OOIR: Observatory of International Research

Papers

(The TQCC of npj Quantum Information is 18. 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 2021-05-01 to 2025-05-01.)

Article	Citations
Optimal measurement structures for contextuality applications	239
Universal and operational benchmarking of quantum memories	125
Exhaustive search for optimal molecular geometries using imaginary-time evolution on a quantum computer	120
Maximal steady-state entanglement in autonomous quantum thermal machines	102
Group-theoretic error mitigation enabled by classical shadows and symmetries	88
Author Correction: Dephasing enabled fast charging of quantum batteries	84
Semi-device-independent quantum random number generator with a broadband squeezed state of light	82
Non-linear Boson Sampling	82
6-qubit optimal Clifford circuits	80
Quantum computational phase transition in combinatorial problems	78
Contextual subspace variational quantum eigensolver calculation of the dissociation curve of molecular nitrogen on a superconducting quantum computer	78
Towards practical and massively parallel quantum computing emulation for quantum chemistry	78
Interferometry of quantum correlation functions to access quasiprobability distribution of work	77
Quasiprobability decompositions with reduced sampling overhead	76
Quantum-inspired machine learning on high-energy physics data	75
Controlled-phase gate by dynamic coupling of photons to a two-level emitter	73
Large-scale simulations of Floquet physics on near-term quantum computers	69
TR12 centers in diamond as a room temperature atomic scale vector magnetometer	68
Extensive characterization and implementation of a family of three-qubit gates at the coherence limit	68
Optically induced nuclear spin–spin couplings in GaAs manifested by spin echo decays under optical pumping	65
A mid-circuit erasure check on a dual-rail cavity qubit using the joint-photon number-splitting regime of circuit QED	61
Modulation leakage-free continuous-variable quantum key distribution	61
Hole-type superconducting gatemon qubit based on Ge/Si core/shell nanowires	61
Symmetry-resolved entanglement detection using partial transpose moments	59
Modeling Si/SiGe quantum dot variability induced by interface disorder reconstructed from multiperspective microscopy	58

Protocol for certifying entanglement in surface spin systems using a scanning tunneling microscope	57
Constraints on magic state protocols from the statistical mechanics of Wigner negativity	57
Heisenberg-limited Hamiltonian learning for interacting bosons	56
Energy and bandwidth efficiency optimization of quantum-enabled optical communication channels	54
Quantum emulation of topological magneto-optical effects using ultracold atoms	49
Publisher Correction: Equivalence checking of quantum circuits by nonlocality	49
Author Correction: Decoherence of nitrogen-vacancy spin ensembles in a nitrogen electron-nuclear spin bath in diamond	48
Nanomechanical cat states generated by a dc voltage-driven Cooper pair box qubit	46
Long-time simulations for fixed input states on quantum hardware	45
Verifying the security of a continuous variable quantum communication protocol via quantum metrology	45
Evidence of Kardar-Parisi-Zhang scaling on a digital quantum simulator	44
Time-optimal control of a solid-state spin amidst dynamical quantum wind	44
Hamiltonian phase error in resonantly driven CNOT gate above the fault-tolerant threshold	43
Long optical and electron spin coherence times for erbium ions in silicon	43
The laws of physics do not prohibit counterfactual communication	42
Quantum causal unravelling	41
Boosted quantum teleportation	41
CNOT circuits need little help to implement arbitrary Hadamard-free Clifford transformations they generate	41
High-performance quantum entanglement generation via cascaded second-order nonlinear processes	41
Probing two-qubit capacitive interactions beyond bilinear regime using dual Hamiltonian parameter estimations	41
Check-probe spectroscopy of lifetime-limited emitters in bulk-grown silicon carbide	41
Wilson loop and Wilczek-Zee phase from a non-Abelian gauge field	40
Beyond the standard quantum limit for parametric amplification of broadband signals	40
Quantum Zeno Monte Carlo for computing observables	40
Calibrating quantum gates up to 52 qubits in a superconducting processor	39
Surpassing the repeaterless bound with a photon-number encoded measurement-device-independent quantum key distribution protocol	39
High-fidelity four-photon GHZ states on chip	38
Experimental unsupervised learning of non-Hermitian knotted phases with solid-state spins	38
Hamiltonian dynamics on digital quantum computers without discretization error	38
Qubit teleportation between a memory-compatible photonic time-bin qubit and a solid-state quantum network node	37
Steering nonlocality in high-speed telecommunication system without detection loophole	37
Dynamics of superconducting qubit relaxation times	37
Free electrons can induce entanglement between photons	37
Entanglement-assisted capacity regions and protocol designs for quantum multiple-access channels	36
Calibration-independent bound on the unitarity of a quantum channel with application to a frequency converter	36
Nonclassicality detection from few Fock-state probabilities	36
High frequency magnetometry with an ensemble of spin qubits in hexagonal boron nitride	36
Quantum LOSR networks cannot generate graph states with high fidelity	36
Simultaneous discovery of quantum error correction codes and encoders with a noise-aware reinforcement learning agent	35
Unleashed from constrained optimization: quantum computing for quantum chemistry employing generator coordinate inspired method	35
Determination of the asymptotic limits of adaptive photon counting measurements for coherent-state optical phase estimation	34
Variational preparation of finite-temperature states on a quantum computer	34
Detecting positive quantum capacities of quantum channels	34
Dephasing enabled fast charging of quantum batteries	33
Parameterized quantum comb and simpler circuits for reversing unknown qubit-unitary operations	33
Overcoming detection loss and noise in squeezing-based optical sensing	32
Nearest centroid classification on a trapped ion quantum computer	32
Intelligent certification for quantum simulators via machine learning	32
Path toward manufacturable superconducting qubits with relaxation times exceeding 0.1 ms	32
Quantum-enhanced analysis of discrete stochastic processes	32

Fidelity bounds for device-independent advantage distillation	31
Quantum-enhanced Doppler lidar	31
Atom-level electronic physicists are needed to develop practical engines with a quantum advantage	31
Noise-robust classification of single-shot electron spin readouts using a deep neural network	31
Full monitoring of ensemble trajectories with 10 dB-sub-Heisenberg imprecision	31
Equivalence checking of quantum circuits by nonlocality	30
Time-varying quantum channel models for superconducting qubits	30
Unified linear response theory of quantum electronic circuits	30
Spectroscopic characterization of the quantum linear-zigzag transition in trapped ions	30
Remote cooling of spin-ensembles through a spin-mechanical hybrid interface	29
Laser-annealing Josephson junctions for yielding scaled-up superconducting quantum processors	29
Coupling conduction-band valleys in SiGe heterostructures via shear strain and Ge concentration oscillations	29
Effect of partial distinguishability on quantum supremacy in Gaussian Boson sampling	28
Quantum speed limit for complex dynamics	28
Dimension reduction in quantum sampling of stochastic processes	27
High-fidelity spin readout via the double latching mechanism	27
Gate-set evaluation metrics for closed-loop optimal control on nitrogen-vacancy center ensembles in diamond	27
Sampling frequency thresholds for the quantum advantage of the quantum approximate optimization algorithm	27
Data needs and challenges for quantum dot devices automation	27
Parallel quantum simulation of large systems on small NISQ computers	27
Less entanglement exhibiting more nonlocality with noisy measurements	27
Lightcone bounds for quantum circuit mapping via uncomplexity	27
Spatially correlated classical and quantum noise in driven qubits	26
On-chip parallel processing of quantum frequency comb	26
Variational quantum state eigensolver	26
Error measurements for a quantum annealer using the one-dimensional Ising model with twisted boundaries	26
Theoretical guarantees for permutation-equivariant quantum neural networks	26
Scalable and robust quantum computing on qubit arrays with fixed coupling	26
Experimental signature of initial quantum coherence on entropy production	25
A quantum dot crossbar with sublinear scaling of interconnects at cryogenic temperature	25
Boundaries of quantum supremacy via random circuit sampling	25
Closed-loop optimization of fast trapped-ion shuttling with sub-quanta excitation	25
Storage of photonic time-bin qubits for up to 20 ms in a rare-earth doped crystal	25
Entangling entanglement: coupling frequency and polarization of biphotons on demand	25
Quantum autoencoders using mixed reference states	25
Detection of molecular transitions with nitrogen-vacancy centers and electron-spin labels	24
Fundamental quantum limits of magnetic nearfield measurements	24
Optimal teleportation via noisy quantum channels without additional qubit resources	23
Charge-parity switching effects and optimisation of transmon-qubit design parameters	23
Observation of large spontaneous emission rate enhancement of quantum dots in a broken-symmetry slow-light waveguide	23
An elegant scheme of self-testing for multipartite Bell inequalities	23
Reconfigurable quantum phononic circuits via piezo-acoustomechanical interactions	22
Compilation and scaling strategies for a silicon quantum processor with sparse two-dimensional connectivity	22
Inverted fine structure of a 6H-SiC qubit enabling robust spin-photon interface	22
Towards a spectrally multiplexed quantum repeater	22
All-optical nuclear quantum sensing using nitrogen-vacancy centers in diamond	22
Strong majorization uncertainty relations and experimental verifications	22
Advances in device-independent quantum key distribution	22
Stabilizing multiple topological fermions on a quantum computer	22
Self-testing of a single quantum system from theory to experiment	21
Controlling the photon number coherence of solid-state quantum light sources for quantum cryptography	21
Surpassing spectator qubits with photonic modes and continuous measurement for Heisenberg-limited noise mitigation	21
Entanglement transitivity problems	21
Fundamental causal bounds of quantum random access memories	21
Experimental demonstration of entanglement delivery using a quantum network stack	21
Detecting and quantifying entanglement on near-term quantum devices	20
Experimental critical quantum metrology with the Heisenberg scaling	20
Estimating the randomness of quantum circuit ensembles up to 50 qubits	20
Experimental study of quantum coherence decomposition and trade-off relations in a tripartite system	20
A variational toolbox for quantum multi-parameter estimation	20
Peptide conformational sampling using the Quantum Approximate Optimization Algorithm	20
Networking quantum networks with minimum cost aggregation	20
First-order phase transition of the Schwinger model with a quantum computer	19
Quantum causal inference with extremely light touch	19
Microwave mode cooling and cavity quantum electrodynamics effects at room temperature with optically cooled nitrogen-vacancy center spins	19
Integrating quantum processor device and control optimization in a gradient-based framework	19
Towards practical quantum computers: transmon qubit with a lifetime approaching 0.5 milliseconds	19
Distillation of Gaussian Einstein-Podolsky-Rosen steering with noiseless linear amplification	19
Scalable determination of multipartite entanglement in quantum networks	18
Publisher Correction: The laws of physics do not prohibit counterfactual communication	18
Author Correction: Lightcone bounds for quantum circuit mapping via uncomplexity	18
Robust and efficient verification of graph states in blind measurement-based quantum computation	18
Simulating photosynthetic energy transport on a photonic network	18
Dynamic synthesis of Heisenberg-limited spin squeezing	18
Photonic resource state generation from a minimal number of quantum emitters	18
Pseudo twirling mitigation of coherent errors in non-Clifford gates	18
Experimental demonstration of multiparty quantum secret sharing and conference key agreement	18