Volume 121, Issue 19

9 November 2018

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On the Cover

Energy surface for a spin mapped onto a sphere, showing local minima (blue) separated by energy ridges. Black x's are first order saddle points. Red curves are saddle point search paths.

From the article:

Duplication, Collapse, and Escape of Magnetic Skyrmions Revealed Using a Systematic Saddle Point Search Method
Gideon P. Müller, Pavel F. Bessarab, Sergei M. Vlasov, Fabian Lux, Nikolai S. Kiselev, Stefan Blügel, Valery M. Uzdin, and Hannes Jónsson
Phys. Rev. Lett. 121, 197202 (2018)

HIGHLIGHTED ARTICLES

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Secure Quantum Key Distribution over 421 km of Optical Fiber

Alberto Boaron, Gianluca Boso, Davide Rusca, Cédric Vulliez, Claire Autebert, Misael Caloz, Matthieu Perrenoud, Gaëtan Gras, Félix Bussières, Ming-Jun Li, Daniel Nolan, Anthony Martin, and Hugo Zbinden

Phys. Rev. Lett. 121, 190502 (2018) - Published 5 November, 2018

An optical-fiber-based quantum cryptography scheme works over a record distance of 421 km and at much faster rates than previous long-distance demonstrations.

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Observation of Rydberg Blockade Induced by a Single Ion

F. Engel, T. Dieterle, T. Schmid, C. Tomschitz, C. Veit, N. Zuber, R. Löw, T. Pfau, and F. Meinert

Phys. Rev. Lett. 121, 193401 (2018) - Published 8 November, 2018

Forming an ion in an ultracold atomic cloud delays the subsequent creation of a Rydberg atom until the ion wanders away.

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Transverse Kerker Scattering for Angstrom Localization of Nanoparticles

Ankan Bag, Martin Neugebauer, Paweł Woźniak, Gerd Leuchs, and Peter Banzer

Phys. Rev. Lett. 121, 193902 (2018) - Published 9 November, 2018

Laser tricks allow nanoparticle position measurements with just 0.6-angstrom uncertainty, which will be useful in future nanotech devices.

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Crack Front Interaction with Self-Emitted Acoustic Waves

D. Massy, F. Mazen, D. Landru, N. Ben Mohamed, S. Tardif, A. Reinhardt, F. Madeira, O. Kononchuk, and F. Rieutord

Phys. Rev. Lett. 121, 195501 (2018) - Published 5 November, 2018

The acoustic waves emitted by a propagating crack can affect the crack’s motion and the marks it leaves behind.

EDITORS' SUGGESTION

Tuning the Coupling of an Individual Magnetic Impurity to a Superconductor: Quantum Phase Transition and Transport

Laëtitia Farinacci, Gelavizh Ahmadi, Gaël Reecht, Michael Ruby, Nils Bogdanoff, Olof Peters, Benjamin W. Heinrich, Felix von Oppen, and Katharina J. Franke

Phys. Rev. Lett. 121, 196803 (2018) - Published 9 November, 2018

A magnetic-impurity junction whose exchange coupling can be mechanically tuned with an STM tip manipulating the flexibility of Fe-porphin.

LETTERS

General Physics: Statistical and Quantum Mechanics, Quantum Information, etc.

Postselection-Loophole-Free Bell Violation with Genuine Time-Bin Entanglement

Francesco Vedovato, Costantino Agnesi, Marco Tomasin, Marco Avesani, Jan-Åke Larsson, Giuseppe Vallone, and Paolo Villoresi

Phys. Rev. Lett. 121, 190401 (2018) - Published 9 November, 2018

Quantum Error Correction Decoheres Noise

Stefanie J. Beale, Joel J. Wallman, Mauricio Gutiérrez, Kenneth R. Brown, and Raymond Laflamme

Phys. Rev. Lett. 121, 190501 (2018) - Published 5 November, 2018

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Secure Quantum Key Distribution over 421 km of Optical Fiber

Phys. Rev. Lett. 121, 190502 (2018) - Published 5 November, 2018

An optical-fiber-based quantum cryptography scheme works over a record distance of 421 km and at much faster rates than previous long-distance demonstrations.

Disentanglement Cost of Quantum States

Mario Berta and Christian Majenz

Phys. Rev. Lett. 121, 190503 (2018) - Published 9 November, 2018

Quantifying Resources in General Resource Theory with Catalysts

Anurag Anshu, Min-Hsiu Hsieh, and Rahul Jain

Phys. Rev. Lett. 121, 190504 (2018) - Published 9 November, 2018

Quantum Annealing and Thermalization: Insights from Integrability

Fuxiang Li, Vladimir Y. Chernyak, and Nikolai A. Sinitsyn

Phys. Rev. Lett. 121, 190601 (2018) - Published 6 November, 2018

Gravitation and Astrophysics

Amorphous Silicon with Extremely Low Absorption: Beating Thermal Noise in Gravitational Astronomy

I. A. Birney, J. Steinlechner, Z. Tornasi, S. MacFoy, D. Vine, A. S. Bell, D. Gibson, J. Hough, S. Rowan, P. Sortais, S. Sproules, S. Tait, I. W. Martin, and S. Reid

Phys. Rev. Lett. 121, 191101 (2018) - Published 6 November, 2018

Tracking Black Hole Kicks from Gravitational-Wave Observations

Juan Calderón Bustillo, James A. Clark, Pablo Laguna, and Deirdre Shoemaker

Phys. Rev. Lett. 121, 191102 (2018) - Published 9 November, 2018

Elementary Particles and Fields

Casimir Effect in Yang-Mills Theory in $D = 2 + 1$

M. N. Chernodub, V. A. Goy, A. V. Molochkov, and Ha Huu Nguyen

Phys. Rev. Lett. 121, 191601 (2018) - Published 6 November, 2018

Fermions at Finite Density in $2 + 1$ Dimensions with Sign-Optimized Manifolds

Andrei Alexandru, Paulo F. Bedaque, Henry Lamm, Scott Lawrence, and Neill C. Warrington

Phys. Rev. Lett. 121, 191602 (2018) - Published 9 November, 2018

Transport Peak in the Thermal Spectral Function of $N = 4$ Supersymmetric Yang-Mills Plasma at Intermediate Coupling

Jorge Casalderrey-Solana, Sašo Grozdanov, and Andrei O. Starinets

Phys. Rev. Lett. 121, 191603 (2018) - Published 9 November, 2018

Search for Resonant and Nonresonant Higgs Boson Pair Production in the $b \bar{b} τ^{+} τ^{-}$ Decay Channel in $p p$ Collisions at $\sqrt{s} = 13 TeV$ with the ATLAS Detector

M. Aaboud et al. (ATLAS Collaboration)

Phys. Rev. Lett. 121, 191801 (2018) - Published 7 November, 2018

Nonperturbative Analysis of the Electroweak Phase Transition in the Two Higgs Doublet Model

Jens O. Andersen, Tyler Gorda, Andreas Helset, Lauri Niemi, Tuomas V. I. Tenkanen, Anders Tranberg, Aleksi Vuorinen, and David J. Weir

Phys. Rev. Lett. 121, 191802 (2018) - Published 7 November, 2018

Nuclear Physics

Evidence for Coexisting Shapes through Lifetime Measurements in ${}^{98}{Zr}$

Purnima Singh et al.

Phys. Rev. Lett. 121, 192501 (2018) - Published 9 November, 2018

Pseudospin Symmetry and Microscopic Origin of Shape Coexistence in the ${}^{78}{Ni}$ Region: A Hint from Lifetime Measurements

C. Delafosse et al.

Phys. Rev. Lett. 121, 192502 (2018) - Published 9 November, 2018

Atomic, Molecular, and Optical Physics

Climbing the Rotational Ladder to Chirality

Alec Owens, Andrey Yachmenev, Sergei N. Yurchenko, and Jochen Küpper

Phys. Rev. Lett. 121, 193201 (2018) - Published 8 November, 2018

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Observation of Rydberg Blockade Induced by a Single Ion

F. Engel, T. Dieterle, T. Schmid, C. Tomschitz, C. Veit, N. Zuber, R. Löw, T. Pfau, and F. Meinert

Phys. Rev. Lett. 121, 193401 (2018) - Published 8 November, 2018

Forming an ion in an ultracold atomic cloud delays the subsequent creation of a Rydberg atom until the ion wanders away.

Organic Polariton Lasing and the Weak to Strong Coupling Crossover

Artem Strashko, Peter Kirton, and Jonathan Keeling

Phys. Rev. Lett. 121, 193601 (2018) - Published 9 November, 2018

Nonlinear Dynamics, Fluid Dynamics, Classical Optics, etc.

Interferometric Evanescent Wave Excitation of a Nanoantenna for Ultrasensitive Displacement and Phase Metrology

Lei Wei, Anatoly V. Zayats, and Francisco J. Rodríguez-Fortuño

Phys. Rev. Lett. 121, 193901 (2018) - Published 6 November, 2018

FEATURED IN PHYSICS

EDITORS' SUGGESTION

Transverse Kerker Scattering for Angstrom Localization of Nanoparticles

Ankan Bag, Martin Neugebauer, Paweł Woźniak, Gerd Leuchs, and Peter Banzer

Phys. Rev. Lett. 121, 193902 (2018) - Published 9 November, 2018

Laser tricks allow nanoparticle position measurements with just 0.6-angstrom uncertainty, which will be useful in future nanotech devices.

Asymmetric Metasurfaces with High- $Q$ Resonances Governed by Bound States in the Continuum

Kirill Koshelev, Sergey Lepeshov, Mingkai Liu, Andrey Bogdanov, and Yuri Kivshar

Phys. Rev. Lett. 121, 193903 (2018) - Published 9 November, 2018

Observation of Nonreciprocal Wave Propagation in a Dynamic Phononic Lattice

Yifan Wang, Behrooz Yousefzadeh, Hui Chen, Hussein Nassar, Guoliang Huang, and Chiara Daraio

Phys. Rev. Lett. 121, 194301 (2018) - Published 9 November, 2018

Particle-Laden Pipe Flows at High Volume Fractions Show Transition Without Puffs

Willian Hogendoorn and Christian Poelma

Phys. Rev. Lett. 121, 194501 (2018) - Published 6 November, 2018

Plasma and Beam Physics

Emittance Preservation in an Aberration-Free Active Plasma Lens

C. A. Lindstrøm, E. Adli, G. Boyle, R. Corsini, A. E. Dyson, W. Farabolini, S. M. Hooker, M. Meisel, J. Osterhoff, J.-H. Röckemann, L. Schaper, and K. N. Sjobak

Phys. Rev. Lett. 121, 194801 (2018) - Published 7 November, 2018

Condensed Matter: Structure, etc.

Droplet Crystal Ground States of a Dipolar Bose Gas

D. Baillie and P. B. Blakie

Phys. Rev. Lett. 121, 195301 (2018) - Published 9 November, 2018

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EDITORS' SUGGESTION

Crack Front Interaction with Self-Emitted Acoustic Waves

D. Massy, F. Mazen, D. Landru, N. Ben Mohamed, S. Tardif, A. Reinhardt, F. Madeira, O. Kononchuk, and F. Rieutord

Phys. Rev. Lett. 121, 195501 (2018) - Published 5 November, 2018

The acoustic waves emitted by a propagating crack can affect the crack’s motion and the marks it leaves behind.

Melting Si: Beyond Density Functional Theory

Florian Dorner, Zoran Sukurma, Christoph Dellago, and Georg Kresse

Phys. Rev. Lett. 121, 195701 (2018) - Published 6 November, 2018

Reactivity of Hydrogen-Helium and Hydrogen-Nitrogen Mixtures at High Pressures

Robin Turnbull, Mary-Ellen Donnelly, Mengnan Wang, Miriam Peña-Alvarez, Cheng Ji, Philip Dalladay-Simpson, Ho-kwang Mao, Eugene Gregoryanz, and Ross T. Howie

Phys. Rev. Lett. 121, 195702 (2018) - Published 9 November, 2018

Condensed Matter: Electronic Properties, etc.

Three-Dimensional Chiral Lattice Fermion in Floquet Systems

Xiao-Qi Sun, Meng Xiao, Tomáš Bzdušek, Shou-Cheng Zhang, and Shanhui Fan

Phys. Rev. Lett. 121, 196401 (2018) - Published 7 November, 2018

Unique Gap Structure and Symmetry of the Charge Density Wave in Single-Layer ${VSe}_{2}$

P. Chen, Woei Wu Pai, Y.-H. Chan, V. Madhavan, M. Y. Chou, S.-K. Mo, A.-V. Fedorov, and T.-C. Chiang

Phys. Rev. Lett. 121, 196402 (2018) - Published 9 November, 2018

Majorana Kramers Pairs in Higher-Order Topological Insulators

Chen-Hsuan Hsu, Peter Stano, Jelena Klinovaja, and Daniel Loss

Phys. Rev. Lett. 121, 196801 (2018) - Published 6 November, 2018

Band Alignment and the Built-in Potential of Solids

Duk-Hyun Choe, Damien West, and Shengbai Zhang

Phys. Rev. Lett. 121, 196802 (2018) - Published 9 November, 2018

EDITORS' SUGGESTION

Tuning the Coupling of an Individual Magnetic Impurity to a Superconductor: Quantum Phase Transition and Transport

Laëtitia Farinacci, Gelavizh Ahmadi, Gaël Reecht, Michael Ruby, Nils Bogdanoff, Olof Peters, Benjamin W. Heinrich, Felix von Oppen, and Katharina J. Franke

Phys. Rev. Lett. 121, 196803 (2018) - Published 9 November, 2018

A magnetic-impurity junction whose exchange coupling can be mechanically tuned with an STM tip manipulating the flexibility of Fe-porphin.

Hund-Enhanced Electronic Compressibility in FeSe and its Correlation with $T_{c}$

Pablo Villar Arribi and Luca de’ Medici

Phys. Rev. Lett. 121, 197001 (2018) - Published 6 November, 2018

Magnetoresistance Scaling Reveals Symmetries of the Strongly Correlated Dynamics in ${BaFe}_{2} ({As}_{1 - x} P_{x})_{2}$

Ian M. Hayes, Zeyu Hao, Nikola Maksimovic, Sylvia K. Lewin, Mun K. Chan, Ross D. McDonald, B. J. Ramshaw, Joel E. Moore, and James G. Analytis

Phys. Rev. Lett. 121, 197002 (2018) - Published 9 November, 2018

ERRATA

Erratum: Optomagnonic Whispering Gallery Microresonators [Phys. Rev. Lett. 117, 123605 (2016)]

Xufeng Zhang, Na Zhu, Chang-Ling Zou, and Hong X. Tang

Phys. Rev. Lett. 121, 199901 (2018) - Published 6 November, 2018

Erratum: Cellular Uptake of Elastic Nanoparticles [Phys. Rev. Lett. 107, 098101 (2011)]

Xin Yi, Xinghua Shi, and Huajian Gao

Phys. Rev. Lett. 121, 199902 (2018) - Published 7 November, 2018