journal
https://read.qxmd.com/read/38613312/erratum-new-perspectives-on-spectroscopic-factor-quenching-from-reactions-phys-rev-lett-131-212503-2023
#1
C Hebborn, F M Nunes, A E Lovell
This corrects the article DOI: 10.1103/PhysRevLett.131.212503.
March 29, 2024: Physical Review Letters
https://read.qxmd.com/read/38613311/broken-screw-rotational-symmetry-in-the-near-surface-electronic-structure-of-ab-stacked-crystals
#2
JOURNAL ARTICLE
Hiroaki Tanaka, Shota Okazaki, Masaru Kobayashi, Yuto Fukushima, Yosuke Arai, Takushi Iimori, Mikk Lippmaa, Kohei Yamagami, Yoshinori Kotani, Fumio Komori, Kenta Kuroda, Takao Sasagawa, Takeshi Kondo
We investigate the electronic structure of 2H-NbS_{2} and h-BN by angle-resolved photoemission spectroscopy (ARPES) and photoemission intensity calculations. Although in bulk form, these materials are expected to exhibit band degeneracy in the k_{z}=π/c plane due to screw rotation and time-reversal symmetries, we observe gapped band dispersion near the surface. We extract from first-principles calculations the near-surface electronic structure probed by ARPES and find that the calculated photoemission spectra from the near-surface region reproduce the gapped ARPES spectra...
March 29, 2024: Physical Review Letters
https://read.qxmd.com/read/38613310/rotationally-invariant-circuits-universality-with-the-exchange-interaction-and-two-ancilla-qubits
#3
JOURNAL ARTICLE
Iman Marvian, Hanqing Liu, Austin Hulse
Universality of local unitary transformations is one of the cornerstones of quantum computing with many applications and implications that go beyond this field. However, it has recently been shown that this universality does not hold in the presence of continuous symmetries: generic symmetric unitaries on a composite system cannot be implemented, even approximately, using local symmetric unitaries on the subsystems. In this Letter, we show that, despite these constraints, any SU(2) rotationally invariant unitary can be realized with the Heisenberg exchange interaction, which is 2-local and rotationally invariant, provided that the system interacts with a pair of ancilla qubits...
March 29, 2024: Physical Review Letters
https://read.qxmd.com/read/38613309/gottesman-kitaev-preskill-state-preparation-using-periodic-driving
#4
JOURNAL ARTICLE
Xanda C Kolesnikow, Raditya W Bomantara, Andrew C Doherty, Arne L Grimsmo
The Gottesman-Kitaev-Preskill (GKP) code may be used to overcome noise in continuous variable quantum systems. However, preparing GKP states remains experimentally challenging. We propose a method for preparing GKP states by engineering a time-periodic Hamiltonian whose Floquet states are GKP states. This Hamiltonian may be realized in a superconducting circuit comprising a SQUID shunted by a superinductor and a capacitor, with a characteristic impedance twice the resistance quantum. The GKP Floquet states can be prepared by adiabatically tuning the frequency of the external magnetic flux drive...
March 29, 2024: Physical Review Letters
https://read.qxmd.com/read/38613308/quantum-light-generation-based-on-gan-microring-toward-fully-on-chip-source
#5
JOURNAL ARTICLE
Hong Zeng, Zhao-Qin He, Yun-Ru Fan, Yue Luo, Chen Lyu, Jin-Peng Wu, Yun-Bo Li, Sheng Liu, Dong Wang, De-Chao Zhang, Juan-Juan Zeng, Guang-Wei Deng, You Wang, Hai-Zhi Song, Zhen Wang, Li-Xing You, Kai Guo, Chang-Zheng Sun, Yi Luo, Guang-Can Guo, Qiang Zhou
An integrated quantum light source is increasingly desirable in large-scale quantum information processing. Despite recent remarkable advances, a new material platform is constantly being explored for the fully on-chip integration of quantum light generation, active and passive manipulation, and detection. Here, for the first time, we demonstrate a gallium nitride (GaN) microring based quantum light generation in the telecom C-band, which has potential toward the monolithic integration of quantum light source...
March 29, 2024: Physical Review Letters
https://read.qxmd.com/read/38613307/observation-of-d-%C3%A2-k_-s-0-a_-0-980-in-the-amplitude-analysis-of-d-%C3%A2-k_-s-0-%C3%AF-%C3%AE
#6
JOURNAL ARTICLE
M Ablikim, M N Achasov, P Adlarson, X C Ai, R Aliberti, A Amoroso, M R An, Q An, Y Bai, O Bakina, I Balossino, Y Ban, H-R Bao, V Batozskaya, K Begzsuren, N Berger, M Berlowski, M Bertani, D Bettoni, F Bianchi, E Bianco, A Bortone, I Boyko, R A Briere, A Brueggemann, H Cai, X Cai, A Calcaterra, G F Cao, N Cao, S A Cetin, J F Chang, T T Chang, W L Chang, G R Che, G Chelkov, C Chen, Chao Chen, G Chen, H S Chen, M L Chen, S J Chen, S L Chen, S M Chen, T Chen, X R Chen, X T Chen, Y B Chen, Y Q Chen, Z J Chen, S K Choi, X Chu, G Cibinetto, S C Coen, F Cossio, J J Cui, H L Dai, J P Dai, A Dbeyssi, R E de Boer, D Dedovich, Z Y Deng, A Denig, I Denysenko, M Destefanis, F De Mori, B Ding, X X Ding, Y Ding, Y Ding, J Dong, L Y Dong, M Y Dong, X Dong, M C Du, S X Du, Z H Duan, P Egorov, Y H Fan, J Fang, S S Fang, W X Fang, Y Fang, Y Q Fang, R Farinelli, L Fava, F Feldbauer, G Felici, C Q Feng, J H Feng, Y T Feng, K Fischer, M Fritsch, C D Fu, J L Fu, Y W Fu, H Gao, Y N Gao, Yang Gao, S Garbolino, I Garzia, P T Ge, Z W Ge, C Geng, E M Gersabeck, A Gilman, K Goetzen, L Gong, W X Gong, W Gradl, S Gramigna, M Greco, M H Gu, Y T Gu, C Y Guan, Z L Guan, A Q Guo, L B Guo, M J Guo, R P Guo, Y P Guo, A Guskov, J Gutierrez, T T Han, W Y Han, X Q Hao, F A Harris, K K He, K L He, F H H Heinsius, C H Heinz, Y K Heng, C Herold, T Holtmann, P C Hong, G Y Hou, X T Hou, Y R Hou, Z L Hou, B Y Hu, H M Hu, J F Hu, T Hu, Y Hu, G S Huang, K X Huang, L Q Huang, X T Huang, Y P Huang, T Hussain, N Hüsken, N In der Wiesche, M Irshad, J Jackson, S Jaeger, S Janchiv, J H Jeong, Q Ji, Q P Ji, X B Ji, X L Ji, Y Y Ji, X Q Jia, Z K Jia, H J Jiang, P C Jiang, S S Jiang, T J Jiang, X S Jiang, Y Jiang, J B Jiao, Z Jiao, S Jin, Y Jin, M Q Jing, X M Jing, T Johansson, X Kui, S Kabana, N Kalantar-Nayestanaki, X L Kang, X S Kang, M Kavatsyuk, B C Ke, V Khachatryan, A Khoukaz, R Kiuchi, R Kliemt, O B Kolcu, B Kopf, M Kuessner, A Kupsc, W Kühn, J J Lane, P Larin, A Lavania, L Lavezzi, T T Lei, Z H Lei, H Leithoff, M Lellmann, T Lenz, C Li, C Li, C H Li, Cheng Li, D M Li, F Li, G Li, H Li, H B Li, H J Li, H N Li, Hui Li, J R Li, J S Li, J W Li, Ke Li, L J Li, L K Li, Lei Li, M H Li, P R Li, Q X Li, S X Li, T Li, W D Li, W G Li, X H Li, X L Li, Xiaoyu Li, Y G Li, Z J Li, Z X Li, C Liang, H Liang, H Liang, Y F Liang, Y T Liang, G R Liao, L Z Liao, Y P Liao, J Libby, A Limphirat, D X Lin, T Lin, B J Liu, B X Liu, C Liu, C X Liu, F H Liu, Fang Liu, Feng Liu, G M Liu, H Liu, H B Liu, H M Liu, Huanhuan Liu, Huihui Liu, J B Liu, J Y Liu, K Liu, K Y Liu, Ke Liu, L Liu, L C Liu, Lu Liu, M H Liu, P L Liu, Q Liu, S B Liu, T Liu, W K Liu, W M Liu, X Liu, Y Liu, Y Liu, Y B Liu, Z A Liu, Z Q Liu, X C Lou, F X Lu, H J Lu, J G Lu, X L Lu, Y Lu, Y P Lu, Z H Lu, C L Luo, M X Luo, T Luo, X L Luo, X R Lyu, Y F Lyu, F C Ma, H Ma, H L Ma, J L Ma, L L Ma, M M Ma, Q M Ma, R Q Ma, X Y Ma, Y Ma, Y M Ma, F E Maas, M Maggiora, S Malde, Q A Malik, A Mangoni, Y J Mao, Z P Mao, S Marcello, Z X Meng, J G Messchendorp, G Mezzadri, H Miao, T J Min, R E Mitchell, X H Mo, B Moses, N Yu Muchnoi, J Muskalla, Y Nefedov, F Nerling, I B Nikolaev, Z Ning, S Nisar, Q L Niu, W D Niu, Y Niu, S L Olsen, Q Ouyang, S Pacetti, X Pan, Y Pan, A Pathak, P Patteri, Y P Pei, M Pelizaeus, H P Peng, Y Y Peng, K Peters, J L Ping, R G Ping, S Plura, V Prasad, F Z Qi, H Qi, H R Qi, M Qi, T Y Qi, S Qian, W B Qian, C F Qiao, J J Qin, L Q Qin, X S Qin, Z H Qin, J F Qiu, S Q Qu, C F Redmer, K J Ren, A Rivetti, M Rolo, G Rong, Ch Rosner, S N Ruan, N Salone, A Sarantsev, Y Schelhaas, K Schoenning, M Scodeggio, K Y Shan, W Shan, X Y Shan, J F Shangguan, L G Shao, M Shao, C P Shen, H F Shen, W H Shen, X Y Shen, B A Shi, H C Shi, J L Shi, J Y Shi, Q Q Shi, R S Shi, X Shi, J J Song, T Z Song, W M Song, Y J Song, Y X Song, S Sosio, S Spataro, F Stieler, Y J Su, G B Sun, G X Sun, H Sun, H K Sun, J F Sun, K Sun, L Sun, S S Sun, T Sun, W Y Sun, Y Sun, Y J Sun, Y Z Sun, Z T Sun, Y X Tan, C J Tang, G Y Tang, J Tang, Y A Tang, L Y Tao, Q T Tao, M Tat, J X Teng, V Thoren, W H Tian, W H Tian, Y Tian, Z F Tian, I Uman, Y Wan, S J Wang, B Wang, B L Wang, Bo Wang, C W Wang, D Y Wang, F Wang, H J Wang, J P Wang, K Wang, L L Wang, M Wang, Meng Wang, N Y Wang, S Wang, S Wang, T Wang, T J Wang, W Wang, W Wang, W P Wang, X Wang, X F Wang, X J Wang, X L Wang, Y Wang, Y D Wang, Y F Wang, Y L Wang, Y N Wang, Y Q Wang, Yaqian Wang, Yi Wang, Z Wang, Z L Wang, Z Y Wang, Ziyi Wang, D Wei, D H Wei, F Weidner, S P Wen, C W Wenzel, U Wiedner, G Wilkinson, M Wolke, L Wollenberg, C Wu, J F Wu, L H Wu, L J Wu, X Wu, X H Wu, Y Wu, Y H Wu, Y J Wu, Z Wu, L Xia, X M Xian, T Xiang, D Xiao, G Y Xiao, S Y Xiao, Y L Xiao, Z J Xiao, C Xie, X H Xie, Y Xie, Y G Xie, Y H Xie, Z P Xie, T Y Xing, C F Xu, C J Xu, G F Xu, H Y Xu, Q J Xu, Q N Xu, W Xu, W L Xu, X P Xu, Y C Xu, Z P Xu, Z S Xu, F Yan, L Yan, W B Yan, W C Yan, X Q Yan, H J Yang, H L Yang, H X Yang, Tao Yang, Y Yang, Y F Yang, Y X Yang, Yifan Yang, Z W Yang, Z P Yao, M Ye, M H Ye, J H Yin, Z Y You, B X Yu, C X Yu, G Yu, J S Yu, T Yu, X D Yu, Y C Yu, C Z Yuan, L Yuan, S C Yuan, Y Yuan, Z Y Yuan, C X Yue, A A Zafar, F R Zeng, S H Zeng, X Zeng, Y Zeng, Y J Zeng, X Y Zhai, Y C Zhai, Y H Zhan, A Q Zhang, B L Zhang, B X Zhang, D H Zhang, G Y Zhang, H Zhang, H C Zhang, H H Zhang, H H Zhang, H Q Zhang, H Y Zhang, J Zhang, J Zhang, J J Zhang, J L Zhang, J Q Zhang, J W Zhang, J X Zhang, J Y Zhang, J Z Zhang, Jianyu Zhang, L M Zhang, L Q Zhang, Lei Zhang, P Zhang, Q Y Zhang, Shuihan Zhang, Shulei Zhang, X D Zhang, X M Zhang, X Y Zhang, Y Zhang, Y Zhang, Y T Zhang, Y H Zhang, Yan Zhang, Yao Zhang, Z D Zhang, Z H Zhang, Z L Zhang, Z Y Zhang, Z Y Zhang, G Zhao, J Y Zhao, J Z Zhao, Lei Zhao, Ling Zhao, M G Zhao, R P Zhao, S J Zhao, Y B Zhao, Y X Zhao, Z G Zhao, A Zhemchugov, B Zheng, J P Zheng, W J Zheng, Y H Zheng, B Zhong, X Zhong, H Zhou, L P Zhou, X Zhou, X K Zhou, X R Zhou, X Y Zhou, Y Z Zhou, J Zhu, K Zhu, K J Zhu, L Zhu, L X Zhu, S H Zhu, S Q Zhu, T J Zhu, W J Zhu, Y C Zhu, Z A Zhu, J H Zou, J Zu
We perform for the first time an amplitude analysis of the decay D^{+}→K_{S}^{0}π^{+}η and report the observation of the decay D^{+}→K_{S}^{0}a_{0}(980)^{+} using 2.93  fb^{-1} of e^{+}e^{-} collision data taken at a center-of-mass energy of 3.773 GeV with the BESIII detector. As the only W-annihilation-free decay among D to a_{0}(980) pseudoscalar, D^{+}→K_{S}^{0}a_{0}(980)^{+} is the ideal decay in extracting the contributions of the W-emission amplitudes involving a_{0}(980) and to study the final-state interactions...
March 29, 2024: Physical Review Letters
https://read.qxmd.com/read/38613306/realizing-synthetic-dimensions-and-artificial-magnetic-flux-in-a-trapped-ion-quantum-simulator
#7
JOURNAL ARTICLE
Y Wang, Y-K Wu, Y Jiang, M-L Cai, B-W Li, Q-X Mei, B-X Qi, Z-C Zhou, L-M Duan
Synthetic dimension is a potent tool in quantum simulation of topological phases of matter. Here we propose and demonstrate a scheme to simulate an anisotropic Harper-Hofstadter model with controllable magnetic flux on a two-leg ladder using the spin and motional states of a single trapped ion. We verify the successful simulation of this model by comparing the measured dynamics with theoretical predictions under various coupling strength and magnetic flux, and we observe the chiral motion of wave packets on the ladder as evidence of the topological chiral edge modes...
March 29, 2024: Physical Review Letters
https://read.qxmd.com/read/38613305/fate-of-chiral-symmetries-in-the-quark-gluon-plasma-from-an-instanton-based-random-matrix-model-of-qcd
#8
JOURNAL ARTICLE
Tamás G Kovács
We propose a new way of understanding how chiral symmetry is realized in the high temperature phase of QCD. Based on the finding that a simple free instanton gas precisely describes the details of the lowest part of the spectrum of the lattice overlap Dirac operator, we propose an instanton-based random matrix model of QCD with dynamical quarks. Simulations of this model reveal that even for small quark mass the Dirac spectral density has a singularity at the origin, caused by a dilute gas of free instantons...
March 29, 2024: Physical Review Letters
https://read.qxmd.com/read/38613304/emergent-inflation-of-the-efimov-spectrum-under-three-body-spin-exchange-interactions
#9
JOURNAL ARTICLE
J van de Kraats, D J M Ahmed-Braun, J-L Li, S J J M F Kokkelmans
We resolve the unexpected and long-standing disagreement between experiment and theory in the Efimovian three-body spectrum of ^{7}Li, commonly referred to as the lithium few-body puzzle. Our results show that the discrepancy arises out of the presence of strong nonuniversal three-body spin-exchange interactions, which enact an effective inflation of the universal Efimov spectrum. This conclusion is obtained from a thorough numerical solution of the quantum mechanical three-body problem, including precise interatomic interactions and all spin degrees of freedom for three alkali-metal atoms...
March 29, 2024: Physical Review Letters
https://read.qxmd.com/read/38613303/terminable-transitions-in-a-topological-fermionic-ladder
#10
JOURNAL ARTICLE
Yuchi He, Dante M Kennes, Christoph Karrasch, Roman Rausch
Interacting fermionic ladders are versatile platforms to study quantum phases of matter, such as different types of Mott insulators. In particular, there are D-Mott and S-Mott states that hold preformed fermion pairs and become paired-fermion liquids upon doping (d wave and s wave, respectively). We show that the D-Mott and S-Mott phases are in fact two facets of the same topological phase and that the transition between them is terminable. These results provide a quantum analog of the well-known terminable liquid-to-gas transition...
March 29, 2024: Physical Review Letters
https://read.qxmd.com/read/38613302/search-for-a-neutron-dark-decay-in-6-he
#11
JOURNAL ARTICLE
M Le Joubioux, H Savajols, W Mittig, X Fléchard, L Hayen, Yu E Penionzhkevich, D Ackermann, C Borcea, L Caceres, P Delahaye, F Didierjean, S Franchoo, A Grillet, B Jacquot, M Lebois, X Ledoux, N Lecesne, E Liénard, S Lukyanov, O Naviliat-Cuncic, J Piot, A Singh, V Smirnov, C Stodel, D Testov, D Thisse, J C Thomas, D Verney
Neutron dark decays have been suggested as a solution to the discrepancy between bottle and beam experiments, providing a dark matter candidate that can be searched for in halo nuclei. The free neutron in the final state following the decay of ^{6}He into ^{4}He+n+χ provides an exceptionally clean detection signature when combined with a high efficiency neutron detector. Using a high-intensity ^{6}He^{+} beam at Grand Accélérateur National d'Ions Lourds, a search for a coincident neutron signal resulted in an upper limit on a dark decay branching ratio of Br_{χ}≤4...
March 29, 2024: Physical Review Letters
https://read.qxmd.com/read/38613301/quantum-geometry-induced-anomalous-hall-effect-in-nonunitary-superconductors-and-application-to-sr_-2-ruo_-4
#12
JOURNAL ARTICLE
Jia-Long Zhang, Weipeng Chen, Hao-Tian Liu, Yu Li, Zhiqiang Wang, Wen Huang
The polar Kerr effect and the closely related anomalous charge Hall effect are among the most distinguishing signatures of the superconducting state in Sr_{2}RuO_{4}, as well as in several other compounds. These effects are often thought to be derived from chiral superconducting pairing, and different mechanisms have been invoked for the explanation. However, the intrinsic mechanisms proposed previously often involve unrealistically strong interband Cooper pairing. We show in this Letter that, even without interband pairing, nonunitary superconducting states can support the intrinsic anomalous charge Hall effect, thanks to the quantum geometric properties of the Bloch electrons...
March 29, 2024: Physical Review Letters
https://read.qxmd.com/read/38613300/electrically-tunable-single-polaritonic-quantum-dot-at-room-temperature
#13
JOURNAL ARTICLE
Hyeongwoo Lee, Benjamin G Whetten, Byong Jae Kim, Ju Young Woo, Yeonjeong Koo, Jinhyuk Bae, Mingu Kang, Taeyoung Moon, Huitae Joo, Sohee Jeong, Jaehoon Lim, Alexander L Efros, Markus B Raschke, Matthew Pelton, Kyoung-Duck Park
Exciton-polaritons confined in plasmonic cavities are hybridized light-matter quasiparticles, with distinct optical characteristics compared to plasmons and excitons alone. Here, we demonstrate the electric tunability of a single polaritonic quantum dot operating at room temperature in electric-field tip-enhanced strong coupling spectroscopy. For a single quantum dot in the nanoplasmonic tip cavity with variable dc local electric field, we dynamically control the Rabi frequency with the corresponding polariton emission, crossing weak to strong coupling...
March 29, 2024: Physical Review Letters
https://read.qxmd.com/read/38613299/coherent-spin-phonon-scattering-in-facilitated-rydberg-lattices
#14
JOURNAL ARTICLE
Matteo Magoni, Chris Nill, Igor Lesanovsky
We investigate the dynamics of a one-dimensional spin system with facilitation constraint that can be studied using Rydberg atoms in arrays of optical tweezer traps. The elementary degrees of freedom of the system are domains of Rydberg excitations that expand ballistically through the lattice. Because of mechanical forces, Rydberg excited atoms are coupled to vibrations within their traps. At zero temperature and large trap depth, it is known that virtually excited lattice vibrations only renormalize the timescale of the ballistic propagation...
March 29, 2024: Physical Review Letters
https://read.qxmd.com/read/38613298/orbital-selective-mott-transition-effects-and-nontrivial-topology-of-iron-chalcogenide
#15
JOURNAL ARTICLE
Minjae Kim, Sangkook Choi, Walber Hugo Brito, Gabriel Kotliar
The iron-based superconductor FeSe_{1-x}Te_{x} has recently gained significant attention as a host of two distinct physical phenomena: (i) Majorana zero modes that can serve as potential topologically protected qubits, and (ii) a realization of the orbital-selective Mott transition. In this Letter, we connect these two phenomena and provide new insights into the interplay between strong electronic correlations and nontrivial topology in FeSe_{1-x}Te_{x}. Using linearized quasiparticle self-consistent GW plus dynamical mean-field theory, we show that the topologically protected Dirac surface state has substantial Fe(d_{xy}) character...
March 29, 2024: Physical Review Letters
https://read.qxmd.com/read/38613297/three-dimensional-chiral-morphogenesis-of-active-fluids
#16
JOURNAL ARTICLE
Zhong-Yi Li, Yun-Ping Chen, Hao-Yu Liu, Bo Li
Chirality is an essential nature of biological systems. However, it remains obscure how the handedness at the microscale is translated into chiral morphogenesis at the tissue level. Here, we investigate three-dimensional (3D) tissue morphogenesis using an active fluid theory invoking chirality. We show that the coordination of achiral and chiral stresses, arising from microscopic interactions and energy input of individual cells, can engender the self-organization of 3D papillary and helical structures. The achiral active stress drives the nucleation of asterlike topological defects, which initiate 3D out-of-plane budding, followed by rodlike elongation...
March 29, 2024: Physical Review Letters
https://read.qxmd.com/read/38613296/search-for-antideuterons-of-cosmic-origin-using-the-bess-polar-ii-magnetic-rigidity-spectrometer
#17
JOURNAL ARTICLE
K Sakai, H Fuke, K Yoshimura, M Sasaki, K Abe, S Haino, T Hams, M Hasegawa, K C Kim, M H Lee, Y Makida, J W Mitchell, J Nishimura, M Nozaki, R Orito, J F Ormes, E S Seo, R E Streitmatter, N Thakur, A Yamamoto, T Yoshida
We searched for antideuterons (d[over ¯]'s) in the 4.7×10^{9} cosmic-ray events observed during the BESS-Polar II flight at solar minimum in 2007-2008 but found no candidates. The resulting 95% C.L. upper limit on the d[over ¯] flux is 6.7×10^{-5}  (m^{2} s sr GeV/n)^{-1} in an energy range from 0.163 to 1.100  GeV/n. The result has improved by more than a factor of 14 from the upper limit of BESS97, which had a potential comparable to that of BESS-Polar II in the search for cosmic-origin d[over ¯]'s and was conducted during the former solar minimum...
March 29, 2024: Physical Review Letters
https://read.qxmd.com/read/38613295/arcsine-laws-of-light
#18
JOURNAL ARTICLE
V G Ramesh, K J H Peters, S R K Rodriguez
We demonstrate that the time-integrated light intensity transmitted by a coherently driven resonator obeys Lévy's arcsine laws-a cornerstone of extreme value statistics. We show that convergence to the arcsine distribution is algebraic, universal, and independent of nonequilibrium behavior due to nonconservative forces or nonadiabatic driving. We furthermore verify, numerically, that the arcsine laws hold in the presence of frequency noise and in Kerr-nonlinear resonators supporting non-Gaussian states...
March 29, 2024: Physical Review Letters
https://read.qxmd.com/read/38613294/derivation-of-the-invariant-free-energy-landscape-based-on-langevin-dynamics
#19
JOURNAL ARTICLE
Takenobu Nakamura
A conventionally defined free-energy landscape (FEL) exhibits unphysical dependence on the choice of reaction coordinates and hence lacks universal predictive ability. We here show that three physically plausible requirements uniquely determine the FEL formula for a given reaction coordinate. Our FEL is expressed solely in terms of quantities obtained through time-series data analysis, namely, the probability distribution and the diffusion matrix. It is free from any unphysical coordinate dependence and coincides with the conventional FEL in special cases...
March 29, 2024: Physical Review Letters
https://read.qxmd.com/read/38613293/heralded-three-photon-entanglement-from-a-single-photon-source-on-a-photonic-chip
#20
JOURNAL ARTICLE
Si Chen, Li-Chao Peng, Y-P Guo, X-M Gu, X Ding, R-Z Liu, J-Y Zhao, X You, J Qin, Y-F Wang, Yu-Ming He, Jelmer J Renema, Yong-Heng Huo, Hui Wang, Chao-Yang Lu, Jian-Wei Pan
In the quest to build general-purpose photonic quantum computers, fusion-based quantum computation has risen to prominence as a promising strategy. This model allows a ballistic construction of large cluster states which are universal for quantum computation, in a scalable and loss-tolerant way without feed forward, by fusing many small n-photon entangled resource states. However, a key obstacle to this architecture lies in efficiently generating the required essential resource states on photonic chips. One such critical seed state that has not yet been achieved is the heralded three-photon Greenberger-Horne-Zeilinger (3-GHZ) state...
March 29, 2024: Physical Review Letters
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