Frontiers in Phononics: Parity-Time Symmetric Phononic Metamaterials

Pubblicazioni

Flat Bands in Magic-Angle Vibrating Plates

Autori: María Rosendo López, Fernando Peñaranda, Johan Christensen, Pablo San-Jose
Pubblicato in: Physical Review Letters, Numero 125/21, 2020, ISSN 0031-9007
Editore: American Physical Society
DOI: 10.1103/physrevlett.125.214301

Ultrasonic nodal chains in topological granular metamaterials

Autori: Aurélien Merkel, Johan Christensen
Pubblicato in: Communications Physics, Numero 2/1, 2019, ISSN 2399-3650
Editore: Nature Partner Journals
DOI: 10.1038/s42005-019-0256-z

Subwavelength Acoustic Valley-Hall Topological Insulators Using Soda Cans Honeycomb Lattices.

Autori: Zhiwang Zhang; Y. Gu; Houyou Long; Ying Cheng; Xiaojun Liu; Johan Christensen
Pubblicato in: Research, Vol 2019 (2019), Numero 1, 2019, ISSN 2639-5274
Editore: American Association for the Advancement of Science
DOI: 10.34133/2019/5385763

Flexible mechanical metamaterials

Autori: Katia Bertoldi; Vincenzo Vitelli; Vincenzo Vitelli; Johan Christensen; Martin van Hecke
Pubblicato in: VOLUME=2;STARTPAGE=17066;TITLE=Nature Reviews Materials, Numero 1, 2017, ISSN 2058-8437
Editore: Nature Portfolio
DOI: 10.1038/natrevmats.2017.66

Majorana-like Zero Modes in Kekulé Distorted Sonic Lattices

Autori: Penglin Gao; Daniel Torrent; Francisco Cervera; Pablo San-Jose; José Sánchez-Dehesa; Johan Christensen
Pubblicato in: reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia, Numero 1, 2019, ISSN 0031-9007
Editore: American Physical Society
DOI: 10.1103/physrevlett.123.196601

Slow Surface Acoustic Waves via Lattice Optimization of a Phononic Crystal on a Chip

Autori: Si-Yuan Yu, Ji-Qian Wang, Xiao-Chen Sun, Fu-Kang Liu, Cheng He, Huan-Huan Xu, Ming-Hui Lu, Johan Christensen, Xiao-Ping Liu, Yan-Feng Chen
Pubblicato in: Physical Review Applied, Numero 14/6, 2020, ISSN 2331-7019
Editore: American Physical Society
DOI: 10.1103/physrevapplied.14.064008

Knitting topological bands in artificial sonic semimetals

Autori: Li-Yang Zheng; Xiujuan Zhang; Ming-Hui Lu; Yan-Feng Chen; Johan Christensen
Pubblicato in: Materials Today Physics, Numero 1, 2020, ISSN 2542-5293
Editore: Elsevier
DOI: 10.1016/j.mtphys.2020.100299

Topological radiation engineering in hyperbolic sonic semimetals

Autori: Li-Yang Zheng; Johan Christensen
Pubblicato in: Phys. Rev. B, Numero 1, 2021, ISSN 2469-9950
Editore: American Physical Society
DOI: 10.1103/physrevb.103.064307

Orbital Angular Momentum Multiplexing in Space–Time Thermoacoustic Metasurfaces

Autori: Yurou Jia; Yimin Liu; Bolun Hu; Wei Xiong; Yechao Bai; Ying Cheng; Dajian Wu; Xiaojun Liu; Johan Christensen
Pubblicato in: Crossref, Numero 1, 2022, ISSN 0935-9648
Editore: United Nations Industrial Developement Organization
DOI: 10.1002/adma.202202026

Mechanical Analogue of a Majorana Bound State

Autori: Chun‐Wei Chen, Natalia Lera, Rajesh Chaunsali, Daniel Torrent, Jose Vicente Alvarez, Jinkyu Yang, Pablo San‐Jose, Johan Christensen
Pubblicato in: Advanced Materials, Numero 31/51, 2019, Pagina/e 1904386, ISSN 0935-9648
Editore: United Nations Industrial Developement Organization
DOI: 10.1002/adma.201904386

Topological Sound Pumping of Zero‐Dimensional Bound States

Autori: Penglin Gao, Johan Christensen
Pubblicato in: Advanced Quantum Technologies, Numero 3/9, 2020, Pagina/e 2000065, ISSN 2511-9044
Editore: Advanced Quantum Technologies (Wiley-VCH GmbH, Weinheim)
DOI: 10.1002/qute.202000065

Subwavelength multiple topological interface states in one-dimensional labyrinthine acoustic metamaterials

Autori: Zhiwang Zhang, Ying Cheng, Xiaojun Liu, Johan Christensen
Pubblicato in: Physical Review B, Numero 99/22, 2019, ISSN 2469-9950
Editore: American Physical Society
DOI: 10.1103/physrevb.99.224104

Corner states in second-order mechanical topological insulator

Autori: Chen, Chun-Wei; Chaunsali, Rajesh; Christensen, Johan; Theocharis, Georgios; Yang, Jinkyu
Pubblicato in: communications materials, Numero 18, 2021, ISSN 2662-4443
Editore: Nature Publishing
DOI: 10.48550/arxiv.2009.03525

Multiple scattering theory of non-Hermitian sonic second-order topological insulators

Autori: María Rosendo López, Zhiwang Zhang, Daniel Torrent, Johan Christensen
Pubblicato in: Communications Physics, Numero 2/1, 2019, ISSN 2399-3650
Editore: Nature Research
DOI: 10.1038/s42005-019-0233-6

Polarization bandgaps and fluid-like elasticity in fully solid elastic metamaterials.

Autori: Guancong Ma; Caixing Fu; Guanghao Wang; Philipp del Hougne; Johan Christensen; Yun Lai; Ping Sheng
Pubblicato in: instname:, Numero 1, 2016, ISSN 2041-1723
Editore: Nature Publishing Group
DOI: 10.1038/ncomms13536

Dynamic Nonreciprocity in Loss-Compensated Piezophononic Media

Autori: Aurélien Merkel, Morten Willatzen, Johan Christensen
Pubblicato in: Physical Review Applied, Numero 9/3, 2018, ISSN 2331-7019
Editore: American Physical Society
DOI: 10.1103/physrevapplied.9.034033

Optical force rectifiers based on PT-symmetric metasurfaces

Autori: Rasoul Alaee, Burak Gurlek, Johan Christensen, Muamer Kadic
Pubblicato in: Physical Review B, Numero 97/19, 2018, ISSN 2469-9950
Editore: American Physical Society
DOI: 10.1103/physrevb.97.195420

Optical Pulling and Pushing Forces in Bilayer P T -Symmetric Structures

Autori: Rasoul Alaee, Johan Christensen, Muamer Kadic
Pubblicato in: Physical Review Applied, Numero 9/1, 2018, ISSN 2331-7019
Editore: APS
DOI: 10.1103/PhysRevApplied.9.014007

Experimental verification of acoustic pseudospin multipoles in a symmetry-broken snowflakelike topological insulator

Autori: Zhiwang Zhang, Ye Tian, Ying Cheng, Xiaojun Liu, Johan Christensen
Pubblicato in: Physical Review B, Numero 96/24, 2017, ISSN 2469-9950
Editore: APS
DOI: 10.1103/PhysRevB.96.241306

Valley Hall phases in kagome lattices

Autori: Natalia Lera, Daniel Torrent, P. San-Jose, J. Christensen, J. V. Alvarez
Pubblicato in: Physical Review B, Numero 99/13, 2019, ISSN 2469-9950
Editore: APS
DOI: 10.1103/PhysRevB.99.134102

Directional Acoustic Antennas Based on Valley-Hall Topological Insulators

Autori: Zhiwang Zhang, Ye Tian, Yihe Wang, Shuxiang Gao, Ying Cheng, Xiaojun Liu, Johan Christensen
Pubblicato in: Advanced Materials, Numero 30/36, 2018, Pagina/e 1803229, ISSN 0935-9648
Editore: United Nations Industrial Developement Organization
DOI: 10.1002/adma.201803229

Topological sound

Autori: Xiujuan Zhang, Meng Xiao, Ying Cheng, Ming-Hui Lu, Johan Christensen
Pubblicato in: Communications Physics, Numero 1/1, 2018, ISSN 2399-3650
Editore: NPG
DOI: 10.1038/s42005-018-0094-4

Non-Hermitian Sonic Second-Order Topological Insulator

Autori: Zhiwang Zhang, María Rosendo López, Ying Cheng, Xiaojun Liu, Johan Christensen
Pubblicato in: Physical Review Letters, Numero 122/19, 2019, ISSN 0031-9007
Editore: American Physical Society
DOI: 10.1103/PhysRevLett.122.195501

Valley Physics in Non-Hermitian Artificial Acoustic Boron Nitride

Autori: Mudi Wang, Liping Ye, J. Christensen, Zhengyou Liu
Pubblicato in: Physical Review Letters, Numero 120/24, 2018, ISSN 0031-9007
Editore: American Physical Society
DOI: 10.1103/PhysRevLett.120.246601

Unidirectional zero sonic reflection in passive PT -symmetric Willis media

Autori: Aurélien Merkel, Vicent Romero-García, Jean-Philippe Groby, Jensen Li, Johan Christensen
Pubblicato in: Physical Review B, Numero 98/20, 2018, ISSN 2469-9950
Editore: APS
DOI: 10.1103/PhysRevB.98.201102

Ultrathin acoustic parity-time symmetric metasurface cloak

Autori: Li, Hao-Xiang; Rosendo-Lopez, Maria; Zhu, Yi-Fan; Fan, Xu-Dong; Torrent, Daniel; Liang, Bin; Cheng, Jian-Chum; Christensen, Johan
Pubblicato in: SPJ Research, Numero 1, 2019, ISSN 2058-8437
Editore: Under review in SPJ Research

Topological Acoustic Delay Line

Autori: Zhiwang Zhang, Ye Tian, Ying Cheng, Qi Wei, Xiaojun Liu, Johan Christensen
Pubblicato in: Physical Review Applied, Numero 9/3, 2018, ISSN 2331-7019
Editore: APS
DOI: 10.1103/PhysRevApplied.9.034032

Deep‐Subwavelength Holey Acoustic Second‐Order Topological Insulators

Autori: Zhiwang Zhang, Houyou Long, Chen Liu, Chen Shao, Ying Cheng, Xiaojun Liu, Johan Christensen
Pubblicato in: Advanced Materials, Numero 31/49, 2019, Pagina/e 1904682, ISSN 0935-9648
Editore: United Nations Industrial Developement Organization
DOI: 10.1002/adma.201904682

Sonic valley-Chern insulators

Autori: Penglin Gao, Zhiwang Zhang, Johan Christensen
Pubblicato in: Physical Review B, Numero 101/2, 2020, ISSN 2469-9950
Editore: American Physical Society
DOI: 10.1103/physrevb.101.020301

Dirac Hierarchy in Acoustic Topological Insulators.

Autori: Li-Yang Zheng; Johan Christensen
Pubblicato in: Physical Review Letters, Numero 4, 2021, ISSN 0031-9007
Editore: American Physical Society
DOI: 10.1103/physrevlett.127.156401

Non-Hermitian topological whispering gallery

Autori: B. Hu, Z. Zhang, H. Zhang, L. Zheng, W. Xiong, Z. Yue, X. Wang, J. Xu, Y. Cheng, X. Liu, and J. Christensen
Pubblicato in: Nature, 2021, ISSN 0028-0836
Editore: Nature Publishing Group
DOI: 10.1038/s41586-021-03833-4

Pseudospin induced topological corner state at intersecting sonic lattices

Autori: Zhiwang Zhang, Bolun Hu, Feng Liu, Ying Cheng, Xiaojun Liu, Johan Christensen
Pubblicato in: Physical Review B, Numero 101/22, 2020, ISSN 2469-9950
Editore: American Physical Society
DOI: 10.1103/physrevb.101.220102

$\PT$ symmetric sonic crystals: From asymmetric echoes to supersonic speeds

Autori: Maria Rosendo-Lopez; Aurélien Merkel; Johan Christensen
Pubblicato in: instname:Universidad Carlos III de Madrid (UC3M), Numero 4, 2018, ISSN 0295-5075
Editore: EDP Sciences
DOI: 10.1209/0295-5075/124/34001

Anomalous Topological Edge States in Non-Hermitian Piezophononic Media

Autori: Penglin Gao, Morten Willatzen, Johan Christensen
Pubblicato in: Physical Review Letters, Numero 125/20, 2020, ISSN 0031-9007
Editore: American Physical Society
DOI: 10.1103/physrevlett.125.206402

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