Physicists embark on a hunt for a long-sought quantum glow

Journal Reference: Barbara Šoda, Vivishek Sudhir, Achim Kempf. Acceleration-Induced Effects in Stimulated Light-Matter Interactions. Physical Review Letters, 2022; 128 (16) DOI: 10.1103/PhysRevLett.128.163603 Since the 1970s when it was first proposed, the Unruh effect has eluded detection, mainly because the probability of seeing the effect is infinitesimally small, requiring either enormous accelerations or vast amounts of … Read more

Scientists turn a hydrogen molecule into a quantum sensor

Journal Reference: Likun Wang, Yunpeng Xia, W. Ho. Atomic-scale quantum sensing based on the ultrafast coherence of an H 2 molecule in an STM cavity. Science, 2022; 376 (6591): 401 DOI: 10.1126/science.abn9220 This new technique can also be applied to analysis of two-dimensional materials which have the potential to play a role in advanced energy … Read more

Lasers trigger magnetism in atomically thin quantum materials

Journal Reference: Xi Wang, Chengxin Xiao, Heonjoon Park, Jiayi Zhu, Chong Wang, Takashi Taniguchi, Kenji Watanabe, Jiaqiang Yan, Di Xiao, Daniel R. Gamelin, Wang Yao, Xiaodong Xu. Light-induced ferromagnetism in moiré superlattices. Nature, 2022; 604 (7906): 468 DOI: 10.1038/s41586-022-04472-z The experiment, led by scientists at the University of Washington and the University of Hong Kong, … Read more

Guiding a superconducting future with graphene quantum magic

Journal Reference: Seiichiro Onari, Hiroshi Kontani. SU(4) Valley+Spin Fluctuation Interference Mechanism for Nematic Order in Magic-Angle Twisted Bilayer Graphene: The Impact of Vertex Corrections. Physical Review Letters, 2022; 128 (6) DOI: 10.1103/PhysRevLett.128.066401 For a material to behave as a superconductor, low temperatures are required. Most materials only enter the superconducting phase at extremely low temperatures, … Read more

Predicting the most stable boron nitride structure with quantum simulations

Journal Reference: Yutaka Nikaido, Tom Ichibha, Kenta Hongo, Fernando A. Reboredo, K. C. Hari Kumar, Priya Mahadevan, Ryo Maezono, Kousuke Nakano. Diffusion Monte Carlo Study on Relative Stabilities of Boron Nitride Polymorphs. The Journal of Physical Chemistry C, 2022; 126 (13): 6000 DOI: 10.1021/acs.jpcc.1c10943 However, BN polymorphs pose a particular problem. Despite conducting several experiments … Read more

Scientists find ‘knob’ to control magnetic behavior in quantum material

Journal Reference: Hari Padmanabhan, Maxwell Poore, Peter K. Kim, Nathan Z. Koocher, Vladimir A. Stoica, Danilo Puggioni, Huaiyu (Hugo) Wang, Xiaozhe Shen, Alexander H. Reid, Mingqiang Gu, Maxwell Wetherington, Seng Huat Lee, Richard D. Schaller, Zhiqiang Mao, Aaron M. Lindenberg, Xijie Wang, James M. Rondinelli, Richard D. Averitt, Venkatraman Gopalan. Interlayer magnetophononic coupling in MnBi2Te4. … Read more

Graphene-hBN breakthrough to spur new LEDs, quantum computing

Journal Reference: Ping Wang, Woncheol Lee, Joseph P. Corbett, William H. Koll, Nguyen M. Vu, David Arto Laleyan, Qiannan Wen, Yuanpeng Wu, Ayush Pandey, Jiseok Gim, Ding Wang, Diana Y. Qiu, Robert Hovden, Mackillo Kira, John T. Heron, Jay A. Gupta, Emmanouil Kioupakis, Zetian Mi. Scalable Synthesis of Monolayer Hexagonal Boron Nitride on Graphene with … Read more

Hybrid quantum bit based on topological insulators

Journal Reference: Tobias W. Schmitt, Malcolm R. Connolly, Michael Schleenvoigt, Chenlu Liu, Oscar Kennedy, José M. Chávez-Garcia, Abdur R. Jalil, Benjamin Bennemann, Stefan Trellenkamp, Florian Lentz, Elmar Neumann, Tobias Lindström, Sebastian E. de Graaf, Erwin Berenschot, Niels Tas, Gregor Mussler, Karl D. Petersson, Detlev Grützmacher, Peter Schüffelgen. Integration of Topological Insulator Josephson Junctions in Superconducting … Read more

Researchers generate high-quality quantum light with modular waveguide device

Journal Reference: Kan Takase, Akito Kawasaki, Byung Kyu Jeong, Mamoru Endo, Takahiro Kashiwazaki, Takushi Kazama, Koji Enbutsu, Kei Watanabe, Takeshi Umeki, Shigehito Miki, Hirotaka Terai, Masahiro Yabuno, Fumihiro China, Warit Asavanant, Jun-ichi Yoshikawa, Akira Furusawa. Generation of Schrödinger cat states with Wigner negativity using a continuous-wave low-loss waveguide optical parametric amplifier. Optics Express, 2022; 30 … Read more

The side effects of quantum error correction and how to cope with them

Journal Reference: Ivan Rojkov, David Layden, Paola Cappellaro, Jonathan Home, Florentin Reiter. Bias in Error-Corrected Quantum Sensing. Physical Review Letters, 2022; 128 (14) DOI: 10.1103/PhysRevLett.128.140503 One way to suppress these unwanted contributions is to apply schemes collectively known as quantum error correction (QEC). This approach is attracting considerable and increasing attention, as it might enable … Read more