Sperling, J., &; Vogel, W. (2009). Verifying continuous-variable entanglement in finite spaces. Physical Review A.https://doi.org/10.1103/physreva.79.052313 

Sperling, J., &; Vogel, W. (2009). Representation of entanglement by negative quasiprobabilities. Physical Review A.https://doi.org/10.1103/physreva.79.042337 

Sperling, J., &; Vogel, W. (2009). Necessary and sufficient conditions for bipartite entanglement. Physical Review A.https://doi.org/10.1103/physreva.79.022318 

Vogel, W., Kiesel, T., &; Sperling, J. (2010). Characterizing nonclassicality and entanglement. Optics and Spectroscopy, 197–205.https://doi.org/10.1134/s0030400x10020074 

Sperling, J., &; Vogel, W. (2011). Determination of the Schmidt number. Physical Review A.https://doi.org/10.1103/physreva.83.042315 

Sperling, J., &; Vogel, W. (2011). The Schmidt number as a universal entanglement measure. Physica Scripta, Article 045002.https://doi.org/10.1088/0031-8949/83/04/045002 

Gehrke, C., Sperling, J., &; Vogel, W. (2012). Quantification of nonclassicality. Physical Review A.https://doi.org/10.1103/physreva.86.052118 

Pagel, D., Fehske, H., Sperling, J., &; Vogel, W. (2012). Strongly entangled light from planar microcavities. Physical Review A.https://doi.org/10.1103/physreva.86.052313 

Miranowicz, A., Horodecki, P., Chhajlany, R. W., Tuziemski, J., &; Sperling, J. (2012). Analytical progress on symmetric geometric discord: Measurement-based upper bounds. Physical Review A.https://doi.org/10.1103/physreva.86.042123 

Sperling, J., Vogel, W., &; Agarwal, G. S. (2012). Sub-Binomial Light. Physical Review Letters.https://doi.org/10.1103/physrevlett.109.093601 

Sperling, J., &; Vogel, W. (2012). Entanglement quasiprobabilities of squeezed light. New Journal of Physics, Article 055026.https://doi.org/10.1088/1367-2630/14/5/055026 

Sperling, J., Vogel, W., &; Agarwal, G. S. (2012). True photocounting statistics of multiple on-off detectors. Physical Review A.https://doi.org/10.1103/physreva.85.023820 

Sperling, J., Vogel, W., &; Agarwal, G. S. (2013). Correlation measurements with on-off detectors. Physical Review A.https://doi.org/10.1103/physreva.88.043821 

Pagel, D., Fehske, H., Sperling, J., &; Vogel, W. (2013). Multipartite entangled light from driven microcavities. Physical Review A.https://doi.org/10.1103/physreva.88.042310 

Sperling, J., &; Vogel, W. (2013). Multipartite Entanglement Witnesses. Physical Review Letters.https://doi.org/10.1103/physrevlett.111.110503 

Agudelo, E., Sperling, J., &; Vogel, W. (2013). Quasiprobabilities for multipartite quantum correlations of light. Physical Review A.https://doi.org/10.1103/physreva.87.033811 

Shahandeh, F., Sperling, J., &; Vogel, W. (2014). Structural Quantification of Entanglement. Physical Review Letters.https://doi.org/10.1103/physrevlett.113.260502 

Gutiérrez-Esparza, A. J., Pimenta, W. M., Marques, B., Matoso, A. A., Sperling, J., Vogel, W., &; Pádua, S. (2014). Detection of nonlocal superpositions. Physical Review A.https://doi.org/10.1103/physreva.90.032328 

Mraz, M., Sperling, J., Vogel, W., &; Hage, B. (2014). Witnessing the degree of nonclassicality of light. Physical Review A.https://doi.org/10.1103/physreva.90.033812 

Vogel, W., &; Sperling, J. (2014). Unified quantification of nonclassicality and entanglement. Physical Review A.https://doi.org/10.1103/physreva.89.052302 

Sperling, J., Vogel, W., &; Agarwal, G. S. (2014). Quantum state engineering by click counting. Physical Review A.https://doi.org/10.1103/physreva.89.043829 

Steinhoff, F. E. S., de Oliveira, M. C., Sperling, J., &; Vogel, W. (2014). Bipartite bound entanglement in continuous variables through degaussification. Physical Review A.https://doi.org/10.1103/physreva.89.032313 

Shahandeh, F., Sperling, J., &; Vogel, W. (2014). Operational Gaussian Schmidt-number witnesses. Physical Review A.https://doi.org/10.1103/physreva.88.062323 

Lipfert, T., Sperling, J., &; Vogel, W. (2015). Homodyne detection with on-off detector systems. Physical Review A.https://doi.org/10.1103/physreva.92.053835 

Agudelo, E., Sperling, J., Vogel, W., Köhnke, S., Mraz, M., &; Hage, B. (2015). Continuous sampling of the squeezed-state nonclassicality. Physical Review A.https://doi.org/10.1103/physreva.92.033837 

Ryl, S., Sperling, J., Agudelo, E., Mraz, M., Köhnke, S., Hage, B., &; Vogel, W. (2015). Unified nonclassicality criteria. Physical Review A.https://doi.org/10.1103/physreva.92.011801 

Sperling, J., &; Vogel, W. (2015). Convex ordering and quantification of quantumness. Physica Scripta, Article 074024.https://doi.org/10.1088/0031-8949/90/7/074024 

Bohmann, M., Sperling, J., &; Vogel, W. (2015). Entanglement and phase properties of noisy NOON states. Physical Review A.https://doi.org/10.1103/physreva.91.042332 

Reusch, A., Sperling, J., &; Vogel, W. (2015). Entanglement witnesses for indistinguishable particles. Physical Review A.https://doi.org/10.1103/physreva.91.042324 

Luis, A., Sperling, J., &; Vogel, W. (2015). Nonclassicality Phase-Space Functions: More Insight with Fewer Detectors. Physical Review Letters.https://doi.org/10.1103/physrevlett.114.103602 

Sperling, J., Vogel, W., &; Agarwal, G. S. (2015). Balanced homodyne detection with on-off detector systems: Observable nonclassicality criteria. EPL (Europhysics Letters), Article 34001.https://doi.org/10.1209/0295-5075/109/34001 

Gerke, S., Sperling, J., Vogel, W., Cai, Y., Roslund, J., Treps, N., &; Fabre, C. (2015). Full Multipartite Entanglement of Frequency-Comb Gaussian States. Physical Review Letters.https://doi.org/10.1103/physrevlett.114.050501 

Sperling, J., Bohmann, M., Vogel, W., Harder, G., Brecht, B., Ansari, V., &; Silberhorn, C. (2015). Uncovering Quantum Correlations with Time-Multiplexed Click Detection. Physical Review Letters.https://doi.org/10.1103/physrevlett.115.023601 

Gerke, S., Sperling, J., Vogel, W., Cai, Y., Roslund, J., Treps, N., &; Fabre, C. (2016). Multipartite Entanglement of a Two-Separable State. Physical Review Letters.https://doi.org/10.1103/physrevlett.117.110502 

Sperling, J., Bartley, T., Donati, G., Barbieri, M., Jin, X.-M., Datta, A., Vogel, W., &; Walmsley, I. A. (2016). Quantum Correlations from the Conditional Statistics of Incomplete Data. Physical Review Letters.https://doi.org/10.1103/physrevlett.117.083601 

Bohmann, M., Semenov, A. A., Sperling, J., &; Vogel, W. (2016). Gaussian entanglement in the turbulent atmosphere. Physical Review A.https://doi.org/10.1103/physreva.94.010302 

Sperling, J., Vogel, W., &; Agarwal, G. S. (2016). Operational definition of quantum correlations of light. Physical Review A.https://doi.org/10.1103/physreva.94.013833 

Sperling, J. (2016). Characterizing maximally singular phase-space distributions. Physical Review A.https://doi.org/10.1103/physreva.94.013814 

Krumm, F., Sperling, J., &; Vogel, W. (2016). Multitime correlation functions in nonclassical stochastic processes. Physical Review A.https://doi.org/10.1103/physreva.93.063843 

Bruns, D., Sperling, J., &; Scheel, S. (2016). Witnessing random unitary and projective quantum channels: Complementarity between separable and maximally entangled states. Physical Review A.https://doi.org/10.1103/physreva.93.032132 

Heilmann, R., Sperling, J., Perez-Leija, A., Gräfe, M., Heinrich, M., Nolte, S., Vogel, W., &; Szameit, A. (2016). Harnessing click detectors for the genuine characterization of light states. Scientific Reports.https://doi.org/10.1038/srep19489 

Sperling, J., &; Walmsley, I. A. (2017). Separable and Inseparable Quantum Trajectories. Physical Review Letters.https://doi.org/10.1103/physrevlett.119.170401 

Kröger, J., Ahrens, T., Sperling, J., Vogel, W., Stolz, H., &; Hage, B. (2017). High intensity click statistics from a 10 × 10 avalanche photodiode array. Journal of Physics B: Atomic, Molecular and Optical Physics, Article 214003.https://doi.org/10.1088/1361-6455/aa8e68 

Sperling, J., Perez-Leija, A., Busch, K., &; Walmsley, I. A. (2017). Quantum coherences of indistinguishable particles. Physical Review A.https://doi.org/10.1103/physreva.96.032334 

Agudelo, E., Sperling, J., Costanzo, L. S., Bellini, M., Zavatta, A., &; Vogel, W. (2017). Conditional Hybrid Nonclassicality. Physical Review Letters.https://doi.org/10.1103/physrevlett.119.120403 

Kühn, B., Vogel, W., &; Sperling, J. (2017). Displaced photon-number entanglement tests. Physical Review A.https://doi.org/10.1103/physreva.96.032306 

Bohmann, M., Sperling, J., &; Vogel, W. (2017). Entanglement verification of noisy NOON states. Physical Review A.https://doi.org/10.1103/physreva.96.012321 

Sperling, J., Eckstein, A., Clements, W. R., Moore, M., Renema, J. J., Kolthammer, W. S., Nam, S. W., Lita, A., Gerrits, T., Walmsley, I. A., Agarwal, G. S., &; Vogel, W. (2017). Identification of nonclassical properties of light with multiplexing layouts. Physical Review A.https://doi.org/10.1103/physreva.96.013804 

Sperling, J., &; Walmsley, I. A. (2017). Entanglement in macroscopic systems. Physical Review A.https://doi.org/10.1103/physreva.95.062116 

Sperling, J., Agudelo, E., Walmsley, I. A., &; Vogel, W. (2017). Quantum correlations in composite systems. Journal of Physics B: Atomic, Molecular and Optical Physics, Article 134003.https://doi.org/10.1088/1361-6455/aa7438 

Krumm, F., Vogel, W., &; Sperling, J. (2017). Time-dependent quantum correlations in phase space. Physical Review A.https://doi.org/10.1103/physreva.95.063805 

Bohmann, M., Kruse, R., Sperling, J., Silberhorn, C., &; Vogel, W. (2017). Probing free-space quantum channels with laboratory-based experiments. Physical Review A.https://doi.org/10.1103/physreva.95.063801 

Ryl, S., Sperling, J., &; Vogel, W. (2017). Quantifying nonclassicality by characteristic functions. Physical Review A.https://doi.org/10.1103/physreva.95.053825 

Sperling, J., Clements, W. R., Eckstein, A., Moore, M., Renema, J. J., Kolthammer, W. S., Nam, S. W., Lita, A., Gerrits, T., Vogel, W., Agarwal, G. S., &; Walmsley, I. A. (2017). Detector-Independent Verification of Quantum Light. Physical Review Letters.https://doi.org/10.1103/physrevlett.118.163602 

Bohmann, M., Kruse, R., Sperling, J., Silberhorn, C., &; Vogel, W. (2017). Direct calibration of click-counting detectors. Physical Review A.https://doi.org/10.1103/physreva.95.033806 

Bohmann, M., Sperling, J., Semenov, A. A., &; Vogel, W. (2017). Higher-order nonclassical effects in fluctuating-loss channels. Physical Review A.https://doi.org/10.1103/physreva.95.012324 

Perez-Leija, A., Leon-Montiel, R. de J., Sperling, J., Moya-Cessa, H., Szameit, A., &; Busch, K. (2017). Two-particle four-point correlations in dynamically disordered tight-binding networks. Journal of Physics B: Atomic, Molecular and Optical Physics, Article 024002.https://doi.org/10.1088/1361-6455/aa9aa1 

Sperling, J., &; Walmsley, I. A. (2018). Quasistates and quasiprobabilities. Physical Review A.https://doi.org/10.1103/physreva.98.042122 

Gerke, S., Vogel, W., &; Sperling, J. (2018). Numerical Construction of Multipartite Entanglement Witnesses. Physical Review X.https://doi.org/10.1103/physrevx.8.031047 

Sperling, J., &; Walmsley, I. A. (2018). Quasiprobability representation of quantum coherence. Physical Review A.https://doi.org/10.1103/physreva.97.062327 

Kovalenko, O. P., Sperling, J., Vogel, W., &; Semenov, A. A. (2018). Geometrical picture of photocounting measurements. Physical Review A.https://doi.org/10.1103/physreva.97.023845 

Bohmann, M., Tiedau, J., Bartley, T., Sperling, J., Silberhorn, C., &; Vogel, W. (2018). Incomplete Detection of Nonclassical Phase-Space Distributions. Physical Review Letters.https://doi.org/10.1103/physrevlett.120.063607 

Sperling, J., &; Vogel, W. (2019). Quasiprobability distributions for quantum-optical coherence and beyond. Physica Scripta, Article 034007.https://doi.org/10.1088/1402-4896/ab5501 

Cimini, V., Gianani, I., Sbroscia, M., Sperling, J., &; Barbieri, M. (2019). Measuring coherence of quantum measurements. Physical Review Research.https://doi.org/10.1103/physrevresearch.1.033020 

Rezai, M., Sperling, J., &; Gerhardt, I. (2019). What can single photons do what lasers cannot do? Quantum Science and Technology, Article 045008.https://doi.org/10.1088/2058-9565/ab3d56 

Phillips, D. S., Walschaers, M., Renema, J. J., Walmsley, I. A., Treps, N., &; Sperling, J. (2019). Benchmarking of Gaussian boson sampling using two-point correlators. Physical Review A.https://doi.org/10.1103/physreva.99.023836 

Sperling, J., Perez-Leija, A., Busch, K., &; Silberhorn, C. (2019). Mode-independent quantum entanglement for light. Physical Review A.https://doi.org/10.1103/physreva.100.062129 

Sperling, J., Meyer-Scott, E., Barkhofen, S., Brecht, B., &; Silberhorn, C. (2019). Experimental Reconstruction of Entanglement Quasiprobabilities. Physical Review Letters.https://doi.org/10.1103/physrevlett.122.053602 

Sperling, J., Phillips, D. S., Bulmer, J. F. F., Thekkadath, G. S., Eckstein, A., Wolterink, T. A. W., Lugani, J., Nam, S. W., Lita, A., Gerrits, T., Vogel, W., Agarwal, G. S., Silberhorn, C., &; Walmsley, I. A. (2020). Detector-Agnostic Phase-Space Distributions. Physical Review Letters.https://doi.org/10.1103/physrevlett.124.013605 

Engelkemeier, M., Lorz, L., De, S., Brecht, B., Dhand, I., Plenio, M. B., Silberhorn, C., &; Sperling, J. (2020). Quantum photonics with active feedback loops. Physical Review A, 102, Article 023712.https://doi.org/10.1103/physreva.102.023712 

Nitsche, T., De, S., Barkhofen, S., Meyer-Scott, E., Tiedau, J., Sperling, J., Gábris, A., Jex, I., &; Silberhorn, C. (2020). Local Versus Global Two-Photon Interference in Quantum Networks. Physical Review Letters.https://doi.org/10.1103/physrevlett.125.213604 

Bohmann, M., Agudelo, E., &; Sperling, J. (2020). Probing nonclassicality with matrices of phase-space distributions. Quantum, Article 343.https://doi.org/10.22331/q-2020-10-15-343 

Sperling, J., &; Walmsley, I. A. (2020). Classical evolution in quantum systems. Physica Scripta, Article 065101.https://doi.org/10.1088/1402-4896/ab833b 

Luo, K. H., Santandrea, M., Stefszky, M., Sperling, J., Massaro, M., Ferreri, A., Sharapova, P., Herrmann, H., &; Silberhorn, C. (2021). Quantum optical coherence: From linear to nonlinear interferometers. Physical Review A.https://doi.org/10.1103/physreva.104.043707 

Lüders, C., Pukrop, M., Rozas, E., Schneider, C., Höfling, S., Sperling, J., Schumacher, S., &; Aßmann, M. (2021). Quantifying Quantum Coherence in Polariton Condensates. PRX Quantum.https://doi.org/10.1103/prxquantum.2.030320 

Bagrets, D., Kim, K. W., Barkhofen, S., De, S., Sperling, J., Silberhorn, C., Altland, A., &; Micklitz, T. (2021). Probing the topological Anderson transition with quantum walks. Physical Review Research.https://doi.org/10.1103/physrevresearch.3.023183 

Geraldi, A., De, S., Laneve, A., Barkhofen, S., Sperling, J., Mataloni, P., &; Silberhorn, C. (2021). Transient subdiffusion via disordered quantum walks. Physical Review Research.https://doi.org/10.1103/physrevresearch.3.023052 

Tiedau, J., Engelkemeier, M., Brecht, B., Sperling, J., &; Silberhorn, C. (2021). Statistical Benchmarking of Scalable Photonic Quantum Systems. Physical Review Letters, 126, Article 023601.https://doi.org/10.1103/physrevlett.126.023601 

Prasannan, N., De, S., Barkhofen, S., Brecht, B., Silberhorn, C., &; Sperling, J. (2021). Experimental entanglement characterization of two-rebit states. Physical Review A, 103.https://doi.org/10.1103/physreva.103.l040402 

Köhnke, S., Agudelo, E., Schünemann, M., Schlettwein, O., Vogel, W., Sperling, J., &; Hage, B. (2021). Quantum Correlations beyond Entanglement and Discord. Physical Review Letters.https://doi.org/10.1103/physrevlett.126.170404 

Meier, T., Hoepker, J. P., Protte, M., Eigner, C., Silberhorn, C., Sharapova, P. R., Sperling, J., &; Bartley, T. (2022). Two-Mode Photon-Number Correlations Created by Measurement-Induced Nonlinearity. Conference on Lasers and Electro-Optics: Applications and Technology, JTu3A. 17.https://doi.org/10.1364/CLEO_AT.2022.JTu3A.17 

Prasannan, N., Sperling, J., Brecht, B., &; Silberhorn, C. (2022). Direct Measurement of Higher-Order Nonlinear Polarization Squeezing. Physical Review Letters, 129(26), Article 263601.https://doi.org/10.1103/physrevlett.129.263601 

Held, P., Engelkemeier, M., De, S., Barkhofen, S., Sperling, J., &; Silberhorn, C. (2022). Driven Gaussian quantum walks. Physical Review A, 105(4), Article 042210.https://doi.org/10.1103/physreva.105.042210 

Sperling, J., &; Agudelo, E. (2023). Entanglement of particles versus entanglement of fields: Independent quantum resources. Physical Review A, 107(4), Article 042420.https://doi.org/10.1103/physreva.107.042420 

Sperling, J., Gianani, I., Barbieri, M., &; Agudelo, E. (2023). Detector entanglement: Quasidistributions for Bell-state measurements. Physical Review A, 107(1), Article 012426.https://doi.org/10.1103/physreva.107.012426 

Lüders, C., Pukrop, M., Barkhausen, F., Rozas, E., Schneider, C., Höfling, S., Sperling, J., Schumacher, S., &; Aßmann, M. (2023). Tracking Quantum Coherence in Polariton Condensates with Time-Resolved Tomography. Physical Review Letters, 130(11), Article 113601.https://doi.org/10.1103/physrevlett.130.113601 

Protte, M., Schapeler, T., Sperling, J., &; Bartley, T. (2024). Low-noise balanced homodyne detection with superconducting nanowire single-photon detectors. Optica Quantum, 2(1), Article 1.https://doi.org/10.1364/opticaq.502201 

Pinske, J., &; Sperling, J. (2024). Unbreakable and breakable quantum censorship. Physical Review A, 109(5), Article 052408.https://doi.org/10.1103/physreva.109.052408 

De, S., Ansari, V., Sperling, J., Barkhofen, S., Brecht, B., &; Silberhorn, C. (2024). Realization of high-fidelity unitary operations on up to 64 frequency bins. Physical Review Research, 6(2), Article L022040.https://doi.org/10.1103/physrevresearch.6.l022040