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Focus

Quantum phase transitions

Editorial

Focus: Quantum phase transitions

Transitions in focus p157

doi:10.1038/nphys898


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Thesis

Physics is dead, long live physics! p159

Mark Buchanan

doi:10.1038/nphys899


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Research Highlights

Roll with it, take your time p161

doi:10.1038/nphys900


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News and Views

Superconductors: The electron shatters pp163 - 164

Nandini Trivedi

doi:10.1038/nphys901

Subject Categories: Condensed-matter physics | Materials physics


Astrophysics: Dust before the storm p164

May Chiao

doi:10.1038/nphys905

Subject Category: Astrophysics




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Perspectives

Focus: Quantum phase transitions

Fishing the Fermi sea pp167 - 169

Paul C. Canfield

doi:10.1038/nphys908


Focus: Quantum phase transitions

What lies beneath the dome? pp170 - 172

D. M. Broun

doi:10.1038/nphys909


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Reviews

Focus: Quantum phase transitions

Quantum magnetism and criticality pp173 - 185

Subir Sachdev

doi:10.1038/nphys894

Quantum magnetism describes systems of magnetic spins in which quantum mechanical effects dominate, often in surprising ways. This review article covers phase transitions between these states, including quantum criticality and entangled electron states.

Subject Categories: Condensed-matter physics | Quantum physics | Statistical physics, thermodynamics and nonlinear dynamics


Focus: Quantum phase transitions

Quantum criticality in heavy-fermion metals pp186 - 197

Philipp Gegenwart, Qimiao Si & Frank Steglich

doi:10.1038/nphys892

At a zero-temperature phase transition from one ordered state to another, fluctuations between the two states lead to quantum critical behaviour that can lead to unexpected physics. Metals with 'heavy' electrons often harbour such weird states.

Subject Categories: Condensed-matter physics | Quantum physics | Statistical physics, thermodynamics and nonlinear dynamics


Focus: Quantum phase transitions

Bose–Einstein condensation in magnetic insulators pp198 - 204

Thierry Giamarchi, Christian Rüegg & Oleg Tchernyshyov

doi:10.1038/nphys893

A collection of bosonic particles, such as liquid helium or ultracold gases, can condense into a ground state in which the atoms flow as a 'superfluid' without scattering. Magnetic materials further illustrate the generality of the effect, as described in this review.

Subject Categories: Condensed-matter physics | Quantum physics | Statistical physics, thermodynamics and nonlinear dynamics | Materials physics


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Letters

Quantum mechanical complementarity probed in a closed-loop Aharonov–Bohm interferometer pp205 - 209

Dong-In Chang, Gyong Luck Khym, Kicheon Kang, Yunchul Chung, Hu-Jong Lee, Minky Seo, Moty Heiblum, Diana Mahalu & Vladimir Umansky

doi:10.1038/nphys854

Subject Categories: Quantum physics | Electronics, photonics and device physics


Accurate theoretical fits to laser-excited photoemission spectra in the normal phase of high-temperature superconductors pp210 - 212

Philip A. Casey, J. D. Koralek, N. C. Plumb, D. S. Dessau & Philip W. Anderson

doi:10.1038/nphys833

Subject Categories: Condensed-matter physics | Materials physics

See also: News and Views by Trivedi


Anisotropic behaviours of massless Dirac fermions in graphene under periodic potentials pp213 - 217

Cheol-Hwan Park, Li Yang, Young-Woo Son, Marvin L. Cohen & Steven G. Louie

doi:10.1038/nphys890

The propagation of charge carriers in graphene under an imposed periodic potential can become strongly anisotropic, suggesting a way of making electronic circuits with appropriately patterned surface electrodes without the need for cutting nanoscale structure into graphene.

Subject Categories: Electronics, photonics and device physics | Condensed-matter physics | Nanotechnology


Stabilization of a purely dipolar quantum gas against collapse pp218 - 222

T. Koch, T. Lahaye, J. Metz, B. Fröhlich, A. Griesmaier & T. Pfau

doi:10.1038/nphys887

For the first time, a purely dipolar quantum gas has been prepared experimentally. Different regimes have been explored; in some, the gas is stable, whereas in others it collapses due to the strong dipole–dipole interaction between the constituent atoms.

Subject Category: Atomic and molecular physics


Cruising through molecular bound-state manifolds with radiofrequency pp223 - 226

F. Lang, P. v. d. Straten, B. Brandstätter, G. Thalhammer, K. Winkler, P. S. Julienne, R. Grimm & J. Hecker Denschlag

doi:10.1038/nphys838

Subject Categories: Condensed-matter physics | Materials physics


Scanning-probe spectroscopy of semiconductor donor molecules pp227 - 233

I. Kuljanishvili, C. Kayis, J. F. Harrison, C. Piermarocchi, T. A. Kaplan, S. H. Tessmer, L. N. Pfeiffer & K. W. West

doi:10.1038/nphys855

Subject Categories: Condensed-matter physics | Electronics, photonics and device physics | Nanotechnology | Techniques and instrumentation

See also: News and Views by Simmons


Towards the zero-surface-tension limit in granular fingering instability pp234 - 237

Xiang Cheng, Lei Xu, Aaron Patterson, Heinrich M. Jaeger & Sidney R. Nagel

doi:10.1038/nphys834

Subject Categories: Statistical physics, thermodynamics and nonlinear dynamics | Fluid dynamics


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Articles

X-ray-scattering information obtained from near-field speckle pp238 - 243

R. Cerbino, L. Peverini, M. A. C. Potenza, A. Robert, P. Bösecke & M. Giglio

doi:10.1038/nphys837

Subject Categories: Optical physics | Techniques and instrumentation


Coarsening of granular segregation patterns in quasi-two-dimensional tumblers pp244 - 248

Steven W. Meier, Diego A. Melani Barreiro, Julio M. Ottino & Richard M. Lueptow

doi:10.1038/nphys881

Mixing two different types of grains in a revolving tumbler produces several radial streaks as the grains segregate. Unexpectedly though, after hundreds of revolutions, only one streak remains.

Subject Categories: Fluid dynamics | Statistical physics, thermodynamics and nonlinear dynamics | Materials physics


Liquid–solid-like transition in quasi-one-dimensional driven granular media pp249 - 254

M. G. Clerc, P. Cordero, J. Dunstan, K. Huff, N. Mujica, D. Risso & G. Varas

doi:10.1038/nphys884

Our tools for understanding phase transitions at thermal equilibrium do not usually apply to granular matter. However, a vibrating quasi-one-dimensional system displays dynamic behaviour common to classic phase transitions.

Subject Categories: Fluid dynamics | Statistical physics, thermodynamics and nonlinear dynamics | Materials physics


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Futures

Fashion p256

John Frizell

doi:10.1038/nphys907


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