Klemens Hammerer

9.3k total citations · 3 hit papers
111 papers, 6.6k citations indexed

About

Klemens Hammerer is a scholar working on Atomic and Molecular Physics, and Optics, Artificial Intelligence and Electrical and Electronic Engineering. According to data from OpenAlex, Klemens Hammerer has authored 111 papers receiving a total of 6.6k indexed citations (citations by other indexed papers that have themselves been cited), including 108 papers in Atomic and Molecular Physics, and Optics, 55 papers in Artificial Intelligence and 30 papers in Electrical and Electronic Engineering. Recurrent topics in Klemens Hammerer's work include Mechanical and Optical Resonators (52 papers), Quantum Information and Cryptography (52 papers) and Cold Atom Physics and Bose-Einstein Condensates (37 papers). Klemens Hammerer is often cited by papers focused on Mechanical and Optical Resonators (52 papers), Quantum Information and Cryptography (52 papers) and Cold Atom Physics and Bose-Einstein Condensates (37 papers). Klemens Hammerer collaborates with scholars based in Germany, Austria and Denmark. Klemens Hammerer's co-authors include E. S. Polzik, Markus Aspelmeyer, Anders S. Sørensen, J. I. Cirac, Simon Gröblacher, Michael R. Vanner, P. Zoller, Hanna Krauter, Brian Julsgaard and Jacob Sherson and has published in prestigious journals such as Nature, Science and Proceedings of the National Academy of Sciences.

In The Last Decade

Klemens Hammerer

106 papers receiving 6.4k citations

Hit Papers

Quantum interface between light and atomic ensembles 2006 2026 2012 2019 2010 2009 2006 250 500 750
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Quantum interface between light and atomic ensembles
    2010 865 citations Klemens Hammerer, E. S. Polzik et al. profile →
  2. Observation of strong coupling between a micromechanical resonator and an optical cavity field
    2009 764 citations Klemens Hammerer, Markus Aspelmeyer et al. profile →
  3. Quantum teleportation between light and matter
    2006 675 citations Hanna Krauter, Klemens Hammerer et al. profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Klemens Hammerer Germany 41 6.1k 3.4k 2.3k 428 319 111 6.6k
E. S. Polzik Denmark 48 12.0k 2.0× 8.4k 2.5× 2.2k 0.9× 416 1.0× 494 1.5× 167 12.9k
Yu-Ao Chen China 43 5.9k 1.0× 5.3k 1.6× 739 0.3× 174 0.4× 295 0.9× 107 6.9k
Marco Barbieri Italy 39 5.1k 0.8× 5.4k 1.6× 914 0.4× 561 1.3× 131 0.4× 133 6.4k
Mang Feng China 39 4.2k 0.7× 3.1k 0.9× 920 0.4× 472 1.1× 346 1.1× 215 4.6k
Keith Schwab United States 34 6.7k 1.1× 2.1k 0.6× 3.8k 1.6× 600 1.4× 1.1k 3.5× 73 7.5k
Radoslaw C. Bialczak United States 30 5.9k 1.0× 4.1k 1.2× 1.6k 0.7× 324 0.8× 362 1.1× 34 6.5k
Peter Rabl Austria 43 7.7k 1.3× 3.3k 1.0× 2.3k 1.0× 1.1k 2.5× 710 2.2× 83 8.1k
R. W. Simmonds United States 38 7.5k 1.2× 3.6k 1.1× 3.5k 1.5× 405 0.9× 405 1.3× 84 8.3k
Arno Rauschenbeutel Germany 35 6.7k 1.1× 4.0k 1.2× 2.3k 1.0× 231 0.5× 291 0.9× 105 7.6k
Milena Grifoni Germany 32 3.9k 0.6× 940 0.3× 1.1k 0.5× 1.2k 2.8× 1.3k 4.1× 130 5.0k

Countries citing papers authored by Klemens Hammerer

Since Specialization
Citations

This map shows the geographic impact of Klemens Hammerer's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Klemens Hammerer with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Klemens Hammerer more than expected).

Fields of papers citing papers by Klemens Hammerer

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Klemens Hammerer. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Klemens Hammerer. The network helps show where Klemens Hammerer may publish in the future.

Co-authorship network of co-authors of Klemens Hammerer

This figure shows the co-authorship network connecting the top 25 collaborators of Klemens Hammerer. A scholar is included among the top collaborators of Klemens Hammerer based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Klemens Hammerer. Klemens Hammerer is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Krämer, Johannes, Nicolas Spethmann, Klemens Hammerer, et al.. (2026). Entanglement-Enhanced Optical Ion Clock. Physical Review Letters. 136(7). 73601–73601.
2.
Krämer, Johannes, et al.. (2024). Multi-ion Frequency Reference Using Dynamical Decoupling. Physical Review Letters. 133(3). 33203–33203. 5 indexed citations
3.
Winkler, K., et al.. (2024). Macroscopic quantum entanglement between an optomechanical cavity and a continuous field in presence of non-Markovian noise. Physical Review Research. 6(1). 5 indexed citations
4.
Chen, Shuying, et al.. (2024). Identification of highly forbidden optical transitions in highly charged ions. Physical Review Applied. 22(5). 1 indexed citations
5.
Hammerer, Klemens, et al.. (2024). Quantum retrodiction in Gaussian systems and applications in optomechanics. SHILAP Revista de lepidopterología. 2. 4 indexed citations
6.
Hammerer, Klemens, et al.. (2023). Optimal Ramsey interferometry with echo protocols based on one-axis twisting. Physical review. A. 108(6). 3 indexed citations
7.
Mahmoodian, Sahand, Arno Rauschenbeutel, Max Schemmer, et al.. (2023). Higher-order mean-field theory of chiral waveguide QED. SciPost Physics Core. 6(2). 12 indexed citations
8.
Bock, Matthias, et al.. (2023). Sideband Thermometry of Ion Crystals. PRX Quantum. 4(4). 4 indexed citations
9.
Schmidt, Piet O., et al.. (2023). Quadrupole transitions and quantum gates protected by continuous dynamic decoupling. Quantum Science and Technology. 9(1). 15013–15013. 3 indexed citations
10.
Vitanov, Nikolay V., et al.. (2022). Numerical optimization of amplitude-modulated pulses in microwave-driven entanglement generation. Quantum Science and Technology. 7(4). 45005–45005. 5 indexed citations
11.
Mahmoodian, Sahand, Klemens Hammerer, Arno Rauschenbeutel, et al.. (2021). Unraveling Two-Photon Entanglement via the Squeezing Spectrum of Light Traveling through Nanofiber-Coupled Atoms. INO Open Portal. 19 indexed citations
12.
Loriani, Sina, Christian Schubert, Sven Abend, et al.. (2021). Inertial sensing with quantum gases: a comparative performance study of condensed versus thermal sources for atom interferometry. The European Physical Journal D. 75(3). 14 indexed citations
13.
Winkler, K., S. Höfer, Nathan Walk, et al.. (2020). Stationary optomechanical entanglement between a mechanical oscillator and its measurement apparatus. Physical Review Research. 2(3). 25 indexed citations
14.
Wolf, Fabian, Manuel Gessner, Luca Pezzè, et al.. (2019). Motional Fock states for quantum-enhanced amplitude and phase measurements with trapped ions. Nature Communications. 10(1). 2929–2929. 85 indexed citations
15.
Kampschulte, Tobias, et al.. (2018). Light-Mediated Collective Atomic Motion in an Optical Lattice Coupled to a Membrane. Physical Review Letters. 120(7). 73602–73602. 20 indexed citations
16.
Zeuthen, Emil, et al.. (2018). Unconditional Steady-State Entanglement in Macroscopic Hybrid Systems by Coherent Noise Cancellation. Physical Review Letters. 121(10). 103602–103602. 21 indexed citations
17.
Muschik, Christine A., Hanna Krauter, Klemens Hammerer, & E. S. Polzik. (2011). Quantum Information at the Interface of Light with Mesoscopic Objects. arXiv (Cornell University). 1 indexed citations
18.
Ludwig, Max, Klemens Hammerer, & Florian Marquardt. (2009). Creation and destruction of entanglement by a nonequilibrium environment. arXiv (Cornell University).
19.
Rabl, Peter, Claudiu Genes, Klemens Hammerer, & Markus Aspelmeyer. (2009). Phase-noise induced limitations in resolved-sideband cavity cooling of mechanical resonators. arXiv (Cornell University). 3 indexed citations
20.
Hammerer, Klemens, et al.. (2008). Quantum Interface for Nanomechanics and Atomic Ensembles. arXiv (Cornell University). 1 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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