Experiments with Bose-Einstein condensates in a double-well potential by Shin, Yong-Il

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Superconducting resonator and Rydberg atom hybrid system in the strong coupling regime by Yu, Deshui, Landra, Alessandro, Valado, María Martínez, Hufnagel, Christoph, Kwek, Leong Chuan, Amico, Luigi, Dumke, Rainer

“…Like the nonlinearity induced by Josephson junctions in superconducting circuits, the large atom-resonator interface disturbs the harmonic potential of the resonator, resulting in an artificial two-level particle. …”
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Experiments on multi-level superconducting qubits and coaxial circuit QED by Peterer, M

“…</p> <p>Designing and building a 3D circuit QED setup involved the following main accomplishments: producing high quality 3D cavities; designing and installing the cryogenic microwave setup as well as the room temperature amplification and data acquisition circuitry; successfully developing a recipe for the fabrication of Josephson junctions; controlling and measuring superconducting 3D transmon qubits at 10mK. …”

GHz magnetoconductivity and spin resonance studies of strongly correlated systems by Narduzzo, A

“…Both normal and superconducting states are investigated, and Josephson plasma resonances and Fermi-surface traversal resonances are identified.…”

Multi-mode coaxial transmon qubits for quantum computing and sensing by Wills, JF

“…Constructed from three superconducting islands, connected via two Josephson junctions, the device possesses two transmon-like modes with orthogonal field symmetries. …”

Dynamically protected cat-qubits: a new paradigm for universal quantum computation by Mazyar Mirrahimi, Zaki Leghtas, Victor V Albert, Steven Touzard, Robert J Schoelkopf, Liang Jiang, Michel H Devoret

“…Finally, we also propose experimental schemes based on quantum superconducting circuits and inspired by methods used in Josephson parametric amplification, which should allow one to achieve these driven dissipative processes along with the Hamiltonians ensuring the universal operations in an efficient manner.…”
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Extremely large Lamb shift in a deep-strongly coupled circuit QED system with a multimode resonator by Ziqiao Ao, Sahel Ashhab, Fumiki Yoshihara, Tomoko Fuse, Kosuke Kakuyanagi, Shiro Saito, Takao Aoki, Kouichi Semba

“…The system comprises a superconducting flux qubit (FQ) and a quarter-wavelength coplanar waveguide resonator ( $$\lambda /4$$ λ / 4 CPWR) that are coupled inductively through a shared edge that contains a Josephson junction to achieve the DSC regime. Spectroscopy is performed around the frequency of the fundamental mode of the CPWR, and the spectrum is fitted by the single-mode quantum Rabi Hamiltonian to obtain the system parameters. …”
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Phase diagram and weak-link behavior in Nd-doped CaFe2As2 by Bo Gao, Xiaojiang Li, Qiucheng Ji, Gang Mu, Wei Li, Tao Hu, Ang Li, Xiaoming Xie

“…Compared to the low- T _c phase, the end point of SC transition of the high- T _c phase is more sensitive to the magnetic field, showing a characteristic of Josephson weak-link behavior. Possible scenarios about this system are discussed based on our observations. …”
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Hole-type superconducting gatemon qubit based on Ge/Si core/shell nanowires by Enna Zhuo, Zhaozheng Lyu, Xiaopei Sun, Ang Li, Bing Li, Zhongqing Ji, Jie Fan, E.P.A.M. Bakkers, Xiaodong Han, Xiaohui Song, Fanming Qu, Guangtong Liu, Jie Shen, Li Lu

“…Abstract We demonstrate that superconducting gatemon qubits based on superconductor-semiconductor-superconductor Josephson junctions can be constructed on hole-type Ge/Si core/shell nanowires. …”
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Nanopatterning of Weak Links in Superconducting Oxide Interfaces by Gyanendra Singh, Edouard Lesne, Dag Winkler, Tord Claeson, Thilo Bauch, Floriana Lombardi, Andrea D. Caviglia, Alexei Kalaboukhov

“…To investigate the symmetry of the superconducting order parameter, phase sensitive measurements of the Josephson effect are required. We describe an approach for the fabrication of artificial superconducting weak links at the LAO/STO interface using direct high-resolution electron beam lithography and low-energy argon ion beam irradiation. …”
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Discrete time symmetry breaking in quantum circuits: exact solutions and tunneling by Feng-Xiao Sun, Qiongyi He, Qihuang Gong, Run Yan Teh, Margaret D Reid, Peter D Drummond

“…Recent experiments in superconducting quantum circuit with Josephson junction nonlinearities give rise to new properties of strong parametric coupling and nonlinearities. …”
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Self-aligned formation of superconducting sub-5 nm PtSi films by Yao Yao, Daniel F. Fernandes, Tereza Košutová, Tomas Kubart, Zhen Zhang, François Lefloch, Frédéric Gustavo, Axel Leblanc, János L. Lábár, Béla Pécz, Shi-Li Zhang

“…Platinum silicide (PtSi) presents a promising superconductor for achieving silicon-based Josephson field-effect transistors (JoFETs). In a viable process flow to realize self-aligned PtSi formation, thermal oxidation at 600 °C is required to form a protective oxide layer on the surface of the as-formed PtSi selectively against Pt to facilitate subsequent selective etch in aqua regia. …”
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Observation of two distinct pairs fluctuation lifetimes and supercurrents in the pseudogap regime of cuprate junctions by Koren, Gad, Lee, Patrick A

“…X 4, 031017 (2014)] in our cuprate junctions is not feasible, due to Josephson vortices penetration into the superconducting electrodes which drove the necessary field above the depairing field.…”
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Band twisting and resilience to disorder in long-range topological superconductors by Puel, T. O., Viyuela Garcia, Oscar

“…Our findings are amenable to experimental verification in the near-future using atom arrays on conventional superconductors, planar Josephson junctions on two-dimensional electron gases, and Floquet driving of topological superconductors.…”
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Dimensional crossover in the quasi-one-dimensional superconductor TI2Mo6Se6 by Mitra, S., Petrović, Alexander Paul, Salloum, D., Gougeon, P., Potel, M., Zhu, Jian-Xin, Panagopoulos, Christos, Chia, Elbert Ee Min

“…In particular, the electrical resistivity below Tons3D is quantitatively consistent with the establishment of phase coherence through gradual binding of Josephson vortex strings to form 3D loops. This dimensional crossover within the superconducting state occurs despite the relatively large transverse hopping predicted from the band structure. …”
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Superconductivity of Y2O3 and BaZrO3 nanoparticles co-added YBa2Cu3O7− δ bulks prepared using co-precipitation method by Mohd Hapip, Nurhidayah, Chen, Soo Kien, Shaari, Abdul Halim, Awang Kechik, Mohd Mustafa, Tan, Kar Ban, Lim, Kean Pah

“…Tc-onset was decreased with co-addition of Y2O3 and BZO probably because of reduced hole concentration. The higher Josephson’s current, Io of the samples with co-addition of 0.0–2.0 mol% BZO compared with that of the pure one is likely to be due to improved grain coupling as shown by the AC susceptibility measurement. …”
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A robust image encryption scheme based on compressed sensing and novel 7D oscillato with complex dynamics. by Herman Landry Ndassi, Romanic Kengne, Armand Gabriel Gakam Tegue, Marceline Tingue Motchongom, Robert Tchitnga, Martin Tchoffo

“…Let's recall that up to date, phenomenon of transient chaos and plan equilibria hidden attractors are rarely reported in Josephson junction systems. This denothing the novelty of this article. …”
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Quantum simulation of interaction blockade in a two-site Bose–Hubbard system with solid quadrupolar crystal by Xinfang Nie, Jun Li, Jiangyu Cui, Zhihuang Luo, Jiahao Huang, Hongwei Chen, Chaohong Lee, Xinhua Peng, Jiangfeng Du

“…Interaction blockade is an important fundamental phenomenon in the two-site Bose–Hubbard system (BHS), which gives a full quantum description for the atomic Bose–Josephson junction. Using the analogy between the two-site BHS and the quadrupolar nuclear magnetic resonance (NMR) crystal, we experimentally simulate a two-site Bose–Hubbard system in a NMR quantum simulator composed of the quadrupolar spin-3/2 sodium nuclei of a NaNO _3 single crystal, and observe the interesting phenomenon of interaction blockade via adiabatic dynamics control. …”
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Transport and Point Contact Measurements on Pr_1−xCe_xPt₄Ge₁₂ Superconducting Polycrystals by Paola Romano, Francesco Avitabile, Angela Nigro, Gaia Grimaldi, Antonio Leo, Lei Shu, Jian Zhang, Antonio Di Bartolomeo, Filippo Giubileo

“…Interestingly, we show that the polycrystalline nature of the superconducting PrPt₄Ge₁₂ sample can favour the formation of an inter-grain Josephson junction in series with the point contact junction in this kind of experiments.…”
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A process for the preparation of high-quality and uniform large-scale Bi2212 superconducting films via the sol-gel method by Xingming Zhao, Zhishuai Lv, Yang Qi, Xiaoming Lu, Wei Wei, Dongmei Ma, Wang Gong, Fufa Wu, Tianlin Wang

“…Bi2212 high-temperature superconducting films (HTSFs) have garnered significant interest as a potential material for the development of high-Tc microwave and terahertz (THz) devices due to their intrinsic Josephson effect. This work presents the utilization of the polyvinyl pyrrolidone (PVP) -assisted sol-gel dip coating (PSGDC) method for the large-scale production of Bi2212 HTSFs. …”
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