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ResearcherID: C-3538-2008
Scopus Author ID: 6507027737

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Leibniz Universität Hannover: Hannover, Niedersachsen, DE

2010-10-15 to present | Full Professor (Institute for Theoretical Physics)
Employment
Source: Self-asserted source
Klemens Hammerer

Works (50 of 146)

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Page 1 of 3

Robust double Bragg diffraction via detuning control

Physical Review Research
2024-12-04 | Journal article
DOI: 10.1103/PhysRevResearch.6.043236
Contributors: Rui Li; V. J. Martínez-Lahuerta; S. Seckmeyer; Klemens Hammerer; Naceur Gaaloul
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Crossref

Identification of highly forbidden optical transitions in highly charged ions

Physical Review Applied
2024-11-21 | Journal article
DOI: 10.1103/PhysRevApplied.22.054059
Contributors: Shuying Chen; Lukas J. Spieß; Alexander Wilzewski; Malte Wehrheim; Kai Dietze; Ivan Vybornyi; Klemens Hammerer; José R. Crespo López-Urrutia; Piet O. Schmidt
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GHZ protocols enhance frequency metrology despite spontaneous decay

Science Advances
2024-10-23 | Journal article | Author
DOI: 10.1126/sciadv.adr1439
Contributors: Klemens Hammerer; Piet Schmidt; Timm Kielinski
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AAAS - Science
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Matter waves hang in there

Nature Physics
2024-08 | Journal article
DOI: 10.1038/s41567-024-02605-x
Contributors: Klemens Hammerer; Naceur Gaaloul
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Crossref

Accurate and efficient Bloch-oscillation-enhanced atom interferometry

Physical Review Research
2024-08-05 | Journal article
DOI: 10.1103/PhysRevResearch.6.L032028
Contributors: F. Fitzek; J.-N. Kirsten-Siemß; E. M. Rasel; N. Gaaloul; K. Hammerer
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Crossref

Multi-ion Frequency Reference Using Dynamical Decoupling

Physical Review Letters
2024-07-17 | Journal article
DOI: 10.1103/PhysRevLett.133.033203
Contributors: Lennart Pelzer; Kai Dietze; Víctor José Martínez-Lahuerta; Ludwig Krinner; Johannes Kramer; Fabian Dawel; Nicolas C. H. Spethmann; Klemens Hammerer; Piet O. Schmidt
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Macroscopic quantum entanglement between an optomechanical cavity and a continuous field in presence of non-Markovian noise

Physical Review Research
2024-02-16 | Journal article
DOI: 10.1103/PhysRevResearch.6.013175
Contributors: S. Direkci; K. Winkler; C. Gut; K. Hammerer; M. Aspelmeyer; Y. Chen
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Crossref

Atom interferometers in weakly curved spacetimes using Bragg diffraction and Bloch oscillations

Physical Review D
2024-01-29 | Journal article
DOI: 10.1103/PhysRevD.109.022008
Contributors: Michael Werner; Philip K. Schwartz; Jan-Niclas Kirsten-Siemß; Naceur Gaaloul; Domenico Giulini; Klemens Hammerer
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Crossref

Quadrupole transitions and quantum gates protected by continuous dynamic decoupling

Quantum Science and Technology
2024-01-01 | Journal article
DOI: 10.1088/2058-9565/ad085b
Contributors: V J Martínez-Lahuerta; L Pelzer; K Dietze; L Krinner; P O Schmidt; K Hammerer
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Crossref

Sideband Thermometry of Ion Crystals

PRX Quantum
2023-12-20 | Journal article
DOI: 10.1103/PRXQuantum.4.040346
Contributors: Ivan Vybornyi; Laura S. Dreissen; Dominik Kiesenhofer; Helene Hainzer; Matthias Bock; Tuomas Ollikainen; Daniel Vadlejch; Christian F. Roos; Tanja E. Mehlstäubler; Klemens Hammerer
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Crossref

Optimal Ramsey interferometry with echo protocols based on one-axis twisting

Physical Review A
2023-12-11 | Journal article
DOI: 10.1103/PhysRevA.108.062611
Contributors: M. S. Scharnagl; T. Kielinski; K. Hammerer
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Crossref

Large-Momentum-Transfer Atom Interferometers with μrad -Accuracy Using Bragg Diffraction

Physical Review Letters
2023-07-19 | Journal article
DOI: 10.1103/PhysRevLett.131.033602
Contributors: J.-N. Kirsten-Siemß; F. Fitzek; C. Schubert; E. M. Rasel; N. Gaaloul; K. Hammerer
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Crossref

Light–matter quantum interface with continuous pump and probe

Journal of Physics B: Atomic, Molecular and Optical Physics
2023-03-14 | Journal article
DOI: 10.1088/1361-6455/acb6db
Contributors: Alexander Roth; Klemens Hammerer; Kirill S Tikhonov
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Crossref

Numerical optimization of amplitude-modulated pulses in microwave-driven entanglement generation

Quantum Science and Technology
2022-10-01 | Journal article
DOI: 10.1088/2058-9565/ac7b41
Contributors: M Duwe; G Zarantonello; N Pulido-Mateo; H Mendpara; L Krinner; A Bautista-Salvador; N V Vitanov; K Hammerer; R F Werner; C Ospelkaus
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Crossref

All-optical coherent quantum-noise cancellation in cascaded optomechanical systems

Physical Review A
2022-09-28 | Journal article
DOI: 10.1103/PhysRevA.106.033520
Contributors: Jakob Schweer; Daniel Steinmeyer; Klemens Hammerer; Michèle Heurs
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Crossref

Ab initio quantum theory of mass defect and time dilation in trapped-ion optical clocks

Physical Review A
2022-09-07 | Journal article
DOI: 10.1103/PhysRevA.106.032803
Contributors: V. J. Martínez-Lahuerta; S. Eilers; T. E. Mehlstäubler; P. O. Schmidt; K. Hammerer
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Crossref

Quantum Variational Optimization of Ramsey Interferometry and Atomic Clocks

Physical Review X
2021-12-06 | Journal article
DOI: 10.1103/PhysRevX.11.041045
Contributors: Raphael Kaubruegger; Denis V. Vasilyev; Marius Schulte; Klemens Hammerer; Peter Zoller
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Crossref

Unraveling Two-Photon Entanglement via the Squeezing Spectrum of Light Traveling through Nanofiber-Coupled Atoms

Physical Review Letters
2021-09-14 | Journal article
DOI: 10.1103/PhysRevLett.127.123602
Contributors: Jakob Hinney; Adarsh S. Prasad; Sahand Mahmoodian; Klemens Hammerer; Arno Rauschenbeutel; Philipp Schneeweiss; Jürgen Volz; Max Schemmer
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Crossref

Quantum logic inspired techniques for spacetime-symmetry tests with (anti-)protons

New Journal of Physics
2021-07-01 | Journal article
DOI: 10.1088/1367-2630/ac136e
Contributors: Juan M Cornejo; Ralf Lehnert; Malte Niemann; Johannes Mielke; Teresa Meiners; Amado Bautista-Salvador; Marius Schulte; Diana Nitzschke; Matthias J Borchert; Klemens Hammerer et al.
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Crossref

Twin-lattice atom interferometry

Nature Communications
2021-05-05 | Journal article
DOI: 10.1038/s41467-021-22823-8
Contributors: Martina Gebbe; Jan-Niclas Siemß; Matthias Gersemann; Hauke Müntinga; Sven Herrmann; Claus Lämmerzahl; Holger Ahlers; Naceur Gaaloul; Christian Schubert; Klemens Hammerer et al.
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Dynamics of Many-Body Photon Bound States in Chiral Waveguide QED

Physical Review X
2020 | Journal article
DOI: 10.1103/PhysRevX.10.031011
EID:

2-s2.0-85091827561

Part of ISSN: 21603308
Contributors: Mahmoodian, S.; Calajó, G.; Chang, D.E.; Hammerer, K.; Sørensen, A.S.
Source: Self-asserted source
Klemens Hammerer via Scopus - Elsevier

ELGAR - A European Laboratory for Gravitation and Atom-interferometric Research

Classical and Quantum Gravity
2020 | Journal article
DOI: 10.1088/1361-6382/aba80e
EID:

2-s2.0-85092581700

Part of ISSN: 13616382 02649381
Contributors: Canuel, B.; Abend, S.; Amaro-Seoane, P.; Badaracco, F.; Beaufils, Q.; Bertoldi, A.; Bongs, K.; Bouyer, P.; Braxmaier, C.; Chaibi, W. et al.
Source: Self-asserted source
Klemens Hammerer via Scopus - Elsevier

Universal atom interferometer simulation of elastic scattering processes

Scientific Reports
2020 | Journal article
DOI: 10.1038/s41598-020-78859-1
EID:

2-s2.0-85097665300

Part of ISSN: 20452322
Contributors: Fitzek, F.; Siemß, J.-N.; Seckmeyer, S.; Ahlers, H.; Rasel, E.M.; Hammerer, K.; Gaaloul, N.
Source: Self-asserted source
Klemens Hammerer via Scopus - Elsevier

Correlating photons using the collective nonlinear response of atoms weakly coupled to an optical mode

Nature Photonics
2020-12-21 | Journal article
DOI: 10.1038/s41566-020-0692-z
Contributors: Adarsh S. Prasad; Jakob Hinney; Sahand Mahmoodian; Klemens Hammerer; Samuel Rind; Philipp Schneeweiss; Anders S. Sørensen; Jürgen Volz; Arno Rauschenbeutel
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Crossref
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Elementary Laser‐Less Quantum Logic Operations with (Anti‐)Protons in Penning Traps

Advanced Quantum Technologies
2020-11 | Journal article
DOI: 10.1002/qute.201900133
Contributors: Diana Nitzschke; Marius Schulte; Malte Niemann; Juan M. Cornejo; Stefan Ulmer; Ralf Lehnert; Christian Ospelkaus; Klemens Hammerer
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Crossref

Prospects and challenges for squeezing-enhanced optical atomic clocks

Nature Communications
2020-11-24 | Journal article
DOI: 10.1038/s41467-020-19403-7
Contributors: Marius Schulte; Christian Lisdat; Piet O. Schmidt; Uwe Sterr; Klemens Hammerer
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Crossref
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Analytic theory for Bragg atom interferometry based on the adiabatic theorem

Physical Review A
2020-09-10 | Journal article
DOI: 10.1103/PhysRevA.102.033709
Contributors: Jan-Niclas Siemß; Florian Fitzek; Sven Abend; Ernst M. Rasel; Naceur Gaaloul; Klemens Hammerer
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Crossref
grade
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Light-mediated strong coupling between a mechanical oscillator and atomic spins 1 meter apart

Science
2020-07-10 | Journal article
DOI: 10.1126/science.abb0328
Contributors: Thomas M. Karg; Baptiste Gouraud; Chun Tat Ngai; Gian-Luca Schmid; Klemens Hammerer; Philipp Treutlein
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Crossref
grade
Preferred source (of 2)‎

Ramsey interferometry with generalized one-axis twisting echoes

Quantum
2020-05-15 | Journal article
DOI: 10.22331/q-2020-05-15-268
Contributors: Marius Schulte; Victor J. Martínez-Lahuerta; Maja S. Scharnagl; Klemens Hammerer
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Crossref
grade
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Universal Atom Interferometer Simulator -- Elastic Scattering Processes

2020-02-12 | Preprint
ARXIV: arXiv:2002.05148v1
Source: Self-asserted source
Klemens Hammerer

Analytic theory for Bragg atom interferometry based on the adiabatic theorem

2020-02-11 | Preprint
ARXIV: arXiv:2002.04588v2
Source: Self-asserted source
Klemens Hammerer

Elementary laser-less quantum logic operations with (anti-)protons in Penning traps

2019-12-04 | Preprint
ARXIV: arXiv:1912.02046v1
Source: Self-asserted source
Klemens Hammerer

Stationary optomechanical entanglement between a mechanical oscillator and its measurement apparatus

2019-12-03 | Preprint
ARXIV: arXiv:1912.01635v1
Source: Self-asserted source
Klemens Hammerer
grade
Preferred source (of 2)‎

Complete theory of Ramsey interferometry with squeezing echoes

2019-11-26 | Preprint
ARXIV: arXiv:1911.11801v2
Source: Self-asserted source
Klemens Hammerer
grade
Preferred source (of 2)‎

Correlating photons using the collective nonlinear response of atoms weakly coupled to an optical mode

2019-11-21 | Preprint
ARXIV: arXiv:1911.09701v1
Source: Self-asserted source
Klemens Hammerer

Robust and resource-efficient microwave near-field entangling $^9$Be$^+$ gate

Physical Review Letters
2019-11-10 | Preprint
DOI: 10.1103/PhysRevLett.123.260503
DOI: 10.1103/PhysRevLett.123.260503
ARXIV: arXiv:1911.03954v1
Source: Self-asserted source
Klemens Hammerer
grade
Preferred source (of 3)‎

ELGAR -- a European Laboratory for Gravitation and Atom-interferometric Research

2019-11-09 | Preprint
ARXIV: arXiv:1911.03701v1
Source: Self-asserted source
Klemens Hammerer

Spin squeezing can only improve clocks with small atom number

2019-11-03 | Preprint
ARXIV: arXiv:1911.00882v1
Source: Self-asserted source
Klemens Hammerer

Dynamics of many-body photon bound states in chiral waveguide QED

2019-10-13 | Preprint
ARXIV: arXiv:1910.05828v2
Source: Self-asserted source
Klemens Hammerer

Twin-lattice atom interferometry

2019-07-19 | Preprint
ARXIV: arXiv:1907.08416v1
Source: Self-asserted source
Klemens Hammerer

Motional Fock states for quantum-enhanced amplitude and phase measurements with trapped ions

Nature Communications
2019-07-02 | Journal article
DOI: 10.1038/s41467-019-10576-4
Contributors: Fabian Wolf; Chunyan Shi; Jan C. Heip; Manuel Gessner; Luca Pezzè; Augusto Smerzi; Marius Schulte; Klemens Hammerer; Piet O. Schmidt
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Crossref
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Integrated $^{9}$Be$^{+}$ multi-qubit gate device for the ion-trap quantum computer

npj Quantum Inf 5, 70 (2019)
2019-02-19 | Preprint
DOI: 10.1038/s41534-019-0184-5
ARXIV: arXiv:1902.07028v3
Source: Self-asserted source
Klemens Hammerer
grade
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Remote Hamiltonian Interactions Mediated by Light

Phys. Rev. A 99, 063829 (2019)
2019-01-21 | Preprint
DOI: 10.1103/physreva.99.063829
ARXIV: arXiv:1901.06891v2
Source: Self-asserted source
Klemens Hammerer
grade
Preferred source (of 2)‎

Photon-recoil spectroscopy: Systematic shifts and nonclassical enhancements

Physical Review A
2018 | Journal article
DOI: 10.1103/PhysRevA.98.063808
EID:

2-s2.0-85057769920

Part of ISSN: 24699934 24699926
Contributors: Schulte, M.; Lörch, N.; Schmidt, P.O.; Hammerer, K.
Source: Self-asserted source
Klemens Hammerer via Scopus - Elsevier

Strongly Correlated Photon Transport in Waveguide Quantum Electrodynamics with Weakly Coupled Emitters

Physical Review Letters
2018-10-03 | Journal article
DOI: 10.1103/physrevlett.121.143601
Part of ISSN: 0031-9007
Part of ISSN: 1079-7114
Source: Self-asserted source
Klemens Hammerer
grade
Preferred source (of 2)‎

Spatially Adiabatic Frequency Conversion in Optoelectromechanical Arrays

Physical Review Letters
2018-09-14 | Journal article
DOI: 10.1103/physrevlett.121.110506
Part of ISSN: 0031-9007
Part of ISSN: 1079-7114
Source: Self-asserted source
Klemens Hammerer
grade
Preferred source (of 2)‎

Unconditional steady-state entanglement in macroscopic hybrid systems by coherent noise cancellation

Phys. Rev. Lett. 121, 103602 (2018)
2018-01-08 | Preprint
DOI: 10.1103/physrevlett.121.103602
ARXIV: arXiv:1801.02569v2
Source: Self-asserted source
Klemens Hammerer
grade
Preferred source (of 2)‎

Quantum back action evading measurements in a spin-mechanics hybrid system

Optics InfoBase Conference Papers
2017 | Conference paper
DOI: 10.1364/CLEO_AT.2017.JTh4G.5
EID:

2-s2.0-85020413393
Contributors: Thomas, R.A.; Moeller, C.B.; Vasilakis, G.; Zeuthen, E.; Tsaturyan, Y.; Jensen, K.; Schliesser, A.; Hammerer, K.; Polzik, E.S.
Source: Self-asserted source
Klemens Hammerer via Scopus - Elsevier

Quantum Control of Optomechanical Systems

Advances in Atomic, Molecular and Optical Physics
2017 | Book chapter
DOI: 10.1016/bs.aamop.2017.03.003
EID:

2-s2.0-85019491951

Part of ISSN: 1049250X
Contributors: Hofer, S.G.; Hammerer, K.
Source: Self-asserted source
Klemens Hammerer via Scopus - Elsevier

Quantum Nonlinear Optics in Optomechanical Nanoscale Waveguides

Physical Review Letters
2017 | Journal article
DOI: 10.1103/PhysRevLett.119.123602
EID:

2-s2.0-85030163482

Part of ISSN: 10797114 00319007
Contributors: Zoubi, H.; Hammerer, K.
Source: Self-asserted source
Klemens Hammerer via Scopus - Elsevier
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Peer review (8 reviews for 4 publications/grants)

Review activity for Advanced quantum technologies. (2)
Review activity for Nature (3)
Review activity for Nature photonics (1)
Review activity for Nature physics (2)
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