OOIR: Observatory of International Research

Papers

(The TQCC of npj Quantum Information is 19. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2020-11-01 to 2024-11-01.)

Article	Citations
Towards practical quantum computers: transmon qubit with a lifetime approaching 0.5 milliseconds	173
Efficient and noise resilient measurements for quantum chemistry on near-term quantum computers	138
Laser-annealing Josephson junctions for yielding scaled-up superconducting quantum processors	103
Symmetry-resolved entanglement detection using partial transpose moments	102
Emergence and control of complex behaviors in driven systems of interacting qubits with dissipation	101
Leakage reduction in fast superconducting qubit gates via optimal control	98
Iterative quantum amplitude estimation	94
Resource-efficient quantum algorithm for protein folding	87
Full daylight quantum-key-distribution at 1550 nm enabled by integrated silicon photonics	76
Feasibility of satellite-to-ground continuous-variable quantum key distribution	73
Identifying optimal cycles in quantum thermal machines with reinforcement-learning	71
Parallel quantum simulation of large systems on small NISQ computers	66
Low rank representations for quantum simulation of electronic structure	66
Saving superconducting quantum processors from decay and correlated errors generated by gamma and cosmic rays	66
Experimental authentication of quantum key distribution with post-quantum cryptography	65
Entanglement across separate silicon dies in a modular superconducting qubit device	62
Fundamental limits of quantum error mitigation	61
Nearest centroid classification on a trapped ion quantum computer	60
Proposal for space-borne quantum memories for global quantum networking	60
Machine learning of high dimensional data on a noisy quantum processor	59
Storage of photonic time-bin qubits for up to 20 ms in a rare-earth doped crystal	56
Implementation of a 46-node quantum metropolitan area network	56
Quantum circuit architecture search for variational quantum algorithms	55
Effective routing design for remote entanglement generation on quantum networks	55
Optimal operation points for ultrafast, highly coherent Ge hole spin-orbit qubits	54

A variational toolbox for quantum multi-parameter estimation	52
High-performance quantum entanglement generation via cascaded second-order nonlinear processes	50
Flexible entanglement-distribution network with an AlGaAs chip for secure communications	48
Gigahertz measurement-device-independent quantum key distribution using directly modulated lasers	47
High fidelity two-qubit gates on fluxoniums using a tunable coupler	47
Dynamics of superconducting qubit relaxation times	46
Energy-participation quantization of Josephson circuits	46
Spooky action at a global distance: analysis of space-based entanglement distribution for the quantum internet	46
Conveyor-mode single-electron shuttling in Si/SiGe for a scalable quantum computing architecture	46
Gate-free state preparation for fast variational quantum eigensolver simulations	45
Multi-exponential error extrapolation and combining error mitigation techniques for NISQ applications	45
Classical variational simulation of the Quantum Approximate Optimization Algorithm	45
Imaging and certifying high-dimensional entanglement with a single-photon avalanche diode camera	44
Experimental test of non-macrorealistic cat states in the cloud	41
Enhancing quantum cryptography with quantum dot single-photon sources	40
Variational quantum state eigensolver	40
Implementation of quantum imaginary-time evolution method on NISQ devices by introducing nonlocal approximation	39
Hamiltonian simulation in the low-energy subspace	37
Variational quantum eigensolver with reduced circuit complexity	37
Strategies for achieving high key rates in satellite-based QKD	36
Adaptive quantum state tomography with neural networks	36
Tight finite-key security for twin-field quantum key distribution	35
Machine learning aided carrier recovery in continuous-variable quantum key distribution	35
Quantum repeaters based on concatenated bosonic and discrete-variable quantum codes	35
Sudden death and revival of Gaussian Einstein–Podolsky–Rosen steering in noisy channels	34
Finite key effects in satellite quantum key distribution	34
Experimental adaptive Bayesian estimation of multiple phases with limited data	33
Advances in device-independent quantum key distribution	33
Critical parametric quantum sensing	33
A quantum router architecture for high-fidelity entanglement flows in quantum networks	33
648 Hilbert-space dimensionality in a biphoton frequency comb: entanglement of formation and Schmidt mode decomposition	33
Proof-of-principle experimental demonstration of twin-field quantum key distribution over optical channels with asymmetric losses	33
Detector-integrated on-chip QKD receiver for GHz clock rates	33
Path-encoded high-dimensional quantum communication over a 2-km multicore fiber	32
Experimental demonstration of entanglement delivery using a quantum network stack	31
Quantum teleportation with imperfect quantum dots	31
Experimental quantum kernel trick with nuclear spins in a solid	31
Quantum transport and localization in 1d and 2d tight-binding lattices	30
Deterministic improvements of quantum measurements with grouping of compatible operators, non-local transformations, and covariance estimates	30
Experimental characterization of the energetics of quantum logic gates	30
Overcoming detection loss and noise in squeezing-based optical sensing	29
Parameter estimation in quantum sensing based on deep reinforcement learning	29
Orbital-optimized pair-correlated electron simulations on trapped-ion quantum computers	29
Quantum random number cloud platform	29
Efficient computation of the Nagaoka–Hayashi bound for multiparameter estimation with separable measurements	29
Genuine quantum networks with superposed tasks and addressing	29
Self-testing quantum systems of arbitrary local dimension with minimal number of measurements	28
Observation of Bloch oscillations and Wannier-Stark localization on a superconducting quantum processor	28
Global correlation and local information flows in controllable non-Markovian open quantum dynamics	27
Robust quantum-network memory based on spin qubits in isotopically engineered diamond	27

Theoretical error performance analysis for variational quantum circuit based functional regression	27
Coherent manipulation and quantum phase interference in a fullerene-based electron triplet molecular qutrit	27
Quantum circuit cutting with maximum-likelihood tomography	27
Quantum communication with itinerant surface acoustic wave phonons	27
Continuous-mode quantum key distribution with digital signal processing	27
Towards a microwave single-photon counter for searching axions	27
Quantum Hall phases emerging from atom–photon interactions	27
Computing secure key rates for quantum cryptography with untrusted devices	27
Adaptive, problem-tailored variational quantum eigensolver mitigates rough parameter landscapes and barren plateaus	27
High-accuracy Ising machine using Kerr-nonlinear parametric oscillators with local four-body interactions	26
Measuring magic on a quantum processor	26
A phononic interface between a superconducting quantum processor and quantum networked spin memories	26
Coherence of a charge stabilised tin-vacancy spin in diamond	26
Optimal teleportation via noisy quantum channels without additional qubit resources	26
Quantum Fisher information measurement and verification of the quantum Cramér–Rao bound in a solid-state qubit	26
Quasiprobability decompositions with reduced sampling overhead	26
Leakage detection for a transmon-based surface code	26
Free electrons can induce entanglement between photons	25
Transmon qubit readout fidelity at the threshold for quantum error correction without a quantum-limited amplifier	25
Two-dimensional centrosymmetrical antiferromagnets for spin photogalvanic devices	25
Analyzing the performance of variational quantum factoring on a superconducting quantum processor	25
Measurement-free preparation of grid states	25
Entropy production in continuously measured Gaussian quantum systems	25
Deterministic spin-photon entanglement from a trapped ion in a fiber Fabry–Perot cavity	25
3D integration and measurement of a semiconductor double quantum dot with a high-impedance TiN resonator	25
Counteracting dephasing in Molecular Nanomagnets by optimized qudit encodings	24
Equivariant quantum circuits for learning on weighted graphs	24
Beyond the standard quantum limit for parametric amplification of broadband signals	23
A quantum algorithm for string matching	23
Optimal control of stimulated Raman adiabatic passage in a superconducting qudit	23
Counterfactual ghost imaging	23
A machine learning approach to Bayesian parameter estimation	23
Bound state in a giant atom-modulated resonators system	23
Long-time simulations for fixed input states on quantum hardware	23
Circuit quantization with time-dependent magnetic fields for realistic geometries	23
A Bayesian analysis of classical shadows	22
Efficient quantum state tomography with convolutional neural networks	22
Cooperative-effect-induced one-way steering in open cavity magnonics	22
Characterizing decoherence rates of a superconducting qubit by direct microwave scattering	22
Quantum electromechanics with levitated nanoparticles	22
Temporal distinguishability in Hong-Ou-Mandel interference for harnessing high-dimensional frequency entanglement	22
Deep reinforcement learning for efficient measurement of quantum devices	22
Characterization and control of open quantum systems beyond quantum noise spectroscopy	22
Simulating the fabrication of aluminium oxide tunnel junctions	21
Universal and operational benchmarking of quantum memories	21
Path toward manufacturable superconducting qubits with relaxation times exceeding 0.1 ms	21
Experimental unsupervised learning of non-Hermitian knotted phases with solid-state spins	21
Designing quantum networks using preexisting infrastructure	21
Time-series quantum reservoir computing with weak and projective measurements	21
Experimental critical quantum metrology with the Heisenberg scaling	21
Quantum Fourier transform for nanoscale quantum sensing	21
Space-efficient binary optimization for variational quantum computing	20
Intensity modulator for secure, stable, and high-performance decoy-state quantum key distribution	20
Quantum Zeno effects across a parity-time symmetry breaking transition in atomic momentum space	20
Quantum frequency conversion and single-photon detection with lithium niobate nanophotonic chips	20
Fundamental limits of electron and nuclear spin qubit lifetimes in an isolated self-assembled quantum dot	20
Practical distributed quantum information processing with LOCCNet	20
Demonstration of universal control between non-interacting qubits using the Quantum Zeno effect	20
Reconfigurable continuously-coupled 3D photonic circuit for Boson Sampling experiments	19
Variational quantum algorithm with information sharing	19
Quantum sensors for microscopic tunneling systems	19
Quantum walks of two correlated photons in a 2D synthetic lattice	19
Phase flip code with semiconductor spin qubits	19
Quantum generative adversarial networks with multiple superconducting qubits	19
Observation of critical phase transition in a generalized Aubry-André-Harper model with superconducting circuits	19
Automated design of superconducting circuits and its application to 4-local couplers	19
Experimental quantum homomorphic encryption	19
Nanoscale electric field imaging with an ambient scanning quantum sensor microscope	19
Creation of Greenberger-Horne-Zeilinger states with thousands of atoms by entanglement amplification	19