QuantumMatterDevices: August 2009

Sunday, August 30, 2009

Publication Date (Web): 28 Aug 2009 (Communication)

DOI: 10.1021/ja905125b

Full Text HTML | PDF w/ Links | Hi-Res PDF | Abstract

Nano Lett 08/29/09

Electrostatically Confined Quantum Rings in Bilayer Graphene

M. Zarenia, J. M. Pereira, F. M. Peeters, and G. A. Farias

Publication Date (Web): 25 Aug 2009 (Letter)

DOI: 10.1021/nl902302m

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Saturday, August 29, 2009

Title: Enhanced thermoelectric figure of merit in edge disordered zigzag
graphene nanoribbons
Authors: H. Sevincli, G. Cuniberti
\\ ( http://arxiv.org/abs/0908.3207 , 201kb)

Title: Low-noise top-gate graphene transistors
Authors: G. Liu, W. Stillman, S. Rumyantsev, Q. Shao, M. Shur and A.A. Balandin
\\ ( http://arxiv.org/abs/0908.3304 , 391kb)

! Aharonov-Bohm interference in topological insulator nanoribbons
Authors: Hailin Peng, Keji Lai, Desheng Kong, Stefan Meister, Yulin Chen,
Xiao-Liang Qi, Shou-Cheng Zhang, Zhi-Xun Shen, Yi Cui
\\ ( http://arxiv.org/abs/0908.3314 , 348kb)

Title: Quantum interface between light and atomic ensembles
Authors: K. Hammerer, A.S. Sorensen, E.S. Polzik
Categories: quant-ph cond-mat.other
Comments: to appear in Reviews of Modern Physics; 56 pages, 22 figures, 3.3MB;
\\ ( http://arxiv.org/abs/0807.3358 , 2325kb)

Title: Signature of electronic excitations in the Raman spectrum of graphene
Authors: Oleksiy Kashuba and Vladimir I. Fal'ko
Categories: cond-mat.mes-hall
Comments: 4 pages, 2 figures, revised and improved
\\ ( http://arxiv.org/abs/0906.5251 , 98kb)

arXiv 08/27/09

Title: Reducing the thermal conductivity of carbon nanotubes below the random
isotope limit
Authors: Gabriel Stoltz (CERMICS), Natalio Mingo (LITEN, CEA Grenoble) and
Francesco Mauri (IMPMC)
\\ ( http://arxiv.org/abs/0908.3958 , 107kb)

Title: Hot Topics in Cold Gases
Authors: Robert Seiringer
\\ ( http://arxiv.org/abs/0908.3686 , 225kb)

Nature Photonics 08/2009

Optical spectroscopy: Clever calibration pp491 - 492
Thomas R. Schibli
doi:10.1038/nphoton.2009.150
A spectroscopic method that combines the accuracy of optical frequency combs with the rapid tuning of an external-cavity diode laser opens the door to fast, broadband spectral characterization.
Full Text | PDF

Quantum optics: Putting quantum memories on ice pp497 - 498
Josh Nunn
doi:10.1038/nphoton.2009.152
A new idea for 'freezing-out' unwanted losses in an atomic memory could make it possible to store light pulses on-chip for several minutes, increasing the capability of optical quantum computing.
Full Text | PDF

Nanophotonics: Probing near-field thermal radiation pp492 - 494
Achim Kittel
doi:10.1038/nphoton.2009.151
New insights into the behaviour of radiative heat transfer at the nanoscale have now been made, thanks to highly precise measurements made using scanning probe microscopy.
Full Text | PDF

Radiative heat transfer at the nanoscale pp514 - 517
Emmanuel Rousseau, Alessandro Siria, Guillaume Jourdan, Sebastian Volz, Fabio Comin, Joel Chevrier and Jean-Jacques Greffet
doi:10.1038/nphoton.2009.144
Radiation transfer on the nanoscale across gaps varying between 30 nm and 2.5 µm is investigated experimentally. The enhancement of heat transfer by evanescent wave contributions may pave the way for the design of sub-micrometre nanoscale heaters and radiators.
Abstract | Full Text | PDF

Thermoelectric coolers pp541 - 542
Neil Savage
doi:10.1038/nphoton.2009.158
Cooling and stabilizing the temperature of optoelectronic devices, such as semiconductor diode lasers and photodetectors, is often important for optimizing their performance. Neil Savage looks at thermoelectric coolers based on the Peltier effect that are designed for this task.
Full Text | PDF

VJNS 08/28/09

Graphene magnetoresistance in a parallel magnetic field: Spin polarization effect
E. H. Hwang and S. Das Sarma
Physical Review B 80,075417 (2009) (5 pages)

Abstract Full Text: [ PDF (118 kB) ] Order

Generation of valley polarized current in bilayer graphene
D. S. L. Abergel and Tapash Chakraborty
Applied Physics Letters 95,062107 (2009) (3 pages)

Abstract Full Text: [ HTML Sectioned HTML PDF (469 kB) ]

Ultraviolet Raman microscopy of single and multilayer graphene
Irene Calizo, Igor Bejenari, Muhammad Rahman, Guanxiong Liu, and Alexander A. Balandin
Journal of Applied Physics 106,043509 (2009) (5 pages)

Abstract Full Text: [ HTML Sectioned HTML PDF (364 kB) ]

Linear response of doped graphene sheets to vector potentials
A. Principi, Marco Polini, and G. Vignale
Physical Review B 80,075418 (2009) (10 pages)

Abstract Full Text: [ PDF (406 kB) ] Order

Friday, August 28, 2009

APL 08/28/09

Optical contrast and clarity of graphene on an arbitrary substrate
Xuefeng Wang, Ming Zhao, and David D. Nolte
Appl. Phys. Lett. 95, 081102 (2009) (3 pages)
Abstract Full Text: [ HTML Sectioned HTML PDF (263 kB) ]

!!Ultralow noise field-effect transistor from multilayer graphene
Atindra Nath Pal and Arindam Ghosh
Appl. Phys. Lett. 95, 082105 (2009) (3 pages)
Abstract Full Text: [ HTML Sectioned HTML PDF (280 kB) ] Order

P-N junction with donor and acceptor encapsulated single-walled carbon nanotubes
Toshiaki Kato, Rikizo Hatakeyama, Jun Shishido, Wataru Oohara, and Kazuyuki Tohji
Appl. Phys. Lett. 95, 083109 (2009) (3 pages)
Abstract Full Text: [ HTML Sectioned HTML PDF (453 kB) ]

Experimental study of microwave radiation of carbon nanotube arrays
Qi Zhu, Weifeng Liu, Hualiang Zhang, and Hao Xin
Appl. Phys. Lett. 95, 083119 (2009) (3 pages)
Abstract Full Text: [ HTML Sectioned HTML PDF (376 kB) ] Order

PRL 08/28/09

Possible Stimulation of Nuclear Decay by Superfluid Helium
A. L. Barabanov
Published 27 August 2009
092501 Abstract Full Text: [ PDF (98 kB) ]

Large Violation of the Wiedemann-Franz Law in Luttinger Liquids
Arti Garg, David Rasch, Efrat Shimshoni, and Achim Rosch
Published 24 August 2009
096402 Abstract Full Text: [ PDF (288 kB) ]

Erratum: Impact of Impurities on the Thermal Conductivity of Semiconductor Nanostructures: First-Principles Theory [Phys. Rev. Lett. 102, 255502 (2009)]
T. M. Gibbons and S. K. Estreicher
Published 26 August 2009
099904 Abstract Full Text: [ PDF (123 kB) ]

PHYSICS 08/28/09

Blackholes and Hawkin Radiation in Superconducting Circuits:
http://physics.aps.org/synopsis-for/10.1103/PhysRevLett.103.087004

Addressing the crowd August 24, 2009 [Synopsis on Phys. Rev. Lett. 103, 080404 (2009)]

Critical exponent for the quantum Hall transition

Keith Slevin and Tomi Ohtsuki Phys. Rev. B 80, 041304 (Published July 9, 2009)

http://physics.aps.org/synopsis-for/10.1103/PhysRevB.80.041304

Unique bonding of Hydrogen containing solids

http://physics.aps.org/articles/v2/65

Atypical is normal at the metal-insulator transition

Thomas Vojta, Physics 2, 66 (2009) – Published August 3, 2009

Mesoscopics Nanophysics Statistical Mechanics

Quantum states in disordered solids are characterized by wild spatial fluctuations. As a result, the behavior of a single typical wave function differs markedly from the ensemble average.

Quasiparticle doppelgängers

Matthew Grayson, Physics 2, 56 (2009) – Published June 29, 2009

Semiconductor Physics Mesoscopics

By exploiting the concept of particle-hole duality, one can realize a point junction between integer and fractional quantum Hall phases, which constitutes a crucial building block towards possible applications of the quantum Hall effect.

Viewpoint

Observing unification on a grand scale

Aaron Pierce, Physics 2, 44 (2009) – Published May 26, 2009

Particles & Fields Astrophysics

New connections have been made between experimental astrophysical signatures and theories that unify the electromagnetic, weak, and strong forces, called grand unified theories.

Is a room-temperature, solid-state quantum computer mere fantasy?

Marshall Stoneham, Physics 2, 34 (2009) – Published April 27, 2009

Quantum Information Spintronics

Creating a practical solid-state quantum computer is seriously hard. Getting such a computer to operate at room temperature is even more challenging. Is such a quantum computer possible at all? If so, which schemes might have a chance of success?

Sizing up domain walls in bilayer graphene

Published August 10, 2009

Graphene

The mobility of charge carriers in epitaxial bilayer graphene may be limited by structural domains.

Artificial graphene

Published July 6, 2009

Graphene Mesoscopics

Can a patterned semiconducting heterostructure yield a better “graphene”?

Thursday, August 27, 2009

arXiv 08/26/09

Title: Quantum Hall Phase Diagram of Second Landau-level Half-filled Bilayers:
Abelian versus Non-Abelian States
Authors: Michael R. Peterson and S. Das Sarma
The quantum Hall phase diagram of the half-filled bilayer system in the
second Landau level is studied as a function of tunneling and layer separation
using exact diagonalization. We make the striking prediction that bilayer
structures would manifest two distinct branches of incompressible fractional
quantum Hall effect (FQHE) corresponding to the Abelian 331 state (at moderate
to low tunneling and large layer separation) and the non-Abelian Pfaffian state
(at large tunneling and small layer separation). The observation of these two
FQHE branches and the quantum phase transition between them will be compelling
evidence supporting the existence of the non-Abelian Pfaffian state in the
second Landau level.
\\ ( http://arxiv.org/abs/0908.3481 , 559kb)

\\
arXiv:0908.3483
Date: Tue, 25 Aug 2009 19:34:28 GMT (504kb,D)

Title: Non-equilibrium dynamics of interacting Fermi systems in quench
experiments
Authors: Mehrtash Babadi, David Pekker, Rajdeep Sensarma, Antoine Georges,
Eugene Demler
\\ ( http://arxiv.org/abs/0908.3483 , 504kb)

Title: Discovery (theoretical prediction and experimental observation) of a
large-gap topological-insulator class with spin-polarized single-Dirac-cone
on the surface
Authors: Y. Xia, D. Qian, D. Hsieh, L. Wray, A. Pal, H. Lin, A. Bansil, D.
Grauer, Y. S. Hor, R. J. Cava, and M. Z. Hasan
Journal-ref: Y. Xia et.al., NATURE PHYSICS 5, 398-402 (2009)
DOI: 10.1038/nphys1274
\\
Recent theories and experiments have suggested that strong spin-orbit
coupling effects in certain band insulators can give rise to a new phase of
quantum matter, the so-called topological insulator, which can show macroscopic
entanglement effects. Such systems feature two-dimensional surface states whose
electrodynamic properties are described not by the conventional Maxwell
equations but rather by an attached axion field, originally proposed to
describe strongly interacting particles. It has been proposed that a
topological insulator with a single spin-textured Dirac cone interfaced with a
superconductor can form the most elementary unit for performing fault-tolerant
quantum computation. Here we present an angle-resolved photoemission
spectroscopy study and first-principle theoretical calculation-predictions that
reveal the first observation of such a topological state of matter featuring a
single-surface-Dirac-cone realized in the naturally occurring Bi$_2$Se$_3$
class of materials. Our results, supported by our theoretical predictions and
calculations, demonstrate that undoped compound of this class of materials can
serve as the parent matrix compound for the long-sought topological device
where in-plane surface carrier transport would have a purely quantum
topological origin. Our study further suggests that the undoped compound
reached via n-to-p doping should show topological transport phenomena even at
room temperature.
\\ ( http://arxiv.org/abs/0908.3513 , 426kb)

Title: Fermi Surface Topological Invariants for Time Reversal Invariant
Superconductors
Authors: Xiao-Liang Qi, Taylor L. Hughes, and Shou-Cheng Zhang
\\ ( http://arxiv.org/abs/0908.3550 , 112kb)

Title: Observation of Magnetic Monopoles in Spin Ice
Authors: Hiroaki Kadowaki, Naohiro Doi, Yuji Aoki, Yoshikazu Tabata, Taku J.
Sato, Jeffrey W. Lynn, Kazuyuki Matsuhira, Zenji Hiroi
\\ ( http://arxiv.org/abs/0908.3568 , 627kb)

Title: Chiral confinement in quasirelativistic Bose-Einstein condensates
Authors: M. Merkl, A. Jacob, F. E. Zimmer, P. Ohberg and L. Santos
\\ ( http://arxiv.org/abs/0908.3631 , 900kb)
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Title: Oscillatory crossover from two dimensional to three dimensional
topological insulators
Authors: Chao-Xing Liu, HaiJun Zhang, Binghai Yan, Xiao-Liang Qi, Thomas
Frauenheim, Xi Dai, Zhong Fang and Shou-Cheng Zhang
\\ ( http://arxiv.org/abs/0908.3654 , 1522kb)

Title: Large violation of Wiedemann Franz law in Luttinger liquids
Authors: Arti Garg, David Rasch, Efrat Shimshoni, Achim Rosch
Journal-ref: Phys. Rev. Lett. 103, 096402 (2009)
DOI: 10.1103/PhysRevLett.103.096402
\\ ( http://arxiv.org/abs/0903.3054 , 107kb)

Title: Field-induced Bose-Einstein Condensation of triplons up to 8 K in
Sr3Cr2O8
Authors: A.A. Aczel, Y. Kohama, C. Marcenat, F. Weickert, O.E.
Ayala-Valenzuela, M. Jaime, R.D. McDonald, S.D. Selesnic, H.A. Dabkowska, and
G.M. Luke
Comments: 4 pages, 3 figures, EPR results added and susceptibility discussion
updated, submitted to PRL
\\ ( http://arxiv.org/abs/0908.3049 , 360kb)

Science 8/28/09

Spectroscopic Fingerprint of Phase-Incoherent Superconductivity in the Underdoped Bi₂Sr₂CaCu₂O₈₊
J. Lee et al.
Scanning tunnelling spectroscopy reveals the pseudogap regime of the cuprates to be an incoherent d-wave superconductor.
http://www.sciencemag.org/cgi/content/abstract/325/5944/1099

Strong Coupling Between Single-Electron Tunneling and Nanomechanical Motion
G. A. Steele et al.
Individual electrons tunneling onto and out of a carbon nanotube can be used to tune its oscillatory motion.
http://www.sciencemag.org/cgi/content/abstract/325/5944/1103

Coupling Mechanics to Charge Transport in Carbon Nanotube Mechanical Resonators
B. Lassagne et al.
Individual electrons tunneling onto and out of a carbon nanotube can be used to tune its oscillatory motion.
http://www.sciencemag.org/cgi/content/abstract/325/5944/1107

!The Chemical Structure of a Molecule Resolved by Atomic Force Microscopy
L. Gross et al.
Derivitization of atomic force microscope tips with carbon monoxide molecules allows atoms to be resolved within adsorbed molecules.
http://www.sciencemag.org/cgi/content/abstract/325/5944/1110

DNA helping Moore's law

DNA SCAFFOLDING TO KEEP MOORE'S LAW CHUGGING ALONG

Moore's Law is a double-edged sword: a blessing to consumers who benefit from ever-smaller,
more memory-rich gadgets, and a growing challenge to researchers who must figure out how to
keep up the pace of those performance improvements. A group of researchers from IBM and
Caltech say they have risen to the challenge. They've used the structure of DNA as a scaffold
for assembling components with features as small as 6 nanometers across using today's
lithography techniques.
Read on at:
http://www.mmsend9.com/ls.cfm?tid=3917552341&trk=yes&r=132210134&sid=7260632&m=803820&u=IEEENY&s=http://www.spectrum.ieee.org/blog/semiconductors/devices/tech-talk/dna-scaffolding-technique-promises-sub22-nm-lithography

arXiv 08/26/09

Title: Signatures of Klein tunneling in disordered graphene p-n-p junctions
Authors: E. Rossi, J.H. Bardarson, P.W. Brouwer and S. Das Sarma
\\ ( http://arxiv.org/abs/0908.3674 , 921kb)

arXiv:0908.3733
Date: Wed, 26 Aug 2009 06:36:36 GMT (561kb)

Title: Induced interactions and the superfluid transition temperature in a
three-component Fermi gas
Authors: J.-P. Martikainen, J. Kinnunen, P. Torma, C. J. Pethick
\\ ( http://arxiv.org/abs/0908.3733 , 561kb)

!!: Observation of quantum-Hall effect in gated epitaxial graphene grown on SiC (0001)
Authors: T. Shen, J.J. Gu, M. Xu, Y.Q. Wu, M. Bolen, M.A. Capano, L.W. Engel,
and P.D. Ye
Epitaxial graphene films have been formed on the Si-face of semi-insulating
4H-SiC substrates by a high temperature sublimation process. High-k gate stack
on epitaxial graphene is realized by inserting a fully oxidized nanometer thin
aluminum film as a seeding layer followed by an atomic-layer deposition
process. The electrical properties of epitaxial graphene films are sustained
after gate stack formation without significant degradation. At low
temperatures, the missing quantum-Hall effect in Hall resistance is observed
along with the pronounced Shubnikov-de Hass oscillations in magneto-resistance
in gated epitaxial graphene on SiC (0001).
\\ ( http://arxiv.org/abs/0908.3822 , 189kb)

Title: Defects of graphene on Ir(111): rotational domains and ridges
Authors: Elena Loginova, Shu Nie, Konrad Thurmer, Norman C. Bartelt, and Kevin
F. McCarty
\\ ( http://arxiv.org/abs/0904.1251 , 2101kb)

Title: Radiofrequency Dressing of Multiple Feshbach Resonances
Authors: A.M. Kaufman (1), R.P. Anderson (1 and 2), Thomas M. Hanna (3), E.
Tiesinga (4), P.S. Julienne (4), and D.S. Hall (1) ((1) Amherst College, (2)
Swinburne University of Technology, (3) NIST, (4) JQI, NIST and University of
Maryland)
\\ ( http://arxiv.org/abs/0906.5587 , 563kb)

Title: Many-body treatment of the collisional frequency shift in fermionic
atoms
Authors: A. M. Rey, A. V. Gorshkov, C. Rubbo
\\ ( http://arxiv.org/abs/0907.2245 , 366kb)

Title: Anomalous magnetoresistance on the topological surface
Authors: Takehito Yokoyama, Yukio Tanaka, and Naoto Nagaosa
\\ ( http://arxiv.org/abs/0907.2810 , 1039kb)
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JACS 08/25/09

Nanoscale Zirconia as a Nonmetallic Catalyst for Graphitization of Carbon and Growth of Single- and Multiwall Carbon Nanotubes

Stephen A. Steiner, Theodore F. Baumann, Bernhard C. Bayer, Raoul Blume, Marcus A. Worsley, Warren J. MoberlyChan, Elisabeth L. Shaw, Robert Schl

gl, A. John Hart, Stephan Hofmann, and Brian L. Wardle

pp 12144–12154

Publication Date (Web): 10 Aug 2009 (Article)

DOI: 10.1021/ja902913r

Full Text HTML | PDF w/ Links | Hi-Res PDF | Abstract

Sunday, August 23, 2009

PRL 08/21/09

Experimental Demonstration of Single-Site Addressability in a Two-Dimensional Optical Lattice
Peter Würtz, Tim Langen, Tatjana Gericke, Andreas Koglbauer, and Herwig Ott
080404 Abstract Full Text: [ PDF (1101 kB) ]

Optical Kagome Lattice for Ultracold Atoms with Nearest Neighbor Interactions
J. Ruostekoski
080406 Abstract Full Text: [ PDF (151 kB) ]

Mass of a Spin Vortex in a Bose-Einstein Condensate
Ari M. Turner
080603 Abstract Full Text: [ PDF (162 kB) ]

Conical Intersections in Laboratory Coordinates with Ultracold Molecules
Alisdair O. G. Wallis, S. A. Gardiner, and Jeremy M. Hutson
083201 Abstract Full Text: [ PDF (785 kB) ]

!Simulating Dense QCD Matter with Ultracold Atomic Boson-Fermion Mixtures
Kenji Maeda, Gordon Baym, and Tetsuo Hatsuda
085301 Abstract Full Text: [ PDF (156 kB) ]

!Carbon Nanoelectronics: Unzipping Tubes into Graphene Ribbons
H. Santos, L. Chico, and L. Brey
086801 Abstract Full Text: [ PDF (812 kB) ] --- James Tour can have these samples

Structural and Electronic Properties of Oxidized Graphene
Jia-An Yan, Lede Xian, and M. Y. Chou
086802 Abstract Full Text: [ PDF (1751 kB) ]

All-Electrical Measurement of the Density of States in (Ga,Mn)As
D. Neumaier, M. Turek, U. Wurstbauer, A. Vogl, M. Utz, W. Wegscheider, and D. Weiss
087203 Abstract Full Text: [ PDF (329 kB) ]

Trapping Indirect Excitons in a GaAs Quantum-Well Structure with a Diamond-Shaped Electrostatic Trap
A. A. High, A. K. Thomas, G. Grosso, M. Remeika, A. T. Hammack, A. D. Meyertholen, M. M. Fogler, L. V. Butov, M. Hanson, and A. C. Gossard
087403 Abstract Full Text: [ PDF (2183 kB) ]

APL 08/22/09

!!Microwave propagation in graphene
G. Deligeorgis, M. Dragoman, D. Neculoiu, D. Dragoman, G. Konstantinidis, A. Cismaru, and R. Plana
Appl. Phys. Lett. 95, 073107 (2009) (3 pages)
Abstract Full Text: [ HTML Sectioned HTML PDF (502 kB) ] Order

Nano Lett 08/22/09

!!Position Sensitive Photothermoelectric Effect in Suspended Single-Walled Carbon Nanotube Films

Benoit C. St-Antoine, David M

nard, and Richard Martel

Publication Date (Web): 19 Aug 2009 (Letter)

DOI: 10.1021/nl901696j

Full Text HTML | PDF w/ Links | Hi-Res PDF | Abstract

Longitudinal Cutting of Pure and Doped Carbon Nanotubes to Form Graphitic Nanoribbons Using Metal Clusters as Nanoscalpels

Ana Laura El

as, Andr

s R. Botello-M

ndez, David Meneses-Rodr

lez, Lijie Ci, Emilio Mu

oz-Sandoval, Pulickel M. Ajayan, Humberto Terrones, and Mauricio Terrones

Publication Date (Web): 19 Aug 2009 (Letter)

DOI: 10.1021/nl901631z

Full Text HTML | PDF w/ Links | Hi-Res PDF | Abstract

JACS 8/22/09

Transforming Carbon Nanotube Devices into Nanoribbon Devices

Zengxing Zhang, Zhengzong Sun, Jun Yao, Dmitry V. Kosynkin, and James M. Tour

Publication Date (Web): 21 Aug 2009 (Article)

DOI: 10.1021/ja9045923

Full Text HTML | PDF w/ Links | Hi-Res PDF | Abstract

Synthesis at the Interface of Chemistry and Biology

Xu Wu and Peter G. Schultz

Publication Date (Web): 18 Aug 2009 (Perspective)

DOI: 10.1021/ja9026067

Full Text HTML | PDF w/ Links | Hi-Res PDF | Abstract

Saturday, August 22, 2009

Science 08/21/09

General Interest:

Toward Detecting Dark Matter Signals Kuhlen et al. (p. 970,published online 16 July)

Printed Assemblies of Inorganic Light-Emitting Diodes for Deformable and Semitransparent Displays DOI: 10.1126/science.1175690

Tuesday, August 4, 2009

Nature Physics 08/09

Few-body physics: Giant trimers true to scale pp533 - 534
Vitaly Efimov
Full Text | PDF

Supersolid helium: Stiffer but flowing pp534 - 535
Sébastien Balibar
Full Text | PDF

Atom chips: Read the labels pp538 - 539
Chris Westbrook
Full Text | PDF

Quantum error correction beyond qubits pp541 - 546
Takao Aoki, Go Takahashi, Tadashi Kajiya, Jun-ichi Yoshikawa, Samuel L. Braunstein, Peter van Loock and Akira Furusawa
First paragraph | Full Text | PDF
[quantum continuous variables]

**Engineering the quantum transport of atomic wavefunctions over macroscopic distances pp547 - 550
A. Alberti, V. V. Ivanov, G. M. Tino and G. Ferrari
doi:10.1038/nphys1310
How far can you stretch an atomic wavefunction? An experiment demonstrates that the wavefunction of an ensemble of ultracold atoms trapped in an optical lattice can be reversibly expanded and shrunk over a distance of 1.5 mm.
First paragraph | Full Text | PDF

Measurement of single-molecule frictional dissipation in a prototypical nanoscale system pp561 - 564
H. Hedgeland, P. Fouquet, A. P. Jardine, G. Alexandrowicz, W. Allison and J. Ellis
First paragraph | Full Text | PDF

[FTIR] Appearance of a fractional Stokes-Einstein relation in water and a structural interpretation of its onset pp565 - 569 Limei Xu, Francesco Mallamace, Zhenyu Yan, Francis W. Starr, Sergey V. Buldyrev and H. Eugene Stanley First paragraph \| Full Text \| PDF

** Field-sensitive addressing and control of field-insensitive neutral-atom qubits pp575 - 580
N. Lundblad, J. M. Obrecht, I. B. Spielman and J. V. Porto
doi:10.1038/nphys1330
A quantum computer requires quantum systems that are well-isolated from external perturbations, but which can still be easily manipulated with external fields. A scheme that uses spatially inhomogeneous fields to selectively address neutral-atom qubits while they are in field-insensitive superposition states satisfies these competing needs.
Abstract | Full Text | PDF

Observation of electric-field-induced Cs Rydberg atom macrodimers pp581 - 585
K. R. Overstreet, A. Schwettmann, J. Tallant, D. Booth and J. P. Shaffer
Abstract | Full Text | PDF

Observation of an Efimov spectrum in an atomic system pp586 - 591
M. Zaccanti, B. Deissler, C. D'Errico, M. Fattori, M. Jona-Lasinio, S. Müller, G. Roati, M. Inguscio and G. Modugno
Abstract | Full Text | PDF
See also: News and Views by Efimov

Role of shear modulus and statistics in the supersolidity of helium pp598 - 601
Joshua T. West, Oleksandr Syshchenko, John Beamish and Moses H. W. Chan
Abstract | Full Text | PDF
See also: News and Views by Balibar

!!Lévy flights of photons in hot atomic vapours pp602 - 605
N. Mercadier, W. Guerin, M. Chevrollier and R. Kaiser
doi:10.1038/nphys1286
Lévy flights, a form of random walk, are quite common in nature. However only macroscopic signatures, obtained by averaging over many steps, have been measured so far. Now, the individual steps are observed directly as light scatters in a hot atomic vapour.
Abstract | Full Text | PDF