OOIR: Observatory of International Research

Papers

(The TQCC of npj Quantum Information is 17. 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 2021-04-01 to 2025-04-01.)

Article	Citations
Dimension reduction in quantum sampling of stochastic processes	230
High-fidelity trapped-ion qubit operations with scalable photonic modulators	123
Quantum state preparation of normal distributions using matrix product states	120
Variational quantum state eigensolver	100
Theoretical guarantees for permutation-equivariant quantum neural networks	84
A hybrid framework for estimating nonlinear functions of quantum states	84
Experimental signature of initial quantum coherence on entropy production	80
Fault-tolerant connection of error-corrected qubits with noisy links	80
Quantum computational phase transition in combinatorial problems	79
Efficient methods for one-shot quantum communication	78
Scalable temporal multiplexing of telecom photons via thin-film lithium niobate photonics	77
Exhaustive search for optimal molecular geometries using imaginary-time evolution on a quantum computer	75
Temporal distinguishability in Hong-Ou-Mandel interference for harnessing high-dimensional frequency entanglement	73
Circuit quantization with time-dependent magnetic fields for realistic geometries	73
Maximal steady-state entanglement in autonomous quantum thermal machines	68
Contextual subspace variational quantum eigensolver calculation of the dissociation curve of molecular nitrogen on a superconducting quantum computer	67
Optimal measurement structures for contextuality applications	66
Realization of quantum signal processing on a noisy quantum computer	64
Requirements for a processing-node quantum repeater on a real-world fiber grid	63
Quantum speed limit for complex dynamics	63
Fourier Quantum Process Tomography	59
Revealing inherent quantum interference and entanglement of a Dirac particle	57
Author Correction: Contextuality in infinite one-dimensional translation-invariant local Hamiltonians	56
Compact description of quantum phase slip junctions	56
Data needs and challenges for quantum dot devices automation	55

Gate-set evaluation metrics for closed-loop optimal control on nitrogen-vacancy center ensembles in diamond	55
Coherence of a field gradient driven singlet-triplet qubit coupled to multielectron spin states in 28Si/SiGe	55
Many-body entanglement via ‘which-path’ information	54
Approximate encoding of quantum states using shallow circuits	54
Experimental error suppression in Cross-Resonance gates via multi-derivative pulse shaping	53
Spatially correlated classical and quantum noise in driven qubits	53
Robust projective measurements through measuring code-inspired observables	48
High-fidelity spin readout via the double latching mechanism	46
Beating one bit of communication with and without quantum pseudo-telepathy	45
Interferometry of quantum correlation functions to access quasiprobability distribution of work	44
Sudden death and revival of Gaussian Einstein–Podolsky–Rosen steering in noisy channels	44
Quantum Zeno effects across a parity-time symmetry breaking transition in atomic momentum space	43
Universal and operational benchmarking of quantum memories	42
Demonstrating the power of quantum computers, certification of highly entangled measurements and scalable quantum nonlocality	42
Reprogrammable and high-precision holographic optical addressing of trapped ions for scalable quantum control	42
Author Correction: Two-qubit sweet spots for capacitively coupled exchange-only spin qubits	41
Robust preparation of many-body ground states in Jaynes–Cummings lattices	41
Optimal control of stimulated Raman adiabatic passage in a superconducting qudit	41
Effects of surface treatments on flux tunable transmon qubits	41
Quantum random number cloud platform	41
Lightcone bounds for quantum circuit mapping via uncomplexity	40
Error suppression in adiabatic quantum computing with qubit ensembles	40
Certification of quantum states with hidden structure of their bitstrings	39
Designing quantum networks using preexisting infrastructure	39
Quantum efficiency, purity and stability of a tunable, narrowband microwave single-photon source	39
Quantum coherence bounds the distributed discords	38
Error measurements for a quantum annealer using the one-dimensional Ising model with twisted boundaries	38
Less entanglement exhibiting more nonlocality with noisy measurements	38
Stochastic gradient line Bayesian optimization for efficient noise-robust optimization of parameterized quantum circuits	38
Sign-problem free quantum stochastic series expansion algorithm on a quantum computer	38
Achieving the ultimate end-to-end rates of lossy quantum communication networks	37
6-qubit optimal Clifford circuits	37
Demonstration of universal control between non-interacting qubits using the Quantum Zeno effect	37
Tailored cluster states with high threshold under biased noise	36
Slowing quantum decoherence of oscillators by hybrid processing	36
Many-body localization in the infinite-interaction limit and the discontinuous eigenstate phase transition	36
Multidimensional Bose quantum error correction based on neural network decoder	36
Parity-encoding-based quantum computing with Bayesian error tracking	35
Non-linear Boson Sampling	35
Coherent memory for microwave photons based on long-lived mechanical excitations	34
Quantum emulation of the transient dynamics in the multistate Landau-Zener model	34
Author Correction: Dephasing enabled fast charging of quantum batteries	33
Counterfactual communication without a trace in the transmission channel	33
Multipartite entanglement of billions of motional atoms heralded by single photon	33
Author Correction: Error suppression in adiabatic quantum computing with qubit ensembles	33
On-chip parallel processing of quantum frequency comb	32
Semi-device-independent quantum random number generator with a broadband squeezed state of light	32
Variational quantum eigensolver with reduced circuit complexity	32
Low-rank density-matrix evolution for noisy quantum circuits	32
Experimental metrology beyond the standard quantum limit for a wide resources range	30

Entanglement-based quantum communication complexity beyond Bell nonlocality	30
Simultaneous measurement of multiple incompatible observables and tradeoff in multiparameter quantum estimation	30
Adaptive, problem-tailored variational quantum eigensolver mitigates rough parameter landscapes and barren plateaus	30
A machine learning approach to Bayesian parameter estimation	30
Boundaries of quantum supremacy via random circuit sampling	30
Measuring magic on a quantum processor	30
Group-theoretic error mitigation enabled by classical shadows and symmetries	29
Exploiting degeneracy in belief propagation decoding of quantum codes	29
Fabrication and characterization of low-loss Al/Si/Al parallel plate capacitors for superconducting quantum information applications	28
Exact electronic states with shallow quantum circuits from global optimisation	28
Parallel quantum simulation of large systems on small NISQ computers	28
Quasiprobability decompositions with reduced sampling overhead	28
Quantum Fourier transform for nanoscale quantum sensing	28
Storage of photonic time-bin qubits for up to 20 ms in a rare-earth doped crystal	28
Scalable and robust quantum computing on qubit arrays with fixed coupling	28
A chiral one-dimensional atom using a quantum dot in an open microcavity	28
Towards practical and massively parallel quantum computing emulation for quantum chemistry	27
Continuous-mode quantum key distribution with digital signal processing	27
Error per single-qubit gate below 10−4 in a superconducting qubit	26
Long-range data transmission in a fault-tolerant quantum bus architecture	26
Sampling frequency thresholds for the quantum advantage of the quantum approximate optimization algorithm	26
Classical variational simulation of the Quantum Approximate Optimization Algorithm	26
Quantum computation of reactions on surfaces using local embedding	26
Digital-analog quantum computing of fermion-boson models in superconducting circuits	26
Fast spin-valley-based quantum gates in Si with micromagnets	25
Saving superconducting quantum processors from decay and correlated errors generated by gamma and cosmic rays	25
Towards a spectrally multiplexed quantum repeater	25
Extensive characterization and implementation of a family of three-qubit gates at the coherence limit	25
Phase-locking matter-wave interferometer of vortex states	25
A mid-circuit erasure check on a dual-rail cavity qubit using the joint-photon number-splitting regime of circuit QED	25
Mapping of valley splitting by conveyor-mode spin-coherent electron shuttling	25
Quantum enhanced measurement of an optical frequency comb	24
How to build Hamiltonians that transport noncommuting charges in quantum thermodynamics	24
Reconfigurable quantum phononic circuits via piezo-acoustomechanical interactions	24
3D integration and measurement of a semiconductor double quantum dot with a high-impedance TiN resonator	24
State-independent test of quantum contextuality with either single photons or coherent light	24
Quantum steering with vector vortex photon states with the detection loophole closed	23
Quantum walks of two correlated photons in a 2D synthetic lattice	23
Closed-loop optimization of fast trapped-ion shuttling with sub-quanta excitation	23
Autonomous quantum error correction in a four-photon Kerr parametric oscillator	23
A quantum dot crossbar with sublinear scaling of interconnects at cryogenic temperature	22
Free-running long-distance reference-frame-independent quantum key distribution	22
Universal interference-based construction of Gaussian operations in hybrid quantum systems	22
Controlled-phase gate by dynamic coupling of photons to a two-level emitter	22
Topological nonlinear optics with spin-orbit coupled Bose-Einstein condensate in cavity	22
Optically induced nuclear spin–spin couplings in GaAs manifested by spin echo decays under optical pumping	22
Fundamental quantum limits of magnetic nearfield measurements	21
Spectral kissing and its dynamical consequences in the squeeze-driven Kerr oscillator	21
Quantum optimization within lattice gauge theory model on a quantum simulator	21
Experimental simulation of loop quantum gravity on a photonic chip	21
An elegant scheme of self-testing for multipartite Bell inequalities	21
Detection of molecular transitions with nitrogen-vacancy centers and electron-spin labels	21
Compilation and scaling strategies for a silicon quantum processor with sparse two-dimensional connectivity	21
Probing resonating valence bonds on a programmable germanium quantum simulator	21
Contextuality in infinite one-dimensional translation-invariant local Hamiltonians	20
Cyclic cooling of quantum systems at the saturation limit	20
An architecture for two-qubit encoding in neutral ytterbium-171 atoms	20
Experimental test of the Greenberger–Horne–Zeilinger-type paradoxes in and beyond graph states	20
Optimal provable robustness of quantum classification via quantum hypothesis testing	20
Long-range QKD without trusted nodes is not possible with current technology	20
Tight finite-key analysis for quantum key distribution without monitoring signal disturbance	20
Large-scale simulations of Floquet physics on near-term quantum computers	19
A quantum leaky integrate-and-fire spiking neuron and network	19
Quantum computing quantum Monte Carlo with hybrid tensor network for electronic structure calculations	19
Tight Lieb–Robinson Bound for approximation ratio in quantum annealing	19
Can quantum computers do nothing?	19
The silicon vacancy centers in SiC: determination of intrinsic spin dynamics for integrated quantum photonics	18
Scaling whole-chip QAOA for higher-order ising spin glass models on heavy-hex graphs	18
Entangling entanglement: coupling frequency and polarization of biphotons on demand	18
Quantum autoencoders using mixed reference states	18
Valid and efficient entanglement verification with finite copies of a quantum state	18
Characterizing coherent errors using matrix-element amplification	18
Quantum error mitigation in quantum annealing	17
All-optical nuclear quantum sensing using nitrogen-vacancy centers in diamond	17
Spectral analysis of product formulas for quantum simulation	17
Quantum Fredkin and Toffoli gates on a versatile programmable silicon photonic chip	17
Gate-free state preparation for fast variational quantum eigensolver simulations	17
Randomized semi-quantum matrix processing	17