Article
Chemistry, Multidisciplinary
Jiapeng Xu, Lichuan Jin, Dainan Zhang, Xiaoli Tang, Zhiyong Zhong, Huaiwu Zhang
Summary: This study develops a new type of magnonic transistor with multifunction, low loss, and full-wavelength control of propagating spin waves. It utilizes graphene and ferrimagnetic single-crystalline materials to achieve amplification and cut-off of spin waves through thermal phonon mediated nonequilibrium states. The findings also demonstrate the linear adjustment of spin-wave phase by creating a thermal phonon bath.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Multidisciplinary Sciences
Chao Yang, Haiwen Liu, Yi Liu, Jiandong Wang, Dong Qiu, Sishuang Wang, Yang Wang, Qianmei He, Xiuli Li, Peng Li, Yue Tang, Jian Wang, X. C. Xie, James M. Valles, Jie Xiong, Yanrong Li
Summary: Fermi liquid theory is the basis for understanding metals, but some quantum materials exhibit strange-metallic behavior that deviates from the traditional theory. This study shows that strange-metal properties also exist in a bosonic system, suggesting the presence of a fundamental principle governing transport beyond particle statistics.
Article
Physics, Multidisciplinary
Si-Cong Ji, Thomas Schweigler, Mohammadamin Tajik, Federica Cataldini, Joao Sabino, Frederik S. Moller, Sebastian Erne, Jorg Schmiedmayer
Summary: In this study, Floquet engineering of tunnel coupling between a pair of one-dimensional bosonic quasicondensates in a tilted double-well potential was investigated. By modulating the energy difference between the two wells, tunnel coupling was reestablished and its amplitude and phase were precisely controlled. This allowed for coherence between two initially uncorrelated Bose gases and preparation of different initial states in the emerging sine-Gordon Hamiltonian. The Floquet system was fully characterized and the dependence of both equilibrium properties and relaxation on the modulation was studied.
PHYSICAL REVIEW LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Jong Hyuk Kim, Hyun Jun Shin, Mi Kyung Kim, Jae Min Hong, Ki Won Jeong, Jin Seok Kim, Kyungsun Moon, Nara Lee, Young Jai Choi
Summary: In this study, we propose EuCo2As2 as a novel single-phase helimagnetic material that exhibits a remarkable sign reversal of anisotropic magnetoresistance (AMR). By driving spin reorientation and spin structure evolution with a magnetic field, the potential of noncollinear antiferromagnets for spintronic device development is revealed.
NPG ASIA MATERIALS
(2022)
Article
Physics, Multidisciplinary
Harald Putterman, Joseph Iverson, Qian Xu, Liang Jiang, Oskar Painter, Fernando G. S. L. Brandao, Kyungjoo Noh
Summary: This article introduces a scheme for stabilizing energy-gap-protected qubits using colored dissipation, specifically focusing on Kerr-cat qubits. This technique effectively suppresses leakage-induced bit-flip errors and improves the performance of quantum bits.
PHYSICAL REVIEW LETTERS
(2022)
Article
Mathematics
Fabio Bagarello
Summary: In this paper, we investigate a fully pseudo-bosonic Swanson model and demonstrate how its Hamiltonian H can be diagonalized. We also deduce the eigensystem of H+ using the general framework and results derived in the context of pseudo-bosons. Additionally, we construct the bicoherent states for the model through different approaches, analyze some of their properties, and compare the various construction methods.
Article
Materials Science, Multidisciplinary
H. Yamaguchi, Y. Iwasaki, Y. Kono, T. Okubo, S. Miyamoto, Y. Hosokoshi, A. Matsuo, T. Sakakibara, T. Kida, M. Hagiwara
Summary: This study introduces a model compound with a spin-1/2 spatially anisotropic frustrated square lattice, showing an unconventional gradual increase in low-temperature magnetization curve and one-dimensional characteristics indicated by specific heat and electron spin resonance signals. These results demonstrate quantum critical behavior associated with one-dimensionalization caused by frustrated interactions in the spin-1/2 spatially anisotropic square lattice.
Article
Multidisciplinary Sciences
A. Devarakonda, T. Suzuki, S. Fang, J. Zhu, D. Graf, M. Kriener, L. Fu, E. Kaxiras, J. G. Checkelsky
Summary: This study investigates thermodynamic signatures of bosonic Landau level transitions in a layered superconductor, where Cooper pairs with finite momentum are formed. The observations indicate distinct vortex states and modulations in the upper critical magnetic field, in agreement with predictions for Cooper pair Landau level transitions in a finite-momentum superconductor.
Article
Optics
Qiang Gao, Yun-Jie Xia
Summary: In this study, a new angular momentum state is introduced through the bosonic operator realization of angular momentum operators on a number state. The nonclassicality of this state is then investigated based on the sub-Poissonian distribution, photon number distribution, entanglement entropy, and Wigner distribution. The results demonstrate that the nonclassicality of the new state is stronger for odd q compared to even q, and that the nonclassicality initially increases and then weakens with increasing g for any q. Additionally, the entanglement consistently increases with increasing q for all values of g, and reaches a maximum when g and h fall within certain ranges and q is sufficiently large.
Article
Physics, Multidisciplinary
Takafumi Ono, Wojciech Roga, Kentaro Wakui, Mikio Fujiwara, Shigehito Miki, Hirotaka Terai, Masahiro Takeoka
Summary: In this study, a new quantum classifier for bosonic systems is proposed and successfully demonstrated using a silicon-based photonic integrated circuit. By implementing a programmable optical circuit combined with an interferometer, a high success probability in classification is achieved in the proof of principle experiment.
PHYSICAL REVIEW LETTERS
(2023)
Article
Physics, Applied
U. K. Voma, A. Shahee, Kwang-Tak Kim, Jungwoo Lee, K. Boya, S. Bhowal, Kee Hoon Kim, B. Koteswararao
Summary: In this study, we investigated the geometrically frustrated kagome material CaFe3O(PO4)(3), which exhibits various novel states of matter. Through magnetization, pyroelectric, and magnetoelectric current measurements, we studied the electrical and magnetic properties of CaFe3O(PO4)(3). The system undergoes weak ferromagnetic-type ordering at T-C1 around 19.5 K, followed by another transition at T-C2 around 9 K. While no ferroelectric polarization is observed at zero magnetic field, it is induced below T-C2 with the application of a magnetic field. At 2.5 K, the ferroelectric polarization starts to increase above a magnetic field of 1 T, reaches a maximum value at 3.15 T, and then decreases at higher magnetic fields. These observations suggest that CaFe3O(PO4)(3) is a magnetic-field-induced ferroelectric compound with frustrated magnetic couplings.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Physics, Multidisciplinary
Takafumi Ono, Wojciech Roga, Kentaro Wakui, Mikio Fujiwara, Shigehito Miki, Hirotaka Terai, Masahiro Takeoka
Summary: In this study, we propose a new quantum classifier for bosonic systems using the data reuploading technique and demonstrate it with a silicon-based photonic integrated circuit. By implementing a programmable optical circuit combined with an interferometer, we achieve a classification success probability of 94.8% in the proof of principle experiment with uncorrelated two photons. This method has the potential for further development in optical quantum classifiers, including extensions to quantum entangled and multiphoton states.
PHYSICAL REVIEW LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Samuel Brem, Ermin Malic
Summary: In superlattices of twisted semiconductor monolayers, tunable moire potentials emerge, trapping excitons into periodic arrays. Recent experiments have demonstrated density-dependent transport properties of moire excitons, which could play a key role for technological applications. In this work, a microscopic theory of interacting excitons in external potentials is developed, showing how interactions between moire excitons can lead to a delocalization at intermediate densities.
Article
Multidisciplinary Sciences
Jeffrey M. Gertler, Brian Baker, Juliang Li, Shruti Shirol, Jens Koch, Chen Wang
Summary: In this study, a logical qubit encoded in multi-photon states of a superconducting cavity is protected with autonomous correction of certain quantum errors by tailoring the dissipation it is exposed to. The passive protocol implemented with continuous-wave control fields autonomously corrects single-photon-loss errors and increases the coherence time of the bosonic qubit by over a factor of two. This approach offers a resource-efficient alternative or supplement to active QEC in future quantum computing architectures.
Article
Multidisciplinary Sciences
Gary P. Centers, John W. Blanchard, Jan Conrad, Nataniel L. Figueroa, Antoine Garcon, Alexander V. Gramolin, Derek F. Jackson Kimball, Matthew Lawson, Bart Pelssers, Joseph A. Smiga, Alexander O. Sushkov, Arne Wickenbrock, Dmitry Budker, Andrei Derevianko
Summary: Studies have shown that constraints inferred from several previous null experiments searching for ultralight bosonic dark matter were overestimated by factors ranging from 3 to 10, due to not considering the characteristic coherence time of the dark matter field. Laboratory measurements need to take into account the stochastic nature of such a virialized ultralight field when interpreting data.
NATURE COMMUNICATIONS
(2021)
Article
Physics, Applied
Qian Xie, Song-Tao Yu, Xuan-Kai Wang, Yong-Guang Zheng, Zhen-Sheng Yuan
Summary: In this study, a pure-phase superpixel (PPSP) method using a digital micromirror device (DMD) is implemented. The DMD operates in an unconventional mode as a phase-only modulator with multiple phase levels. An iterative Fourier transform algorithm is applied to the DMD in a 2f-configuration without filters, achieving high-quality adaptation. Simulation results demonstrate that when using 1600 x 1600 DMD pixels, the PPSP method combined with the mixed-region amplitude freedom algorithm reduces the root-mean-square error by at least 33.5% compared to conventional amplitude and phase modulation methods, while providing a 7.3% improvement in efficiency.
APPLIED PHYSICS EXPRESS
(2023)
Article
Physics, Multidisciplinary
Jin-Yi Zhang, Chang-Rui Yi, Long Zhang, Rui-Heng Jiao, Kai-Ye Shi, Huan Yuan, Wei Zhang, Xiong-Jun Liu, Shuai Chen, Jian-Wei Pan
Summary: Floquet engineering allows for the creation of new topological states that cannot be achieved in static systems. In this study, we experimentally realize and characterize anomalous topological states using high-precision Floquet engineering for ultracold atoms trapped in a shaking optical Raman lattice.
PHYSICAL REVIEW LETTERS
(2023)
Article
Physics, Multidisciplinary
Hao-Tao Zhu, Yizhi Huang, Hui Liu, Pei Zeng, Mi Zou, Yunqi Dai, Shibiao Tang, Hao Li, Lixing You, Zhen Wang, Yu-Ao Chen, Xiongfeng Ma, Teng-Yun Chen, Jian-Wei Pan
Summary: In the past two decades, quantum key distribution networks based on telecom fibers have been implemented on metropolitan and intercity scales. One of the challenges is the exponential decay of the key rate with transmission distance. However, a recently proposed mode-pairing idea has allowed high-performance quantum key distribution without global phase locking, achieving improved key rates over conventional schemes in both metropolitan and intercity distances.
PHYSICAL REVIEW LETTERS
(2023)
Article
Pediatrics
Xinran Chu, Maoxiang Qian, Jin Yang, Dong Wu, Jing Gao, Lu Cao, Fang Fang, Jian Pan, Hui Zhang, Shaoyan Hu
Summary: The study aimed to evaluate the influence of GATA3 rs3824662 on pre-B-cell ALL susceptibility and long-term prognosis in Han Chinese children. The results showed that GATA3 rs3824662 was associated with susceptibility to pre-B-cell ALL and could be a risk factor for poor treatment response and treatment-related sepsis.
FRONTIERS IN PEDIATRICS
(2023)
Article
Nutrition & Dietetics
Mei Yan, Jian Pan, Jie Huang, Changwei Liu, Xiaona Xia, Ting Zhu, Yuanyuan Wan, Yongjun Fang, Weibing Tang
Summary: This study evaluated the nutritional status of children who underwent allogeneic hematopoietic stem cell transplantation (alloHSCT) in the first 100 days. The study aimed to clarify the effect of weight loss on clinical outcomes and to analyze factors influencing weight loss. Data from 80 pediatric patients were collected and analyzed to investigate the factors affecting weight loss and the impact of weight loss on clinical outcomes.
FRONTIERS IN NUTRITION
(2023)
Article
Physics, Multidisciplinary
Jian Qin, Yu-Hao Deng, Han-Sen Zhong, Li-Chao Peng, Hao Su, Yi-Han Luo, Jia-Min Xu, Dian Wu, Si-Qiu Gong, Hua-Liang Liu, Hui Wang, Ming-Cheng Chen, Li Li, Nai-Le Liu, Chao-Yang Lu, Jian-Wei Pan
Summary: Quantum metrology aims to enhance measurement sensitivity by utilizing quantum resources. We propose and realize a novel quantum metrology scheme that combines unconventional nonlinear interferometers and stimulated emission of squeezed light. Our method achieves a scalable, unconditional, and robust quantum metrological advantage, outperforming ideal 5-N00N states. The demonstrated enhancement in Fisher information per photon, without discounting for imperfections or photon loss, makes our approach applicable in practical quantum metrology at low photon flux regime.
PHYSICAL REVIEW LETTERS
(2023)
Article
Physics, Multidisciplinary
Xue-Mei Gu, Liang Huang, Alejandro Pozas-Kerstjens, Yang-Fan Jiang, Dian Wu, Bing Bai, Qi-Chao Sun, Ming-Cheng Chen, Jun Zhang, Sixia Yu, Qiang Zhang, Chao-Yang Lu, Jian-Wei Pan
Summary: Nonlocality in networks composed of independent sources exhibits different phenomena compared to standard Bell scenarios. Network nonlocality in the entanglement-swapping scenario has been extensively studied, but previous violations of bilocality inequality could not certify the nonclassicality of their sources. We experimentally observe full network nonlocal correlations in a network where the loopholes of source-independence, locality, and measurement-independence are closed. Our experiment violates known inequalities for nonfull network nonlocal correlations by over 5 standard deviations, confirming the absence of classical sources.
PHYSICAL REVIEW LETTERS
(2023)
Article
Physics, Multidisciplinary
Li-Zheng Liu, Yue-Yang Fei, Yingqiu Mao, Yi Hu, Rui Zhang, Xu-Fei Yin, Xiao Jiang, Li Li, Nai-Le Liu, Feihu Xu, Yu-Ao Chen, Jian-Wei Pan
Summary: In this study, a full-period quantum phase estimation approach is proposed and demonstrated. The approach adopts Kitaev's phase estimation algorithm to eliminate phase ambiguity and uses GHZ states to obtain phase values. Through an eight-photon experiment, the estimation of unknown phases in a full period is achieved, and the phase super-resolution and sensitivity beyond the shot-noise limit are observed. This research provides a new way for quantum sensing and represents a solid step towards its general applications.
PHYSICAL REVIEW LETTERS
(2023)
Article
Physics, Multidisciplinary
Chong Ying, Bin Cheng, Youwei Zhao, He-Liang Huang, Yu-Ning Zhang, Ming Gong, Yulin Wu, Shiyu Wang, Futian Liang, Jin Lin, Yu Xu, Hui Deng, Hao Rong, Cheng-Zhi Peng, Man -Hong Yung, Xiaobo Zhu, Jian-Wei Pan
Summary: Although NISQ quantum computing devices are still limited in terms of qubit quantity and quality, quantum computational advantage has been experimentally demonstrated. Hybrid quantum and classical computing architectures have become the main paradigm for exhibiting NISQ applications, with the use of low-depth quantum circuits. This study demonstrates a circuit-cutting method for simulating quantum circuits with multiple logical qubits using only a few physical superconducting qubits, showcasing higher fidelity and scalability.
PHYSICAL REVIEW LETTERS
(2023)
Article
Physics, Multidisciplinary
Yu-Hao Deng, Si-Qiu Gong, Yi-Chao Gu, Zhi-Jiong Zhang, Hua-Liang Liu, Hao Su, Hao-Yang Tang, Jia-Min Xu, Meng-Hao Jia, Ming-Cheng Chen, Han-Sen Zhong, Hui Wang, Jiarong Yan, Yi Hu, Jia Huang, Wei -Jun Zhang, Hao Li, Xiao Jiang, Lixing You, Zhen Wang, Li Li, Nai-Le Liu, Chao -Yang Lu, Jian-Wei Pan
Summary: Gaussian boson sampling (GBS) is a protocol for demonstrating quantum computational advantage and is mathematically associated with graph-related and quantum chemistry problems. This study investigates the enhancement of GBS over classical stochastic algorithms on noisy quantum devices in the computationally interesting regime. Experimental results show the presence of GBS enhancement with a large photon-click number and robustness under certain noise, which may stimulate the development of more efficient classical and quantum-inspired algorithms.
PHYSICAL REVIEW LETTERS
(2023)
Article
Instruments & Instrumentation
Chao Yu, Tianyi Li, Xian-Song Zhao, Hai Lu, Rong Zhang, Feihu Xu, Jun Zhang, Jian-Wei Pan
Summary: In this study, a 4H-SiC single-photon avalanche diode (SPAD) based free-running ultraviolet single-photon detector (UVSPD) with ultralow afterpulse probability is reported. A beveled mesa structure is designed and fabricated for the 4H-SiC SPAD, which shows the characteristic of ultralow dark current. A readout circuit of passive quenching and active reset with a tunable hold-off time setting is further developed to significantly suppress the afterpulsing effect. The nonuniformity of photon detection efficiency (PDE) across the SPAD active area is investigated for performance optimization. The compact UVSPD shows a PDE of 10.3%, a dark count rate of 133 kcps, and an afterpulse probability of 0.3% at 266 nm, indicating its potential for practical ultraviolet photon-counting applications.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2023)
Article
Quantum Science & Technology
Xina Wang, Xufeng Jiao, Bin Wang, Yang Liu, Xiu-Ping Xie, Ming-Yang Zheng, Qiang Zhang, Jian-Wei Pan
Summary: This study demonstrates a low-noise quantum frequency conversion (QFC) process on the LNOI nanophotonic platform, achieving an internal conversion efficiency of 73% and an on-chip noise count of 900 counts per second (cps). The preservation of quantum statistical properties is also verified, indicating the potential applications of LNOI integrated circuits in quantum information. Additionally, an upconversion single-photon detector with a detection efficiency of 8.7% and a noise of 300 cps is constructed, paving the way for on-chip integrated single-photon detection.
NPJ QUANTUM INFORMATION
(2023)
Article
Materials Science, Multidisciplinary
Aiden Daniel, Andrew Hallam, Jean-Yves Desaules, Ana Hudomal, Guo-Xian Su, Jad C. Halimeh, Zlatko Papic
Summary: Recent work has shown that quantum many-body scarring (QMBS) can be destroyed by tuning a system to a quantum critical point. This study demonstrates that in systems displaying QMBS dynamics from a continuous family of initial conditions, the dynamical signatures of QMBS can undergo a smooth evolution across the equilibrium phase transition point. Using the PXP model, the researchers mapped out the dynamical phase diagram and formulated a ramping protocol to prepare QMBS states in experiments. These results highlight the ubiquity of scarring in the PXP model and its intriguing interplay with quantum criticality.
Article
Physics, Multidisciplinary
Guo-Xian Su, Hui Sun, Ana Hudomal, Jean-Yves Desaules, Zhao-Yu Zhou, Bing Yang, Jad C. Halimeh, Zhen-Sheng Yuan, Zlatko Papie, Jian-Wei Pan
Summary: The ongoing quest for understanding nonequilibrium dynamics of complex quantum systems has led to the discovery of quantum many-body scarring. This phenomenon allows for the delay of thermalization by preparing the system in special initial states. In this study, the researchers demonstrate many-body scarring in a Bose-Hubbard quantum simulator, using previously unknown initial conditions. This work opens up new possibilities for exploring the relationship between scarring and various quantum phenomena.
PHYSICAL REVIEW RESEARCH
(2023)
