Quantum Coherence Lab

Zumbühl Group

 
 

Gate-defined quantum dot in a strong in-plane magnetic field: spin-orbit and g-factor effects
P. Stano, C.-H. Hsu, M. Serina, L. C. Camenzind, D. M. Zumbühl D. Loss
submitted Aug 13, 2018, arxiv:1808.03963, manuscript pdf

Ambipolar quantum dots in undoped silicon fin field-effect transistors
A. V. Kuhlmann, V. Deshpande, L. C. Camenzind, D. M. Zumbühl, A. Fuhrer
Appl. Phys. Lett. 113,  122107 (Sep 21, 2018), manuscript pdf

Single, double, and triple quantum dots in Ge/Si nanowires
F. N. M. Froning, M. K. Rehmann, J. Ridderbos, M. Brauns, F. A. Zwanenburg, A. Li, E. P. A. M. Bakkers, D. M. Zumbühl, and F. R. Braakman,
Appl. Phys. Lett. 113, 073102 (Aug 15, 2018), manuscript pdf

Spectroscopy of Quantum-Dot Orbitals with In-Plane Magnetic Fields
L. C. Camenzind, L. Yu, P. Stano, J. Zimmermann, A. C. Gossard, D. Loss and D. M. Zumbühl
submitted Mar 31, 2018, arxiv:1804.00162, manuscript pdf, supporting material pdf

Gate-defined quantum dot in a strong in-plane magnetic field: orbital effects
P. Stano, C.-H. Hsu, L. C. Camenzind, L. Yu, D. M. Zumbühl and D. Loss
submitted Mar 31, 2018, arxiv:1804.00128, manuscript pdf

Template-assisted nanowire networks for scalable topological quantum computing schemes
M. Friedl, K. Cerveny, P. Weigele, G. Tütüncüoglu, S. Martí-Sánchez, C. Huang, T. Patlatiuk, H. Potts, Z. Sun, M. O. Hill, L. Güniat, W. Kim, M. Zamani, V. G. Dubrovskii, J. Arbiol, L. J. Lauhon, D. Zumbuhl, A. Fontcuberta i Morral
Nano Letters 18, 2666 (March 2018), arxiv:1803.00647

Evolution of the quantum Hall bulk spectrum into chiral edge states
T. Patlatiuk, C.P. Scheller, D. Hill, Y. Tserkovnyak, G. Barak, A. Yacoby, L. N. Pfeiffer, K. W. West, and D. M. Zumbühl
Nature Communications 9, 3692 (Sep 12, 2018), supplementary link, peer review link
UniNews "Probing individual edge states with unprecedented precision"  ... 
UniBasel Tweet

Symmetry Breaking of the Persistent Spin Helix in Quantum Transport
P. J. Weigele, D. C. Marinescu, F. Dettwiler, J. Fu, S. Mack, J. C. Egues, D. D. Awschalom,and D. M. Zumbühl
submitted Jan 17, 2018, arxiv:1801.05657, manuscript pdf, supporting material pdf

Hyperfine-phonon spin relaxation in a single-electron GaAs quantum dot
L. C. Camenzind, L. Yu, P. Stano, J. Zimmermann, A. C. Gossard, D. Loss and D. M. Zumbühl
Nature Communications 9, 2454 (Aug 27, 2018), supplementary link, peer review link
UniNews "New mechanism of electron spin relaxation observed"  ... 
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On-and-off chip cooling of a Coulomb blockade thermometer down to 2.8 mK (Editor's pick)
M. Palma, C. P. Scheller, D. Maradan, A. V. Feshchenko, M. Meschke, and D. M. Zumbühl
Appl. Phys. Lett. 111, 253101 (Dec 2017), manuscript pdf, supporting material pdf
UniNews: 20.12.2017: "The Coldest Chip in the World"
Scilight: 19.12.2017: "Magnetic cooling achieves record low temperatures in Coulomb blockade thermometers"

Evidence for Disorder Induced Delocalization in Graphite
L. Casparis, A. Fuhrer, D. Hug, D. Kölbl, and D. M. Zumbühl
submitted Mar 16, 2017, arxiv:1301.2727v2, manuscript pdf, supporting materials pdf

Anisotropic Etching of Graphite and Graphene in a Remote Hydrogen Plasma
D. Hug, S. Zihlmann, M. K. Rehmann, Y. B. Kalyoncu, T. N. Camenzind, L. Marot, K. Watanabe, T. Taniguchi, and D. M. Zumbühl
npj 2D Materials and Applications 1, 21 (2017), manuscript pdf, supporting materials pdf

Magnetic cooling for microkelvin nanoelectronics on a cryofree platform (Editor's pick)
M. Palma, D. Maradan, L. Casparis, T.-M. Liu, F. Froning, D. M. Zumbühl
Rev. Sci. Instr. 88, 043902 (2017), manuscript pdf, supporting materials pdf

Stretchable persistent spin helices in GaAs quantum wells
F. Dettwiler, J. Fu, S. Mack, P. J. Weigele, J. C. Egues, D. D. Awschalom and D. M. Zumbühl
Phys. Rev. X 7, 031010 (2017), manuscript pdf, supporting material pdf
UniNews 19.07.2017: "Manipulating electron spins without loss of information"

Intrinsic Metastabilities in the Charge Configuration of a Double Quantum Dot
D. E. F. Biesinger, C. P. Scheller, B. Braunecker, J. Zimmerman, A. C. Gossard, D. M. Zumbühl
Phys. Rev. Lett. 115, 106804 (September 2015). pdf, supplementary pdf
UniNews 7.9.2015: "Impoved Stability of Electron Spins in Qubits"

Tunnel junction thermometry down to millikelvin temperatures
A. V. Feshchenko, L. Casparis, I. M. Khaymovich, D. Maradan, O.-P. Saira, M. Palma, M. Meschke, J. P. Pekola, and D. M. Zumbühl
Phys. Rev. Appl. 4, 034001 (September 2015). pdf
APS Physics Synopsis: On-Chip Thermometer

Spontaneous Helical Order of Electron and Nuclear Spins in a Luttinger Liquid
C. P. Scheller, B. Braunecker, D. Loss, and D. M. Zumbühl
SPS Progress in Physics 44, 23 (Sep 2014) linkpdf

Hybrid Quantum Dot-2D Electron Gas Devices for Coherent Optoelectronics
F. Dettwiler, P. Fallahi, D. Scholz, E. Reiger, D. Schuh, A. Badolato, W. Wegscheider, and D. M. Zumbühl
arxiv:1403.7775, manuscript pdf

Silver-Epoxy Microwave Filters and Thermalizers for Millikelvin Experiments
C. P. Scheller, S. Heizmann, K. Bedner, D. Giss, M. Meschke, D. M. Zumbühl, J. D. Zimmerman, and A. C. Gossard
Appl. Phys. Lett. 104, 211106 (May 2014, open access). pdf, supporting materials pdf

Possible Evidence for Helical Nuclear Spin Order in GaAs Quantum Wires (Editor's suggestion)
C. P. Scheller, T.-M. Liu, G. Barak, A. Yacoby, L. N. Pfeiffer, K. W. West, and D. M. Zumbühl
Phys. Rev. Lett.
 112, 066801 (February 2014). pdf
UniNews 11.2.2014: Helical electron and nuclear spin order in quantum wires

Physics World article 21.2.14: Ordering electron and nuclear spins in quantum wires

Physik Journal 4/2014: Brennpunkt "Spins in Spiralform?", by A. Holleitner, TU Munich

GaAs Quantum Dot Thermometry Using Direct Transport and Charge Sensing
D. Maradan, L. Casparis, T.-M. Liu, D. E. F. Biesinger, C. P. Scheller, D. M. Zumbühl, J. Zimmerman, and A. C. Gossard
Journal of Low Temperature Physics 175, 784 (April 2014, open access), pdf

Transport spectroscopy of disordered graphene quantum dots etched into a single graphene flake
D. Kölbl, D. M. Zumbühl
submitted Dec 18, 2012, arxiv:1307.8163pdf

Pure hydrogen low-temperature plasma exposure of HOPG and graphene: Graphane formation?
B. Eren, D. Hug, L. Marot, R. Pawlak, M. Kisiel, R. Steiner, D. M. Zumbühl, and E. Meyer
Beilstein Journal of Nanotechnology 3, 852 (2012). pdf

Metallic Coulomb Blockade Thermometry down to 10 mK and below
L. Casparis, M. Meschke, D. Maradan, A. C. Clark, C. Scheller, K. K. Schwarzwälder, J. P. Pekola and D. M. Zumbühl
Rev. Sci. Instr. 83, 083903 (2012). pdf
UniNews 29.8.2012: Unerwartete Kühleffekte rücken Quantencomputer näher

Breakdown of the Korringa Law of Nuclear Spin Relaxation in Metallic GaAs (Editor's suggestion)
D. Kölbl, D. M. Zumbühl, A. Fuhrer, G. Salis, and S. F. Alvarado
Phys. Rev. Lett. 109, 086601 (2012). pdf
UniNews 29.8.2012: Unerwartete Kühleffekte rücken Quantencomputer näher

Method for Cooling Nanostructures to Microkelvin Temperatures
A. C. Clark, K. K. Schwarzwälder, T. Bandi, D. Maradan, D. M. Zumbühl
Rev. Sci. Instr. 81, 103904 (2010). pdf

Spin-Dependent Tunneling of Single Electrons into an Empty Quantum Dot
S. Amasha, K. MacLean, I. P. Radu, D. M. Zumbühl, M. A. Kastner, M. P. Hanson and A. C. Gossard,
Phys. Rev. B78, 041306R (2008). pdf

Electrical Control of Spin Relaxation in a Quantum Dot 
S. Amasha, K. MacLean, I. P. Radu, D. M. Zumbühl, M. A. Kastner, M. P. Hanson and A. C. Gossard, 
Phys. Rev. Lett. 100, 046803 (2008). pdf
UniNews 31.1.2008: Stabile Elektronen-Spins rücken Quantencomputer in greifbare Nähe

Fractional Quantum Hall Effect in a Quantum Point Contact at Filling Fraction 5/2
J. B. Miller, I. Radu, D. M. Zumbühl, E. M. Levenson-Falk, M. A. Kastner, C. M. Marcus, L. N. Pfeiffer and K. W. West,
Nature Physics 3, 561 (2007). pdf
UniNews 19.7.2007: Experiment rückt topologischem Quantenrechner einen Schritt näher

Energy Dependent Tunneling in a Quantum Dot
K. MacLean, S. Amasha, I. P. Radu, D. M. Zumbühl, M. A. Kastner, M. P. Hanson and A. C. Gossard, 
Phys. Rev. Lett. 98, 36802 (2007). pdf

Suface-gated quantum Hall effect in an InAs heterostructure
Ian J. Gelfand, S. Amasha, D. M. Zumbühl, M. A. Kastner, C. Kadow and A. C. Gossard
App. Phys. Lett. 
88, 252105 (2006). pdf

Toward the manipulation of a single spin in an AlGaAs/GaAs single electron transistor
S. Amasha, K. MacLean, I. P. Radu, D. M. Zumbühl, M. A. Kastner, M. P. Hanson and A. C. Gossard, 
Proc. SPIE 6244, 624419 (2006) pdf

Asymmetry of Nonlinear Transport and Electron Interactions in Quantum Dots
D. M. Zumbühl, C. M. Marcus, M. P. Hanson and A. C. Gossard, 
Phys. Rev. Lett. 96, 206802 (2006). pdf

Conductance Fluctuations and partially broken Spin Symmetries in Quantum Dots
D. M. Zumbühl, J. B. Miller, D. Goldhaber-Gordon, C. M. Marcus, J. S. Harris, Jr., K. Campman and A. C. Gossard, 
Phys. Rev. B72, 081305 (2005). pdf

Cotunneling Spectroscopy in Few-Electron Quantum Dots
D. M. Zumbühl, C. M. Marcus, M. P. Hanson and A. C. Gossard, 
Phys. Rev. Lett. 93, 256801 (2004). pdf

Coherence and Spin in GaAs Quantum Dots
D. M. Zumbühl, Ph. D. Thesis, Harvard University (2004). pdf

Orbital Effects of In-Plane Magnetic Fields Probed by Mesoscopic Conductance Fluctuations
D. M. Zumbühl, J. B. Miller, C. M. Marcus, V. I. Fal'ko, T. Jungwirth and J. S. Harris, Jr. , 
Phys. Rev. B69, 121305 (2004). pdf

Gate-Controlled Spin-Orbit Quantum Interference Effects In Lateral Transport
J. B. Miller, D. M. Zumbühl, C. M. Marcus, Y. B. Lyanda-Geller, G. Goldhaber-Gordon, K. Campman and A. C. Gossard, 
Phys. Rev. Lett. 90, 076807 (2003). pdf

Spin-Orbit Coupling, Antilocalization and Parallel Magnetic fields in Quantum Dots
D. M. Zumbühl, J. B. Miller, C. M. Marcus, K. Campman and A. C. Gossard, 
Phys. Rev. Lett. 89, 276803 (2002). pdf

Turbulence in Mode-Locked Lasers
F. X. Kärtner, D. M. Zumbühl and N. Matuschek, 
Phys. Rev. Lett. 82, 4428 (1999). pdf