DATE-TIME:20240329T004214Z
UID:QTech/8
DESCRIPTION:Title: An
alytical view on non-invasive measurement of moving charge by position-dep
endent semiconductor qubit(s) of various topologies\nby Krzysztof Pomo
rski (University College Dublin) as part of Seminars on Quantum Technologi
es\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/QTech/8/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Krzysztof Pomorski (University College Dublin)
DTSTART;VALUE=DATE-TIME:20200724T150000Z
DTEND;VALUE=DATE-TIME:20200724T160000Z
DTSTAMP;VALUE=DATE-TIME:20240329T004214Z
UID:QTech/9
DESCRIPTION:Title: Fr
om theory of macroscopic quantum effects to cosmology and elementary parti
cles\nby Krzysztof Pomorski (University College Dublin) as part of Sem
inars on Quantum Technologies\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/QTech/9/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Krzysztof Pomorski (University College Dublin)
DTSTART;VALUE=DATE-TIME:20200731T150000Z
DTEND;VALUE=DATE-TIME:20200731T170000Z
DTSTAMP;VALUE=DATE-TIME:20240329T004214Z
UID:QTech/10
DESCRIPTION:Title: F
rom theory of macroscopic quantum effects to cosmology and elementary part
icles (part 2)\nby Krzysztof Pomorski (University College Dublin) as p
art of Seminars on Quantum Technologies\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/QTech/10/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Krzysztof Pomorski (Cracow University of Technology)
DTSTART;VALUE=DATE-TIME:20210122T150000Z
DTEND;VALUE=DATE-TIME:20210122T170000Z
DTSTAMP;VALUE=DATE-TIME:20240329T004214Z
UID:QTech/11
DESCRIPTION:Title: E
quivalence between classical epidemic model and non-dissipative and dissip
ative quantum tight-binding model\nby Krzysztof Pomorski (Cracow Unive
rsity of Technology) as part of Seminars on Quantum Technologies\n\n\nAbst
ract\nThe equivalence between classical epidemic model and nondissipative
and dissipative quantum tight-binding model is derived. Classical epidemic
model can reproduce the quantum entanglement emerging in the case of elec
trostatically coupled qubits described by von-Neumann entropy both in non-
dissipative and dissipative case. The obtained results shows that quantum
mechanical phenomena might be almost entirely simulated by classical stati
stical model. It includes the quantum like entanglement and superposition
of states. Therefore coupled epidemic models expressed by classical system
s in terms of classical physics can be the base for possible incorporation
of quantum technologies and in particular for quantum like computation an
d quantum like communication. The classical density matrix is derived and
described by the equation of motion in terms of anticommutator. Existence
of Rabi like oscillations is pointed in classical epidemic model. Furtherm
ore the existence of Aharonov-Bohm effect in quantum systems can also be r
eproduced by the classical epidemic model. Every quantum system made from
quantum dots and described by simplistic tight-binding model by use of pos
ition-based qubits can be effectively described by classical model with ve
ry specific structure of S matrix that has twice bigger size as it is the
case of quantum matrix Hamiltonian. Obtained results partly question funda
mental and unique character of quantum mechanics and are placing ontology
of quantum mechanics much in the framework of classical statistical physic
s what can bring motivation for emergence of other fundamental theories br
inging suggestion that quantum mechanical is only effective and phenomenol
ogical but not fundamental picture of reality.\n
LOCATION:https://researchseminars.org/talk/QTech/11/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Krzysztof Pomorski (Cracow University of Technology)
DTSTART;VALUE=DATE-TIME:20210129T150000Z
DTEND;VALUE=DATE-TIME:20210129T170000Z
DTSTAMP;VALUE=DATE-TIME:20240329T004214Z
UID:QTech/12
DESCRIPTION:Title: F
rom epidemic model to quantum-tight binding and q-AI\nby Krzysztof Pom
orski (Cracow University of Technology) as part of Seminars on Quantum Tec
hnologies\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/QTech/12/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Krzysztof Pomorski (Cracow University of Technology)
DTSTART;VALUE=DATE-TIME:20210205T150000Z
DTEND;VALUE=DATE-TIME:20210205T170000Z
DTSTAMP;VALUE=DATE-TIME:20240329T004214Z
UID:QTech/13
DESCRIPTION:Title: E
ntanglement in classical and quantum systems with case of epidemic and qua
ntum tight-binding model\nby Krzysztof Pomorski (Cracow University of
Technology) as part of Seminars on Quantum Technologies\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/QTech/13/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Krzysztof Pomorski (Cracow University of Technology)
DTSTART;VALUE=DATE-TIME:20210312T150000Z
DTEND;VALUE=DATE-TIME:20210312T170000Z
DTSTAMP;VALUE=DATE-TIME:20240329T004214Z
UID:QTech/14
DESCRIPTION:Title: F
undamental description of Wannier qubits in semiconductor\nby Krzyszto
f Pomorski (Cracow University of Technology) as part of Seminars on Quantu
m Technologies\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/QTech/14/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Marek Giebultowski (AGH University of Science and Technology)
DTSTART;VALUE=DATE-TIME:20210416T140000Z
DTEND;VALUE=DATE-TIME:20210416T160000Z
DTSTAMP;VALUE=DATE-TIME:20240329T004214Z
UID:QTech/15
DESCRIPTION:Title: E
xperimental high-temperature superconductors study in direction of applica
tion in information processing technologies\nby Marek Giebultowski (AG
H University of Science and Technology) as part of Seminars on Quantum Tec
hnologies\n\n\nAbstract\nSuperconductors can be used in implementation of
Josephson junction based classical and quantum electronics. Properties of
Josephson junction are encoded in non-linear DC and AC current-voltage (I-
V) characteristics. The first step towards obtaining sophisticated circuit
s is relying on the syntheses and characterization of bulk superconducting
material. Various experimental technique study were conducted by measurem
ents of resistance\, AC susceptibility\, XRD pattern\, critical current ch
aracterization and finally by scanning electron microscope sample characte
rization. The studied material was Tl2Ba2Ca2Cu3Ox (Tl-2223) high temperatu
re bulk superconductor. Resistance and ac susceptibility are predeterminin
g critical exponents which are depending on the temperature. Critical curr
ents and critical temperatures are presented in function of sample oxygena
tion temperature.\n\nLiterature\n\n[1].Critical currents of Tl2Ba2Ca2Cu3Oz
bulk superconductors\, M. Giebułtowski\, M. W.Woch\, R.Zalecki\, M.Kowal
ik\, J.Niewolski\, Ł.Gondek\, Acta Physica Polonica. A\, Vol. 135\, No. 1
\,2019.\n\n[2].Dependence of oxygenation temperature on critical temperatu
re and current for Tl2Ba2Ca2Cu3Ox\, M. Giebułtowski\, W. M.Woch\, R. Zale
cki\, J.Michalik\, M.Kowalik\, J.Niewolski\, Ł.Gondek\, Acta Physica Polo
nica. A\, Vol.137\, No.5\, 2020.\n\n[3].Resistance and susceptibility of c
eramic Tl2Ba2Ca2Cu3Ox superconductor in the critical region\, M. Giebułto
wski\, W. M.Woch\, R.Zalecki\, M.Kowalik\, J. M.Michalik\, Ł.Gondek\, Act
a Physica Polonica. A\, Vol.138\, No.5\, 2020.\n\n[4].Synthesis of Tl-base
d ‘‘2234’’ superconductors\, T.Kaneko\, T.Wada\, K.Hamada\, H.Yama
uchi\, S.Tanaka\, J.Appl.Phys.\, Vol. 71\, 1992.\n\n[5].R.S Liu\, P.P.Edwa
rds in A.M.Hermann\, J.V.Yakhmi\, Thallium based high temperature supercon
ductors \, Marcel Dekker Inc. \,1994.\n\n[6]. Fluctuation induced diamagne
tism and dimensionality in superconducting layered compounds: TaS2 (pyridi
ne) 1/2 and NbSe2\, D.E.Prober\, M.R.Beasley\, R.E.Schwall\, Physical Revi
ew B\, Vol.15\, No.11\, 1977.\n\n[7]. VESTA: a three‐dimensional visuali
zation system for electronic and structural analysis\, K.Momma \, F.Izumi.
(https://doi.org/10.1107/S0021889808012016)\n\n[8]. Cobalt substitution e
ffects on critical current\, inter-grain full penetration field\, and crit
ical temperature study for Tl2Ba2Ca2Cu3-xCoxOy bulk superconductor\, where
x is from 0.005 to 0.050\, M.Giebułtowski\, R.Zalecki\, M.Rajska\, W.Tok
arz\, J.M.Michalik\, M.Kowalik. Ł.Gondek\, W.M.Woch\, Ceramics Internatio
nal [in Press]\, 2021.\n\n[9].K.Pomorski\, Physics of unconventional Josep
hson junctions\, Defended PhD\, 2015.\n
LOCATION:https://researchseminars.org/talk/QTech/15/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Ilan Roth (University of California Space Sciences\, Berkley)
DTSTART;VALUE=DATE-TIME:20220621T070000Z
DTEND;VALUE=DATE-TIME:20220621T080000Z
DTSTAMP;VALUE=DATE-TIME:20240329T004214Z
UID:QTech/16
DESCRIPTION:Title: T
errestrial Aurora: Laboratory for plasma processes in Space/Astrophysics
a>\nby Ilan Roth (University of California Space Sciences\, Berkley) as pa
rt of Seminars on Quantum Technologies\n\n\nAbstract\nTerrestrial Aurora\,
being a small unit of the solar system\, serves as unique laboratory of m
agnetized plasma. It forms a striking example of electrodynamic connection
between Earth and Sun\, being anchored in the ionosphere and affected by
the magnetosphere. I will present the basic structure of the Earth environ
ment\, show simple examples of various observed auroras and sketch the pro
cess in which particular interaction between electromagnetic waves and pla
sma particles at Earth may solve some old puzzles of acceleration of He is
otopes\, with implication on solar physics\, anomalous abundances in meteo
rites at the beginning of the solar system and at the planetary nebulae ob
served at the termination of stellar life.\n
LOCATION:https://researchseminars.org/talk/QTech/16/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Sachin Verma (Indian Institute of Technology)
DTSTART;VALUE=DATE-TIME:20221118T140000Z
DTEND;VALUE=DATE-TIME:20221118T150000Z
DTSTAMP;VALUE=DATE-TIME:20240329T004214Z
UID:QTech/17
DESCRIPTION:Title: T
hermoelectric transport through strongly correlated quantum-dot based hybr
id devices: A non-equilibrium many body Green’s function approach\nb
y Sachin Verma (Indian Institute of Technology) as part of Seminars on Qua
ntum Technologies\n\n\nAbstract\nWe shall present our analytical study of
a quantum dot (QD) based thermoelectric particle-exchange heat engine (N-Q
D-N) for both finite and infinite on-dot Coulomb correlation. Employing Ke
ldysh's nonequilibrium Green's function formalism for different decoupling
schemes in the equation of motion\, we have analyzed the thermoelectric p
roperties within the non-linear transport regime. As the simplest mean-fie
ld approximation is insufficient for analyzing thermoelectric properties i
n the Coulomb blockade regime\, one needs to employ a higher-order approxi
mation to study strongly correlated QD-based heat engines. Therefore\, we
initially used the Hubbard-Ⅰ approximation to study the quantum dot leve
l position (gate voltage)\, thermal gradient\, and on-dot Coulomb interact
ion dependence of the thermoelectric properties. To provide further insigh
t into a more practical QD heat engine operation\, we used an approach bey
ond Hubbard-Ⅰ with strong on-site Coulomb repulsion\, i.e.\, U→∞. Wi
thin this infinite-U limit\, we examine the role of the symmetric dot-rese
rvoir tunneling and external serial load resistance in optimizing the perf
ormance of the strongly correlated quantum dot heat engine. Our infinite-U
results show a good quantitative agreement with recent experimental data
and real time diagrammatic theory. Thus Green's function EOM technique whi
ch is a computationally inexpensive and straightforward analytical method
gives reliable results in the Coulomb blockade regime. The present analysi
s can be extended to examine the optimal performance of other realistic lo
w dimensional heat engines based on multiple quantum dots and multiple res
ervoirs within the strong Coulomb blockade regime.\n\nWe shall also briefl
y highlight our recent results for a hybrid QD system in which a Bardeen-C
ooper-Schrieffer (BCS) superconductor replaces the normal metallic drain r
eservoir. The results show that this hybrid superconductor-quantum dot sys
tem (N-QD-S) exhibits a finite thermal response\, thus making it a promisi
ng candidate for low-temperature thermal applications such as quantum dot-
based power generators\, refrigerators\, quantum heat valves\, and rectifi
ers.\n\nReferences\n\n1. Sachin Verma and Ajay\, (Manuscript under review)
(2022)\narXiv preprint: arXiv:2208.06686v1\n\n2. Sachin Verma and Ajay\,
Journal of Physics: Condensed Matter 34\, 155601 (2022)\, \nDOI: 10.1
088/1361-648X/ac4ced\n\n3. M. Josefsson\, A. Svilans\, A. M. Burke\, E. A.
Hoffmann\, S. Fahlvik\, C. Thelander\, M. Leijnse\, and H. Linke\, Nature
Nanotech 13\, 920–924\, (2018)\, M. Josefsson\, A. Svilans\, H. Linke\,
and M. Leijnse\, Phys. Rev. B 99\, 235432\, (2019)\n\n4. S. M. Tabatabaei
\, D. Sánchez\, A.L. Yeyati\, and R. Sánchez\, Phys. Rev. B 106\, 115419
\, (2022)\n
LOCATION:https://researchseminars.org/talk/QTech/17/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Mikolaj Zlotkowski (AGH University of Science and Technology)
DTSTART;VALUE=DATE-TIME:20230127T133000Z
DTEND;VALUE=DATE-TIME:20230127T143000Z
DTSTAMP;VALUE=DATE-TIME:20240329T004214Z
UID:QTech/18
DESCRIPTION:Title: C
ONVENTIONAL ENERGY SYSTEMS: Closed thermodynamic cycle and cooperative el
ements\nby Mikolaj Zlotkowski (AGH University of Science and Technolog
y) as part of Seminars on Quantum Technologies\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/QTech/18/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Justyna Dominikowska (University of Lodz)
DTSTART;VALUE=DATE-TIME:20240315T160000Z
DTEND;VALUE=DATE-TIME:20240315T170000Z
DTSTAMP;VALUE=DATE-TIME:20240329T004214Z
UID:QTech/19
DESCRIPTION:Title: K
ohn-Sham Density Functional Theory: Understanding Chemical Properties\
nby Justyna Dominikowska (University of Lodz) as part of Seminars on Quant
um Technologies\n\n\nAbstract\nDensity functional theory (DFT) is consider
ed to be one of the most\nwidespread quantum chemistry methods\, due to it
s universality. It covers\nchemical structural properties and reactivity i
n various fields such as\ninorganic\, organic and organometallic chemistry
. DFT methods may be\napplied to gas\, condensed phases and the solid stat
e as well as to the\nsurface phenomena. The aim of the talk is to present
major points of\ntheoretical background of the Kohn-Sham DFT formulation\,
the interaction\nenergy decomposition scheme based on this model\, and al
so its practical\nuse.\n
LOCATION:https://researchseminars.org/talk/QTech/19/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Marcin Ostrowski (Technical University of Lodz)
DTSTART;VALUE=DATE-TIME:20240405T150000Z
DTEND;VALUE=DATE-TIME:20240405T160000Z
DTSTAMP;VALUE=DATE-TIME:20240329T004214Z
UID:QTech/20
DESCRIPTION:Title: Q
uantum simulations in QISKIT\nby Marcin Ostrowski (Technical Universit
y of Lodz) as part of Seminars on Quantum Technologies\n\nInteractive live
stream: https://zoom.us/j/98192107496?pwd=aUZvMDlEZUNTVWxsNjYyRk96clVYdz09
\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/QTech/20/
URL:https://zoom.us/j/98192107496?pwd=aUZvMDlEZUNTVWxsNjYyRk96clVYdz09
END:VEVENT
END:VCALENDAR