Advance online publication
The latest research papers, published online ahead of print. These online versions are definitive and may be cited using the digital object identifier (DOI).
About advance online publicationLetters
Electrically driven single-electron spin resonance in a slanting Zeeman field
M. Pioro-Ladrière, T. Obata, Y. Tokura, Y.-S. Shin, T. Kubo, K. Yoshida, T. Taniyama & S. Tarucha
Published online: 17 August 2008; | doi:10.1038/nphys1053
The integration of a micrometre-sized magnet with a semiconductor device has enabled the individual manipulation of two single electron spins. This approach may provide a scalable route for quantum computing with electron spins confined in quantum dots.
First Paragraph - | Full Text - Electrically driven single-electron spin resonance in a slanting Zeeman field | PDF (442 KB) - Electrically driven single-electron spin resonance in a slanting Zeeman field | Supplementary information
Coherent population trapping of an electron spin in a single negatively charged quantum dot
Xiaodong Xu, Bo Sun, Paul R. Berman, Duncan G. Steel, Allan S. Bracker, Dan Gammon & L. J. Sham
Published online: 17 August 2008; | doi:10.1038/nphys1054
Coherent population trapping is a process by which a particle is induced to exist in a superposition of two ground states. This has now been demonstrated for an electron spin on a single quantum dot, which could prove useful in a variety of photonic and information-processing applications.
First Paragraph - | Full Text - Coherent population trapping of an electron spin in a single negatively charged quantum dot | PDF (654 KB) - Coherent population trapping of an electron spin in a single negatively charged quantum dot | Supplementary information
Thermodynamic signature of growing amorphous order in glass-forming liquids
G. Biroli, J.-P. Bouchaud, A. Cavagna, T. S. Grigera & P. Verrocchio
Published online: 10 August 2008; | doi:10.1038/nphys1050
That the dynamical properties of a glass-forming liquid at high temperature are different from behaviour in the supercooled state has already been established. Numerical simulations now suggest that the static length scale over which spatial correlations exist also changes on approaching the glass transition.
First Paragraph - | Full Text - Thermodynamic signature of growing amorphous order in glass-forming liquids | PDF (292 KB) - Thermodynamic signature of growing amorphous order in glass-forming liquids | Supplementary information
Ultrafast control of donor-bound electron spins with single detuned optical pulses
Kai-Mei C. Fu, Susan M. Clark, Charles Santori, Colin R. Stanley, M. C. Holland & Yoshihisa Yamamoto
Published online: 10 August 2008; | doi:10.1038/nphys1052
A technique that controls electron spins using single optical pulses far detuned from the optical transition has been demonstrated. This approach may enable fast spin manipulation in a variety of solid-state systems.
First Paragraph - | Full Text - Ultrafast control of donor-bound electron spins with single detuned optical pulses | PDF (431 KB) - Ultrafast control of donor-bound electron spins with single detuned optical pulses
Quantized vortices in an exciton–polariton condensate
K. G. Lagoudakis, M. Wouters, M. Richard, A. Baas, I. Carusotto, R. André, Le Si Dang & B. Deveaud-Plédran
Published online: 10 August 2008; | doi:10.1038/nphys1051
When a superfluid—such as liquid helium—is set in rotation, vortices appear in which circulation around a closed loop can take only discrete values. Such quantized vortices have now been observed in a solid-state system—a Bose–Einstein condensate made of exciton polaritons.
First Paragraph - | Full Text - Quantized vortices in an exciton–polariton condensate | PDF (430 KB) - Quantized vortices in an exciton–polariton condensate | Supplementary information
Observation of Bogoliubov excitations in exciton-polariton condensates
S. Utsunomiya, L. Tian, G. Roumpos, C. W. Lai, N. Kumada, T. Fujisawa, M. Kuwata-Gonokami, A. Löffler, S. Höfling, A. Forchel & Y. Yamamoto
Published online: 01 August 2008; | doi:10.1038/nphys1034
The observation of so-called Bogoliubov excitations provides the first sign of possible superfluid behaviour in an exciton-polariton condensate.
First Paragraph - | Full Text - Observation of Bogoliubov excitations in exciton-polariton condensates | PDF (2,187 KB) - Observation of Bogoliubov excitations in exciton-polariton condensates | Supplementary information
Simulating a quantum magnet with trapped ions
A. Friedenauer, H. Schmitz, J. T. Glueckert, D. Porras & T. Schaetz
Published online: 27 July 2008; | doi:10.1038/nphys1032
The observation of controlled adiabatic evolution from paramagnetic into ferromagnetic order in a system made of two trapped ions represents an initial step into the emerging field of quantum simulation.
First Paragraph - | Full Text - Simulating a quantum magnet with trapped ions | PDF (304 KB) - Simulating a quantum magnet with trapped ions
Spin-glass order induced by dynamic frustration
E. A. Goremychkin, R. Osborn, B. D. Rainford, R. T. Macaluso, D. T. Adroja & M. Koza
Published online: 27 July 2008; | doi:10.1038/nphys1028
Disorder and geometric frustration usually lead to magnetic spins that point in random directions, as in a spin glass. So how can spin-glass behaviour emerge in a well-ordered system without static frustration? The presence of 'dynamic frustration' may explain the situation.
First Paragraph - | Full Text - Spin-glass order induced by dynamic frustration | PDF (542 KB) - Spin-glass order induced by dynamic frustration
Anatomy of plasma turbulence
Takuma Yamada, Sanae-I. Itoh, Takashi Maruta, Naohiro Kasuya, Yoshihiko Nagashima, Shunjiro Shinohara, Kenichiro Terasaka, Masatoshi Yagi, Shigeru Inagaki, Yoshinobu Kawai, Akihide Fujisawa & Kimitaka Itoh
Published online: 27 July 2008; | doi:10.1038/nphys1029
Detailed analysis of multiscale structures and the identification of long-lived streamer-like wavemodes in a magnetically confined plasma provides new insight into the physics of plasma turbulence.
First Paragraph - | Full Text - Anatomy of plasma turbulence | PDF (1,696 KB) - Anatomy of plasma turbulence
Strong correlations make high-temperature superconductors robust against disorder
Arti Garg, Mohit Randeria & Nandini Trivedi
Published online: 20 July 2008; | doi:10.1038/nphys1026
Why are the superconducting pairs in high-temperature superconductors so resilient to the presence of disorder? The strong electronic correlations appear to be the answer.
First Paragraph - | Full Text - Strong correlations make high-temperature superconductors robust against disorder | PDF (318 KB) - Strong correlations make high-temperature superconductors robust against disorder
Irreversible reorganization in a supercooled liquid originates from localized soft modes
Asaph Widmer-Cooper, Heidi Perry, Peter Harrowell & David R. Reichman
Published online: 20 July 2008; | doi:10.1038/nphys1025
A simulation establishes the relationship between structural relaxation in a supercooled liquid and the low-frequency dynamics in the underlying inherent structures.
First Paragraph - | Full Text - Irreversible reorganization in a supercooled liquid originates from localized soft modes | PDF (2,256 KB) - Irreversible reorganization in a supercooled liquid originates from localized soft modes | Supplementary information
Testing quantum correlations versus single-particle properties within Leggett's model and beyond
Cyril Branciard, Nicolas Brunner, Nicolas Gisin, Christian Kurtsiefer, Antia Lamas-Linares, Alexander Ling & Valerio Scarani
Published online: 06 July 2008; | doi:10.1038/nphys1020
Quantum mechanics enables distant events to be more strongly correlated than is possible classically. The proposal for a new family of experimental tests, and the implementation of one of them, provides further insight into the nature of such non-local correlations.
First Paragraph - | Full Text - Testing quantum correlations versus single-particle properties within Leggett's model and beyond | PDF (279 KB) - Testing quantum correlations versus single-particle properties within Leggett's model and beyond | Supplementary information
Charge-density-wave origin of cuprate checkerboard visualized by scanning tunnelling microscopy
W. D. Wise, M. C. Boyer, Kamalesh Chatterjee, Takeshi Kondo, T. Takeuchi, H. Ikuta, Yayu Wang & E. W. Hudson
Published online: 06 July 2008; | doi:10.1038/nphys1021
The checkerboard pattern observed in high-temperature superconductors by scanning tunnelling microscopy is widespread, but what does it mean? And what does it say about the mysterious 'pseudogap'?
First Paragraph - | Full Text - Charge-density-wave origin of cuprate checkerboard visualized by scanning tunnelling microscopy | PDF (693 KB) - Charge-density-wave origin of cuprate checkerboard visualized by scanning tunnelling microscopy
Two-photon probe of the Jaynes–Cummings model and controlled symmetry breaking in circuit QED
Frank Deppe, Matteo Mariantoni, E. P. Menzel, A. Marx, S. Saito, K. Kakuyanagi, H. Tanaka, T. Meno, K. Semba, H. Takayanagi, E. Solano & R. Gross
Published online: 29 June 2008; | doi:10.1038/nphys1016
Micrometre-scale superconducting circuits can act as quantum two-level systems, but unlike in their natural counterparts—such as atoms—the parameters of these 'artificial qubits' can be controlled externally. This tunability has now been used to break the symmetry of the system hamiltonian in a controlled manner.
First Paragraph - | Full Text - Two-photon probe of the Jaynes–Cummings model and controlled symmetry breaking in circuit QED | PDF (453 KB) - Two-photon probe of the Jaynes–Cummings model and controlled symmetry breaking in circuit QED
Articles
Bias-driven high-power microwave emission from MgO-based tunnel magnetoresistance devices
Alina M. Deac, Akio Fukushima, Hitoshi Kubota, Hiroki Maehara, Yoshishige Suzuki, Shinji Yuasa, Yoshinori Nagamine, Koji Tsunekawa, David D. Djayaprawira & Naoki Watanabe
Published online: 10 August 2008; | doi:10.1038/nphys1036
Improvements in the microwave output efficiency of MgO-based magnetic tunnel junctions brings them a step closer to practical applications and enables greater insight into the physics of spin transfer in such devices.
Abstract - | Full Text - Bias-driven high-power microwave emission from MgO-based tunnel magnetoresistance devices | PDF (866 KB) - Bias-driven high-power microwave emission from MgO-based tunnel magnetoresistance devices | Supplementary information
Dynamic light diffusion, three-dimensional Anderson localization and lasing in inverted opals
C. Conti & A. Fratalocchi
Published online: 01 August 2008; | doi:10.1038/nphys1035
State-of-the-art simulations of disorder-induced trapping of light in inverted opals provides a basis for a definitive identification, and potential use, of the three-dimensional Anderson localization of light.
Abstract - | Full Text - Dynamic light diffusion, three-dimensional Anderson localization and lasing in inverted opals | PDF (1,531 KB) - Dynamic light diffusion, three-dimensional Anderson localization and lasing in inverted opals
Little evidence for dynamic divergences in ultraviscous molecular liquids
Tina Hecksher, Albena I. Nielsen, Niels Boye Olsen & Jeppe C. Dyre
Published online: 27 July 2008; | doi:10.1038/nphys1033
Analysis of the best available data on the behaviour of a large number of glass-forming organic liquids suggests that the widespread belief that a glass ceases to flow below its transition temperature could be wrong.
Abstract - | Full Text - Little evidence for dynamic divergences in ultraviscous molecular liquids | PDF (367 KB) - Little evidence for dynamic divergences in ultraviscous molecular liquids | Supplementary information
Continuous-variable quantum cryptography using two-way quantum communication
Stefano Pirandola, Stefano Mancini, Seth Lloyd & Samuel L. Braunstein
Published online: 11 July 2008; | doi:10.1038/nphys1018
A class of quantum-cryptographic protocols is proposed that involves back-and-forth communication between two parties. The approach is shown to provide enhanced security and should tolerate higher levels of noise and loss than conventional 'one-way' protocols.
Abstract - | Full Text - Continuous-variable quantum cryptography using two-way quantum communication | PDF (287 KB) - Continuous-variable quantum cryptography using two-way quantum communication | Supplementary information
A pumped atom laser
Nicholas P. Robins, Cristina Figl, Matthew Jeppesen, Graham R. Dennis & John D. Close
Published online: 11 July 2008; | doi:10.1038/nphys1027
The experimental demonstration of a continuous and irreversible transfer of cold atoms from a 'source mode' to a 'laser mode' represents a step closer to a fully continuous atom laser.
Abstract - | Full Text - A pumped atom laser | PDF (502 KB) - A pumped atom laser
Until print versions of AOP papers are published, they should be cited in the style "Author(s) Nature Physics advance online publication, day month year (doi:10.1038/nphysXXXXX)". Once the print version (identical to the AOP) is published, it should be cited as follows: "Author(s) Nature Physics volume, page (year); advance online publication, (doi:10.1038/nphysXXXXX)".
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