Quantum Coherence Lab

Zumbühl Group

 

Group Meetings

Topics in quantum transport and nanoscience research

Friday, 13:15am, group talks ~45 minutes

Meeting room 1.09

Please announce the paper of the week to the group on or before Wednesday

 

2019 Fall Semester (HS 2019)

DateNameTopicLink

05.07.19

no group meeting
12.07.19
11:15		Antonio Sousa De Almeida (Twente)
12.07.19talk by Carlos' students
16.07.19
Tue - 14:15		Catalina Marinescu
19.07.19group meeting
19.07.19
15:15		Carlos
26.07.19no group meeting
02.08.19no group meeting
09.08.19Florian
16.08.19Taras
23.08.19FabianMaster Thesis Defense
30.08.19group meeting
06.09.19no group meeting
11.09.19
Wed - 13:15
3.12		group meeting
13.09.19no group meeting
16.09.19HS 2019 begins
20.09.19Simon SvabMaster Thesis Defense
27.09.19group meeting
04.10.19no group meeting
11.10.19Tim
18.10.19no group meeting
25.10.19Andreas
01.11.19group meeting
08.11.19Leon
15.11.19Floris
22.11.19Henok
29.11.19Dies Academicus
06.12.19Mohammad
13.12.19Simon Geyer
20.12.19
HS 2019 ends		group meeting
27.12.19no group meeting
03.01.20no group meeting
10.01.20group meeting
17.01.20Kris
24.01.20Miguel
31.01.20Christian
 

2019 Spring Semester (FS 2019)

DateNameTopicLink
22.02.19
FS 2019 begins		no group meeting
01.03.19group meeting
08.03.19March meeting
15.03.19no group meeting
22.03.19FabianGate Tunable Hole Charge Qubit Formed in a Ge/Si Nanowire Double Quantum Dot Coupled to Microwave Photons
R. Wang, R. S. Deacon, J. Sun, J. Yao, C. M. Lieber and K. Ishibashi
Nano Lett., 2019, 19, 2, 1052-1060		pdf
29.03.19MirkoLab Tutorial: Scanning Electron Microscopypptx
05.04.19no group meeting
12.04.19SimonSingle Hole Spin Relaxation Probed by Fast Single-Shot Latched Charge Sensing
A. Bogan, S. Studenikin, M. Korkusinski, L. Gaudreau, P. Zawadzki, A. Sachrajda, L. Tracy, J. Reno and T. Hargett
Communications Physics 2, 17 (2019)		pdf
16.04.19TarasQCQT talk
Landau Level Wave-Functions Probed by Tunneling Spectroscopy		pptx
19.04.19Good Friday
26.04.19KrisInterferometry and Coherent Single-Electron Transport through Hybrid Superconductor-Semiconductor Coulomb Islands
A. M. Whiticar, A. Fornieri, E. C. T. O'Farrell, A. C. C. Drachmann, T. Wang, C. Thomas, S. Gronin, R. Kallaher, G. C. Gardner, M. J. Manfra, C. M. Marcus and F. Nichele
arXiv:1902.07085 (2019)		pdf
03.05.19TimLab Tutorial: Electronic Circuits, I/V Converter and Lock-inpdf
10.05.19ChristianLab Tutorial: Thermometry: From RT to uKpdf
17.05.19group meeting
24.05.19MiguelLab Tutorial: Cooling
31.05.19
FS 2019 ends		no group meeting
07.06.19MohammadLab Tutorial: Vacuumhtml
14.06.19
10:15		Henok
21.06.19Dominik
28.06.19Martin (EPFL)
 

2018 Fall Semester (HS 2018)

DateNameTopicLink
03.08.18Denis Ricardo CandidoBlurring the boundaries between trivial and topological phenomena in dots
08.08.18
Wednesday
13:30 - 1.09		group meeting
10.08.18Joao IgnacioTopological signature in Shubnikov-de Haas oscillations of 2D bulk systems
17.08.18ChristianTransport signatures of quasiparticle poisoning in a Majorana island
S. M. Albrecht, E. B. Hansen, A. P. Higginbotham, F. Kuemmeth, T. S. Jespersen, J. Nygard, P. Krogstrup, J. Danon, K. Flensberg and C. M. Marcus
PRL 118, 137701 (2017)		pdf
24.08.18LeonControlling spin-orbit interactions in silicon quantum dots using magnetic field direction
Tuomo Tanttu, Bas Hensen, Kok Wai Chan, Henry Yang, Wister Huang, Michael Fogarty, Fay Hudson, Kohei Itoh, Dimitrie Culcer, Arne Laucht, Andrea Morello and Andrew Dzurak
arXiv:1807:10415v1 (2018)		pdf
31.08.18TimSpin Lifetime and Charge Noise in Hot Silicon Quantum Dot Qubits
L. Petit, J. M. Boter, H. G. J. Eenink, G. Droulers, M. L. V. Tagliaferri, R. Li, D. P. Franke, K. J. Singh, J. S. Clarke, R. N. Schouten, V. V. Dobrovitski, L. M. K. Vandersypen and M. Veldhorst
arXiv:1803:01774v1 (2018)		pdf
07.09.18group meeting
14.09.18Spin Qubit 4
(no group meeting)

21.09.18
HS 2018
begins

FlorianElectrically Protected Valley-Orbit Qubit in Silicon
X. Mi, S. Kohler and J. R. Petta
arXiv:1805:04545 (2018)		pdf

27.09.18
Thursday

group meeting
05.10.18
12:45		FlorisFast Spin Exchange Between Two Distant Quantum Dots
Filip K. Malinowski, Frederico Martins, Thomas B. Smith, Stephen D. Bartlett, Andrew C. Doherty, Peter D. Nissen, Saeed Fallahi, Geoffrey C. Gardner, Michael J. Manfra, Charles M. Marcus and Ferdinand Kuemmeth
arXiv:1808.09736 (2018)

pdf
12.10.18KrisA Silicon Metal-Oxide Semiconductor Electron Spin-Orbit Qubit
R. m: Jock, N. T. Jacobson, P. Harvey-Collard, A. M. Mounce, V. Srinivasa, D. R. Ward, J. Anderson, R. Manigell, J. R. Wendt, M. Rudoph, T. Pluym, J. K. Gamble, A. D. Baczewski, W. M. Witzel and M. S. Carroll
Nature Communications 9 (2018)		pdf
19.10.18group meeting
26.10.18group meeting
02.11.18group meeting
09.11.18Tim

Gate-Based Single-Shot Readout of Spins in Silicon
A. West, B. Hensen, A. Jouan, T. Tanttu, C. H. Yang, A. Rossi, M. F. Gonzalez-Zalba, F. E. Hudson, A. Morello, D. J. Reilly and A. S. Dzurak
arXiv:1809.01864 (2018)

pdf
16.11.18BilalIndium as a High Cooling Power Nuclear Refrigerant for Quantum Nanoelectronics
N. Yurttagül, M. Sarsby and A. Geresdi
arXiv:1811.03034 (2018)		pdf
23.11.18TarasTwist-Controlled Resonant Tunneling in Graphene/Boron Nitride/Graphene heterostructures
A. Mishchenko, J. S. Tu, Y. Cao, R. V. Gorbachev, J. R. Wallbank, M. T. Greenaway, V. E. Morzov, S. V. Morzov, M. J. Zhu, S. L. Wong, F. Withers, C. R. Woods, Y-J. Kim, K. Watanabe, T. Taniguchi, E. E. Vdovin, O. Makarovsky, T. M. Fromhold, V. I. Fal'ko, A. K. Geim, L. Eaves and K. S. Novoselov
Nature Nanotechnology 9, 808-813 (2014)		pdf
27.11.18MirkoQCQT talk
Hydrogen Plasma Defined Graphene Edges		pdf
30.11.18Dies Academicus
04.12.18BilalQCQT talk
On-and-off Chip Cooling of a Coulomb Blockade Thermometer down to 1.8 mK		pdf
07.12.18ChristianMicrowave Cavity Detected Spin Blockade in a Few Electron Double Quantum Dot
A. J. Landig, J. V. Koski, P. Scarlino, C. Reichl, W. Wegscheider, A. Wallraff, K. Ensslin and T. Ihn
arXiv:1811.03907 (2018)		pdf
14.12.18LorinProject work presentation

21.12.18
HS 2018
ends

group meeting
28.12.18no group meeting
04.01.19group meeting
11.01.19FlorianGate-Reflectometry Dispersive Readout of a Spin Qubit in Silicon
A. Crippa, R. Ezzouch, A. Aprá, A. Amisse, L. Houtin, B. Bertrand, M. Vinet, M. Urdampilleta, T. Meunier, M. Sanquer, X. Jehl, R. Maurand and S. De Franceschi
arXiv:1811.04414 (2018)		pdf
18.01.19Qianqian
25.01.19Leon
01.02.19Luk Yi
08.02.19Arosa QSIT
15.02.19goup meeting
 

2018 Spring Semester FS 2018

DateNameTopicLink
02.02.18

Tim

Gate Tunable Parallel DOuble Quantum Dots in InAs Double-Nanowire Devices
S. Baba, S. Matsuo, H. Kamata, R.S. Deacon, A. Oiwa, K. Li, S. Jeppesen, L. Samuelson, H. Q. Xu and S. Tarucha
Appl. Phys. Lett. 111, 233513 (2017)		pdf
09.02.18no group meeting
16.02.18FlorianA Coherent Spin-Photon Interface in Silicon
X. Mi, M. Benito, S. Putz, D. M. Zajac, J. M. Taylor, Guido Burkard, and J. R. Petta
Nature 555, 599-603 (2018)		pdf
23.02.18no group meeting
28.02.18
Wednesday
10:15 - 1.09
14:15 - 3.12		Trial Talks March Meeting
02.03.18
FS 2018 begins		Fabian
09.03.18no group meeting
16.03.18MirkoSpin filling and orbital structure of the first six holes in a silicon metal-oxide-semiconductor quantum dot
S. D. Liles, R. Li, C. H. Yang, F. E. Hudson, M. Veldhorst, A. S. Dzurak, A. R. Hamilton
arXiv:1801.04494 (2018)		pptx
23.03.18Leon

A programmable two-qubit quantum processor in silicon
T. F. Watson, S. G. J. Philips, E. Kawakami, D. R. Ward, P. Scarlino, M. Veldhorst, D. E. Savage, M. G. Lagally, Mark Friesen, S. N. Coppersmith, M. A. Eriksson and L. M. K. Vandersypen
Nature 555, 633-637 (2018)

pptx
28.03.18
Wednesday
13:15 - 3.12		group meeting
30.03.18Good Friday
06.04.18BilalSplit-Channel Ballistic Transport in an InSb Nanowire
Juan Carlos Estrada Saldaña, Yann-Michel Niquet, Jean-Pierre Cleuziou, Eduardo J. H. Lee, Diana Car, Sébastien R. Plissard, Erik P. A. M. Bakkers, and Silvano De Franceschi
Nano Lett., 18, 4 (2018)		pdf
13.04.18group meeting
20.04.18no group meeting
27.04.18TarasSilicon quantum processor with robust long-range qubit couplings
Guilherme Tosi, Fahd A. Mohiyaddin, Vivien Schmitt, Stefanie Tenberg, Rajib Rahman, Gerhard Klimeck and Andrea Morello
Nature Communication 8 (2017)		pptx
04.05.18KrisSelective Area Growth of InAs Nanowire Networks
Filip Krizek, Joachim E. Sestoft, Pavel Aseev, Sara Marti-Sanchez, Saulius Vaitiekenas, Lucas Casparis, Sabbir A. Khan, Yu Liu, Tomas Stankevic, Alexander M. Whiticar, Alexandra Fursina, Frenk Boekhout, Rene Koops, Emanuele Uccelli, Leo P. Kouwenhoven, Charles M. Marcus, Jordi Arbiol, Peter Krogstrup
arXiv:1802.07808 (2018)
S. Vaitiekėnas, A. M. Whiticar, M. T. Deng, F. Krizek, J. E. Sestoft, C. J. Palmstrøm, S. Marti-Sanchez, J. Arbiol, P. Krogstrup, L. Casparis, C. M. Marcus
arXiv:1802.04210 (2018)		pdf
09.05.18
Wednesday
13:15 - 3.12		group meeting
11.05.18Ascension day
18.05.18KrisTrial Talk
22.05.2018Kris

QCQT talk
Template-Assisted Nanowire Networks for Scalable Topological Quantum Computing Schemes
based on: Nano Lett., 2018, 18(4), pp 2666

pdf
24.05.18
Thursday
16:30 - 1.09		FlorianGe Hole Spin Qubit
Hannes Watzinger, Josip Kukucka, Lada Vukusic, Fei Gao, Ting Wang, Friedrich Schäffler, Jian-Jun Zhang and Georgios Katsaros
arXiv:1802.00395 (2018)		pdf
01.06.18
FS 2018 ends		no group meeting
08.06.18
12:30		TimSurface State Dynamics Dictating Transport in InAs Nanowires
David Lynall, Selvakumar V. Nair, David Gutstein, Alexander Shik, Igor G. Savelyev, Marina Blumin and Harry E. Ruda
Nano Lett., 18 (2), 1387-1395 (2018)		pdf
15.06.18Dominik
22.06.18Bilal

Magnetotransport Properties of Graphene Nanoribbons with Zigzag Edges
Shuang Wu, Bing Liu, Cheng Shen, Si Li, Xiaochun Huang, Xiaobo Lu, Peng Chen, Guole Wang, Duoming Wang, Mengzhou Liao, Jing Zhang, Tingting Zhang, Shuopei Wang, Wei Yang, Rong Yang, Dongxia Shi, Kenji Watanabe, Takashi Taniguchi, Yugui Yao, Weihua Wang and Guangyu Zhang
Phys. Rev. Lett., 120, 216601 (2018)

pdf
29.06.18group meeting
06.07.18MirkoSpin-orbit interaction and induced superconductivity in an one-dimensional hole gas
F. K. de Vries, J. Shen, R. J. Skolasinski, M. P. Nowak, D. Varjas, L. Wang, M. Wimmer, J. Ridderbos, F. A. Zwanenburg, A. Li, S. Koelling, M. A. Verheijen, E. P. A. M. Bakkers and L. P. Kouwenhoven
arXiv:1806.01815v1 (2018)		pdf
13.07.18TarasObservation of half-integer thermal Hall conductance
Mitali Banerjee, Moty Heiblum, Vladimir Umansky, Dima E. Feldmann, Yuval Oreg and Ady Stern
Nature 559, 205-210 (2018)		pdf
20.07.18no group meeting
27.07.18no group meeting
 

2017 Fall Semester (HS 2017)

DateNameTopicLink
22.09.17TimConduction Band Offset and Polarization Effects in InAs Nanowire Polytype Junctions
I-Ju Chen, Sebastian Lehmann, Malin Nilsson, Pyry Kivisaari, Heiner Linke, Kimberly A. Dick, Claes Thelander
Nano Lett., 2017, 17 (2), 902-908		pdf
29.09.17ChristianQuantum Hall effect & Topologypptx
06.10.17group meeting
11.10.17Floris

QCQT talk
Hole Spins in Ge-Si Core-Shell Nanowires
Florian Froning, Mirko Rehmann, Dominik Zumbühl, Floris Braakman, Joost Ridderbos, Matthias Brauns, Floris Zwanenburg, Ang Li, Erik Bakkers

pptx
13.10.17Liuqi

Negative Spin Exchange in a Multielectron Quantum Dot
Federico Martins, Filip K. Malinowski, Peter D. Nissen, Saeed Fallahi, Georey C. Gardner, Michael J. Manfra, Charles M. Marcus and Ferdinand Kuemmeth
arXiv:1706.01007 (2017)

pdf
20.10.17no group meeting
27.10.17no group meeting
03.11.17FlorianElectrical Modulation of Weak-Antilocalization and Spin-Orbit Interaction in Dual Gated Ge/Si core/Shell nanowires
R. Wang, R. S. Deacon, J. Yao, C. M. Lieber and K. Ishibashi
Semiconductor Science and Technology 32, 094002 (2017)		pdf
10.11.17
no group meeting
17.11.17BilalThermal Conductance of a Single-Electron Transistor
B. Dutta, J. T. Peltonen, D. S. Antonenko, M. Meschke, M. A. Skvortsov, B. Kubala, J. König, C. B. Winkelmann, H. Courtois and J. P. Pekola
Phys. Rev. Lett. 119, 077701 (2017)		pdf
24.11.17Dies Academicus
01.12.17
11:00		group meeting
05.12.17ChristianQCQT talk
Evolution of the integer quantum Hall bulk spectrum into chiral edges
Christian Scheller, Taras Patlatiuk, Dominik Zumbühl, Y. Tserkovnjak, D. Hill, G. Barak, A. Yacoby, B. I. Halperin, C. Egues, D. Loss, J. Klinovaja, L.N. Pfeiffer, K. W. West		pptx
08.12.17LeonQuantum Simulation of a Fermi-Hubbard model using a semiconductor quantum dot array
T. Hensgens, T. Fujita, L. Janssen, Xia Li, C. J. Van Diepen, C. Reichl, W. Wegscheider, S. Das Sarma and L. M. K. Vandersypen
Nature 548, 70-73 (2017)		pptx
15.12.17MirkoGiant Valley-Isospin Conductance Oscillations in Ballistic Graphene
Clevin Handschin, Peter Makk, Peter Rickhaus, Romain Maurand, Kenji Watanabe, Takashi Taniguchi, Klaus Richter, Ming-Hao Liu and Christian Schönenberger
Nano Lett., 2017, 17 (9), 5389-5393		pptx
22.12.17
HS17 ends		group meeting
05.01.18group meeting
12.01.18Taras

Electrical generation and detection of spin waves in a quantum Hall ferromagnet
D. S. Wei, T. Van der Sar, S. H. Lee, K. Watanabe, T. Taniguchi, B.I. Halperin, and A. Yacoby
arXiv:1801.08534 (2018)

pptx
19.01.18Christian
22.01.18ChristianQStarter: Basel Cryogenicspptx
26.01.18KrisScaling of Majorana Zero-Bias Conductance Peaks
F. Nichele, A.C.C. Drachmann, A.M. Whiticar, E.C.T. O`Farrell, H.J. Suominen, A. Fornieri, T. Wang, G.C. Gardner, C. Thomas, A.T. Hatke, P. Krogstrup, M.J. Manfra, K. Flensberg, and C.M. Marcus
Phys. Rev. Lett. 119, 136803 (2017)

 

pptx
 

2017 Spring Semester (FS2017)

DateNameTopicLink
06.01.17no group meeting
13.01.17Liuqi
20.01.17ChristianQuantum Hall Spin Diode
J.P. Eisenstein, L.N. Pfeiffer and K.W. West
arXiv:1701.04463v1, (2017)
27.01.17FlorianStrong coupling of a single electron in silicon to a microwave photon
X. Mi, J. V. Cady, D. M. Zajac, P. W. Deelman, J. R. Petta
Science 355, 155-158 (2017)
03.02.17
no group meeting (QSIT Arosa GM)
10.02.17TarasEdge state spectroscopy in GaAs quantum wires
17.02.17
no group meeting
24.02.17
FS17 begins		group meeting
03.03.17Leon

Anisotropy and suppression of spin-flip tunneling
A. Hofmann, V. F. Maisi, T. Krähenmann, C. Reichl, W. Wegschneider, K. Ensslin and T. Ihn
arXiv:1612.06199, (2016)

10.03.17Mirko

Resonant tunneling between the chiral Landau states of twisted graphene lattices
M. T. Greenaway, E. E. Vdovin, A. Mishchenko, O. Makarovsky, A. Patane, J. R. Wallbank, Y. Cao, A. V. Kretinin, M. J. Zhu, S. V. Morozov, V. I. Fal'ko, K. S. Novoselov, A. K. Geim, T. M. Fromhold and L. Eaves
Nature Physics 11.12 (2015): 1057-1062

17.03.17MarioOn-chip magnetic cooling of a nanoelectronic device
D. I. Bradley, A. M. Guénault, D. Gunnarsson, R. P. Haley, S. Holt, A. T. Jones, Yu. A. Pashkin, J. Penttilä, J. R. Prance, M. Prunnila and L. Roschier
arXiv:1611.02483, (2016)		pptx
21.05.17PirminQCQT talk
Stretchable persistent spin helices - experiments and theory		pptx
24.03.17group meeting
31.03.17TimConductance through a helical state in an InSb nanowire
J. Kammhuber, M. C. Cassidy, F. Pei, M. P. Nowak, A. Vuik, D. Car, S. R. Plissard, E. P. A. M. Bakkers, M. Wimmer and L. P. Kouwenhoven
arXiv:1701.06878v1, (2017)		pdf
07.04.17BilalEngineering quantum confinement in semiconducting van-der-Waals heterostructure
K. Wang, T. Taniguchi, K. Watanabe and P. Kim
arXiv:1610.02929, (2016)		pdf
14.04.17no group meeting (Good Friday)
21.04.17group meeting
28.04.17Liuqi

Atomically engineered electron spin lifetimes of 30 s silicon
T. F. Watson, B. Weber, Y.-L. Hsueh, L. C. L. Hollenberg, R. Rahman and M. Y. Simmons
Science Advances 3.3 (2017): e1602811.

pdf
02.05.17MarioQCQT talk
Sub-gap bound state in normal metal-insulator-superconductor junctions		pdf
05.05.17no group meeting
12.05.17ChristianLandau Level Spectroscopy (Part VII) - Tunneling intensity predictions, quantum wire mode reconstruction, Fermi-level pinning and exchange interactions
19.05.17KrisSpin-orbit interaction in a dual gated InAs/GaSb quantum well
Arjan J. A. Beukman, Folket K. de Vries, Jasper van Veen, Rafal Skolasinski, Michael Wimmer, Fanming Qu, David T. de Vries, Binh-Minh Nguyen, Wei Yi, Andrey A. Kiselev, Marko Sokolich, Michael J. Manfra, Fabrizio Nichele, Charles M. Marcus, Leo P. Kouwenhoven
arXiv:1704.03482, (2017)		pptx
24.05.17
Wednesday
11:00, 4.1		Florian and Timtrials talks QSIT junior meeting
26.05.17no group meeting (Friday after Ascension)
02.06.17
FS17 ends		Mirko

Electrically tunable transverse magnetic field focusing in graphene
Thiti Taychatanapat, Kenji Watanabe, Takashi Taniguchi and Pablo Jarillo-Herrero
Nature Physics 9, 225-229 (2013)

pdf
09.06.17
10:15, 1.09		Dominik
16.06.17group meeting
23.06.17FlorianHigh-fidelity entangling gate for double-quantum-dot spin qbits
John M. Nichol, Lucas A. Orona, Shannon P. Harvey, Saeed Fallahi, Geoffrey C. Garner, Michael J. Manfra and Amir Yacoby
npj Quantum Information 3 (2017)		pdf
30.06.17TarasInducing superconducting correlation in quantum Hall edge states
Gil-Ho lee, Ko-Fan Huang, Dimitri K. Efetov, Di S. Wei, Sean Hart, Takashi Taniguchi, Kenji Watanabe, Amir Yacoby and Philip Kim
Nature Physics (2017) doi:10.1038/nphys4084		pptx
07.07.17group meeting
14.07.17BilalEdge Conduction in Monolayer WTe2
Zaiyao Fei, Tauno Palomaki, Sanfeng Wu, Wenjin Zhao, Xinghan Cai, Bosong Sun, Paul Nguyen, Joseph Finney, Xiaodong Xu and David H. Cobden
Nature Physics 13, 677 (2017), doi:10.1038/nphys4091		pdf
21.07.17
group meeting
28.07.17group meeting
04.08.17no group meeting
11.08.17Leon

Robust Single-Shot Spin Measurement with 99.5% Fidelity in a Quantum Dot Array
Takashi, Matthieu R. Delbecq, Tomohiro Otsuka, Peter Stano, Shinichi Amaha, Jun Yoneda, Akito Noiri, Kento Kawasaki, Kenta Taketa, Giles Allison, Arne Ludwig, Andreas D. Wieck, Daniel Loss and Seigo Tarucha
Phys. Rev. Letters 119, 017701 (2017)

pptx
18.08.17no group meeting
25.08.17
group meeting
01.09.17Kris
08.09.17group meeting
15.09.17group meeting