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Tight Lieb–Robinson Bound for approximation ratio in quantum annealing npj Quantum Inform. (IF 7.6) Pub Date : 2024-04-17 Arthur Braida, Simon Martiel, Ioan Todinca
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Error-mitigated fermionic classical shadows on noisy quantum devices npj Quantum Inform. (IF 7.6) Pub Date : 2024-04-16 Bujiao Wu, Dax Enshan Koh
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Entangling entanglement: coupling frequency and polarization of biphotons on demand npj Quantum Inform. (IF 7.6) Pub Date : 2024-04-12 Arash Riazi, Eric Y. Zhu, Dan Xu, Li Qian
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Fast pseudorandom quantum state generators via inflationary quantum gates npj Quantum Inform. (IF 7.6) Pub Date : 2024-04-10 Claudio Chamon, Eduardo R. Mucciolo, Andrei E. Ruckenstein, Zhi-Cheng Yang
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Criticality-enhanced electric field gradient sensor with single trapped ions npj Quantum Inform. (IF 7.6) Pub Date : 2024-04-10 Theodoros Ilias, Dayou Yang, Susana F. Huelga, Martin B. Plenio
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Verifying the security of a continuous variable quantum communication protocol via quantum metrology npj Quantum Inform. (IF 7.6) Pub Date : 2024-04-04 Lorcán O. Conlon, Biveen Shajilal, Angus Walsh, Jie Zhao, Jiri Janousek, Ping Koy Lam, Syed M. Assad
Quantum mechanics offers the possibility of unconditionally secure communication between multiple remote parties. Security proofs for such protocols typically rely on bounding the capacity of the quantum channel in use. In a similar manner, Cramér-Rao bounds in quantum metrology place limits on how much information can be extracted from a given quantum state about some unknown parameters of interest
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Black-hole powered quantum coherent amplifier npj Quantum Inform. (IF 7.6) Pub Date : 2024-03-28 Avijit Misra, Pritam Chattopadhyay, Anatoly Svidzinsky, Marlan O. Scully, Gershon Kurizki
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Modeling Si/SiGe quantum dot variability induced by interface disorder reconstructed from multiperspective microscopy npj Quantum Inform. (IF 7.6) Pub Date : 2024-03-27 Luis Fabián Peña, Justine C. Koepke, Joseph Houston Dycus, Andrew Mounce, Andrew D. Baczewski, N. Tobias Jacobson, Ezra Bussmann
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Low disorder and high valley splitting in silicon npj Quantum Inform. (IF 7.6) Pub Date : 2024-03-13 Davide Degli Esposti, Lucas E. A. Stehouwer, Önder Gül, Nodar Samkharadze, Corentin Déprez, Marcel Meyer, Ilja N. Meijer, Larysa Tryputen, Saurabh Karwal, Marc Botifoll, Jordi Arbiol, Sergey V. Amitonov, Lieven M. K. Vandersypen, Amir Sammak, Menno Veldhorst, Giordano Scappucci
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Short-depth QAOA circuits and quantum annealing on higher-order ising models npj Quantum Inform. (IF 7.6) Pub Date : 2024-03-12 Elijah Pelofske, Andreas Bärtschi, Stephan Eidenbenz
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Pipeline quantum processor architecture for silicon spin qubits npj Quantum Inform. (IF 7.6) Pub Date : 2024-03-12 S. M. Patomäki, M. F. Gonzalez-Zalba, M. A. Fogarty, Z. Cai, S. C. Benjamin, J. J. L. Morton
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Simulating photosynthetic energy transport on a photonic network npj Quantum Inform. (IF 7.6) Pub Date : 2024-03-11 Hao Tang, Xiao-Wen Shang, Zi-Yu Shi, Tian-Shen He, Zhen Feng, Tian-Yu Wang, Ruoxi Shi, Hui-Ming Wang, Xi Tan, Xiao-Yun Xu, Yao Wang, Jun Gao, M. S. Kim, Xian-Min Jin
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Non-symmetric Pauli spin blockade in a silicon double quantum dot npj Quantum Inform. (IF 7.6) Pub Date : 2024-03-06 Theodor Lundberg, David J. Ibberson, Jing Li, Louis Hutin, José C. Abadillo-Uriel, Michele Filippone, Benoit Bertrand, Andreas Nunnenkamp, Chang-Min Lee, Nadia Stelmashenko, Jason W. A. Robinson, Maud Vinet, Lisa Ibberson, Yann-Michel Niquet, M. Fernando Gonzalez-Zalba
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Analyzing variational quantum landscapes with information content npj Quantum Inform. (IF 7.6) Pub Date : 2024-02-29 Adrián Pérez-Salinas, Hao Wang, Xavier Bonet-Monroig
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Variational quantum algorithm for experimental photonic multiparameter estimation npj Quantum Inform. (IF 7.6) Pub Date : 2024-02-28 Valeria Cimini, Mauro Valeri, Simone Piacentini, Francesco Ceccarelli, Giacomo Corrielli, Roberto Osellame, Nicolò Spagnolo, Fabio Sciarrino
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Efficient bosonic nonlinear phase gates npj Quantum Inform. (IF 7.6) Pub Date : 2024-02-23 Kimin Park, Radim Filip
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Better-than-classical Grover search via quantum error detection and suppression npj Quantum Inform. (IF 7.6) Pub Date : 2024-02-20 Bibek Pokharel, Daniel A. Lidar
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Wide-field Fourier magnetic imaging with electron spins in diamond npj Quantum Inform. (IF 7.6) Pub Date : 2024-02-21 Zhongzhi Guo, You Huang, Mingcheng Cai, Chunxing Li, Mengze Shen, Mengqi Wang, Pei Yu, Ya Wang, Fazhan Shi, Pengfei Wang, Jiangfeng Du
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Rapid single-shot parity spin readout in a silicon double quantum dot with fidelity exceeding 99% npj Quantum Inform. (IF 7.6) Pub Date : 2024-02-13 Kenta Takeda, Akito Noiri, Takashi Nakajima, Leon C. Camenzind, Takashi Kobayashi, Amir Sammak, Giordano Scappucci, Seigo Tarucha
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High temperature spin selectivity in a quantum dot qubit using reservoir spin accumulation npj Quantum Inform. (IF 7.6) Pub Date : 2024-02-03 R. Jansen, S. Yuasa
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Semi-device-independent quantum random number generator with a broadband squeezed state of light npj Quantum Inform. (IF 7.6) Pub Date : 2024-02-01 Jialin Cheng, Shaocong Liang, Jiliang Qin, Jiatong Li, Zhihui Yan, Xiaojun Jia, Changde Xie, Kunchi Peng
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Quantum storage of 1650 modes of single photons at telecom wavelength npj Quantum Inform. (IF 7.6) Pub Date : 2024-02-01 Shi-Hai Wei, Bo Jing, Xue-Ying Zhang, Jin-Yu Liao, Hao Li, Li-Xing You, Zhen Wang, You Wang, Guang-Wei Deng, Hai-Zhi Song, Daniel Oblak, Guang-Can Guo, Qiang Zhou
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Quantifying the effect of gate errors on variational quantum eigensolvers for quantum chemistry npj Quantum Inform. (IF 7.6) Pub Date : 2024-01-27 Kieran Dalton, Christopher K. Long, Yordan S. Yordanov, Charles G. Smith, Crispin H. W. Barnes, Normann Mertig, David R. M. Arvidsson-Shukur
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Controlling the photon number coherence of solid-state quantum light sources for quantum cryptography npj Quantum Inform. (IF 7.6) Pub Date : 2024-01-27 Yusuf Karli, Daniel A. Vajner, Florian Kappe, Paul C. A. Hagen, Lena M. Hansen, René Schwarz, Thomas K. Bracht, Christian Schimpf, Saimon F. Covre da Silva, Philip Walther, Armando Rastelli, Vollrath Martin Axt, Juan C. Loredo, Vikas Remesh, Tobias Heindel, Doris E. Reiter, Gregor Weihs
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Three-dimensional magnetic resonance tomography with sub-10 nanometer resolution npj Quantum Inform. (IF 7.6) Pub Date : 2024-01-25 Mohammad T. Amawi, Andrii Trelin, You Huang, Paul Weinbrenner, Francesco Poggiali, Joachim Leibold, Martin Schalk, Friedemann Reinhard
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Quantum state preparation of normal distributions using matrix product states npj Quantum Inform. (IF 7.6) Pub Date : 2024-01-25 Jason Iaconis, Sonika Johri, Elton Yechao Zhu
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Valid and efficient entanglement verification with finite copies of a quantum state npj Quantum Inform. (IF 7.6) Pub Date : 2024-01-24 Paweł Cieśliński, Jan Dziewior, Lukas Knips, Waldemar Kłobus, Jasmin Meinecke, Tomasz Paterek, Harald Weinfurter, Wiesław Laskowski
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Topological single-photon emission from quantum emitter chains npj Quantum Inform. (IF 7.6) Pub Date : 2024-01-23 Yubin Wang, Huawen Xu, Xinyi Deng, Timothy C. H. Liew, Sanjib Ghosh, Qihua Xiong
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Quantum LOSR networks cannot generate graph states with high fidelity npj Quantum Inform. (IF 7.6) Pub Date : 2024-01-22 Yi-Xuan Wang, Zhen-Peng Xu, Otfried Gühne
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Theoretical guarantees for permutation-equivariant quantum neural networks npj Quantum Inform. (IF 7.6) Pub Date : 2024-01-22 Louis Schatzki, Martín Larocca, Quynh T. Nguyen, Frédéric Sauvage, M. Cerezo
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Hong-Ou-Mandel interference of single-photon-level pulses stored in independent room-temperature quantum memories npj Quantum Inform. (IF 7.6) Pub Date : 2024-01-15 Sonali Gera, Chase Wallace, Mael Flament, Alessia Scriminich, Mehdi Namazi, Youngshin Kim, Steven Sagona-Stophel, Giuseppe Vallone, Paolo Villoresi, Eden Figueroa
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Experimental graybox quantum system identification and control npj Quantum Inform. (IF 7.6) Pub Date : 2024-01-13 Akram Youssry, Yang Yang, Robert J. Chapman, Ben Haylock, Francesco Lenzini, Mirko Lobino, Alberto Peruzzo
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Hamiltonian phase error in resonantly driven CNOT gate above the fault-tolerant threshold npj Quantum Inform. (IF 7.6) Pub Date : 2024-01-11 Yi-Hsien Wu, Leon C. Camenzind, Akito Noiri, Kenta Takeda, Takashi Nakajima, Takashi Kobayashi, Chien-Yuan Chang, Amir Sammak, Giordano Scappucci, Hsi-Sheng Goan, Seigo Tarucha
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Extending loophole-free nonlocal correlations to arbitrarily large distances npj Quantum Inform. (IF 7.6) Pub Date : 2024-01-11 Anubhav Chaturvedi, Giuseppe Viola, Marcin Pawłowski
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Classical shadows with Pauli-invariant unitary ensembles npj Quantum Inform. (IF 7.6) Pub Date : 2024-01-08 Kaifeng Bu, Dax Enshan Koh, Roy J. Garcia, Arthur Jaffe
Classical shadows provide a noise-resilient and sample-efficient method for learning quantum system properties, relying on a user-specified unitary ensemble. What is the weakest assumption on this ensemble that can still yield meaningful results? To address this, we focus on Pauli-invariant unitary ensembles—those invariant under multiplication by Pauli operators. For these ensembles, we present explicit
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High frequency magnetometry with an ensemble of spin qubits in hexagonal boron nitride npj Quantum Inform. (IF 7.6) Pub Date : 2024-01-06 Charlie J. Patrickson, Simon Baber, Blanka B. Gaál, Andrew J. Ramsay, Isaac J. Luxmoore
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Cross-platform comparison of arbitrary quantum processes npj Quantum Inform. (IF 7.6) Pub Date : 2024-01-03 Congcong Zheng, Xutao Yu, Kun Wang
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Probabilistic state synthesis based on optimal convex approximation npj Quantum Inform. (IF 7.6) Pub Date : 2024-01-03 Seiseki Akibue, Go Kato, Seiichiro Tani
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Quantum key distribution using deterministic single-photon sources over a field-installed fibre link npj Quantum Inform. (IF 7.6) Pub Date : 2024-01-02 Mujtaba Zahidy, Mikkel T. Mikkelsen, Ronny Müller, Beatrice Da Lio, Martin Krehbiel, Ying Wang, Nikolai Bart, Andreas D. Wieck, Arne Ludwig, Michael Galili, Søren Forchhammer, Peter Lodahl, Leif K. Oxenløwe, Davide Bacco, Leonardo Midolo
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Quantifying quantum coherence of multiple-charge states in tunable Josephson junctions npj Quantum Inform. (IF 7.6) Pub Date : 2024-01-02 Jiangbo He, Dong Pan, Mingli Liu, Zhaozheng Lyu, Zhongmou Jia, Guang Yang, Shang Zhu, Guangtong Liu, Jie Shen, Sergey N. Shevchenko, Franco Nori, Jianhua Zhao, Li Lu, Fanming Qu
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Compact description of quantum phase slip junctions npj Quantum Inform. (IF 7.6) Pub Date : 2023-12-19 Christina Koliofoti, Roman-Pascal Riwar
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Approximating outcome probabilities of linear optical circuits npj Quantum Inform. (IF 7.6) Pub Date : 2023-12-16 Youngrong Lim, Changhun Oh
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Resource-efficient fault-tolerant one-way quantum repeater with code concatenation npj Quantum Inform. (IF 7.6) Pub Date : 2023-12-12 Kah Jen Wo, Guus Avis, Filip Rozpędek, Maria Flors Mor-Ruiz, Gregor Pieplow, Tim Schröder, Liang Jiang, Anders S. Sørensen, Johannes Borregaard
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Error-mitigated quantum simulation of interacting fermions with trapped ions npj Quantum Inform. (IF 7.6) Pub Date : 2023-12-07 Wentao Chen, Shuaining Zhang, Jialiang Zhang, Xiaolu Su, Yao Lu, Kuan Zhang, Mu Qiao, Ying Li, Jing-Ning Zhang, Kihwan Kim
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Alignment between initial state and mixer improves QAOA performance for constrained optimization npj Quantum Inform. (IF 7.6) Pub Date : 2023-11-27 Zichang He, Ruslan Shaydulin, Shouvanik Chakrabarti, Dylan Herman, Changhao Li, Yue Sun, Marco Pistoia
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Adaptive quantum error mitigation using pulse-based inverse evolutions npj Quantum Inform. (IF 7.6) Pub Date : 2023-11-22 Ivan Henao, Jader P. Santos, Raam Uzdin
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Approximate symmetries and quantum error correction npj Quantum Inform. (IF 7.6) Pub Date : 2023-11-21 Zi-Wen Liu, Sisi Zhou
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Realization of a quantum neural network using repeat-until-success circuits in a superconducting quantum processor npj Quantum Inform. (IF 7.6) Pub Date : 2023-11-21 M. S. Moreira, G. G. Guerreschi, W. Vlothuizen, J. F. Marques, J. van Straten, S. P. Premaratne, X. Zou, H. Ali, N. Muthusubramanian, C. Zachariadis, J. van Someren, M. Beekman, N. Haider, A. Bruno, C. G. Almudever, A. Y. Matsuura, L. DiCarlo
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No graph state is preparable in quantum networks with bipartite sources and no classical communication npj Quantum Inform. (IF 7.6) Pub Date : 2023-11-18 Owidiusz Makuta, Laurens T. Ligthart, Remigiusz Augusiak
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Quasiperiodic circuit quantum electrodynamics npj Quantum Inform. (IF 7.6) Pub Date : 2023-11-14 T. Herrig, J. H. Pixley, E. J. König, R.-P. Riwar
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Robust and efficient verification of graph states in blind measurement-based quantum computation npj Quantum Inform. (IF 7.6) Pub Date : 2023-11-14 Zihao Li, Huangjun Zhu, Masahito Hayashi
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Resolving Fock states near the Kerr-free point of a superconducting resonator npj Quantum Inform. (IF 7.6) Pub Date : 2023-11-10 Yong Lu, Marina Kudra, Timo Hillmann, Jiaying Yang, Hang-Xi Li, Fernando Quijandría, Per Delsing
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Multi-state quantum simulations via model-space quantum imaginary time evolution npj Quantum Inform. (IF 7.6) Pub Date : 2023-11-07 Takashi Tsuchimochi, Yoohee Ryo, Siu Chung Tsang, Seiichiro L. Ten-no
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Error per single-qubit gate below 10−4 in a superconducting qubit npj Quantum Inform. (IF 7.6) Pub Date : 2023-11-03 Zhiyuan Li, Pei Liu, Peng Zhao, Zhenyu Mi, Huikai Xu, Xuehui Liang, Tang Su, Weijie Sun, Guangming Xue, Jing-Ning Zhang, Weiyang Liu, Yirong Jin, Haifeng Yu
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Exhaustive search for optimal molecular geometries using imaginary-time evolution on a quantum computer npj Quantum Inform. (IF 7.6) Pub Date : 2023-11-03 Taichi Kosugi, Hirofumi Nishi, Yu-ichiro Matsushita
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Dopant-assisted stabilization of negatively charged single nitrogen-vacancy centers in phosphorus-doped diamond at low temperatures npj Quantum Inform. (IF 7.6) Pub Date : 2023-10-27 Jianpei Geng, Tetyana Shalomayeva, Mariia Gryzlova, Amlan Mukherjee, Santo Santonocito, Dzhavid Dzhavadzade, Durga Bhaktavatsala Rao Dasari, Hiromitsu Kato, Rainer Stöhr, Andrej Denisenko, Norikazu Mizuochi, Jörg Wrachtrup
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Benchmarking quantum logic operations relative to thresholds for fault tolerance npj Quantum Inform. (IF 7.6) Pub Date : 2023-10-26 Akel Hashim, Stefan Seritan, Timothy Proctor, Kenneth Rudinger, Noah Goss, Ravi K. Naik, John Mark Kreikebaum, David I. Santiago, Irfan Siddiqi
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Quantum logic gate synthesis as a Markov decision process npj Quantum Inform. (IF 7.6) Pub Date : 2023-10-25 M. Sohaib Alam, Noah F. Berthusen, Peter P. Orth
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Electrical manipulation of a single electron spin in CMOS using a micromagnet and spin-valley coupling npj Quantum Inform. (IF 7.6) Pub Date : 2023-10-23 Bernhard Klemt, Victor Elhomsy, Martin Nurizzo, Pierre Hamonic, Biel Martinez, Bruna Cardoso Paz, Cameron Spence, Matthieu C. Dartiailh, Baptiste Jadot, Emmanuel Chanrion, Vivien Thiney, Renan Lethiecq, Benoit Bertrand, Heimanu Niebojewski, Christopher Bäuerle, Maud Vinet, Yann-Michel Niquet, Tristan Meunier, Matias Urdampilleta
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All-photonic one-way quantum repeaters with measurement-based error correction npj Quantum Inform. (IF 7.6) Pub Date : 2023-10-21 Daoheng Niu, Yuxuan Zhang, Alireza Shabani, Hassan Shapourian