Improved scaling of time-evolving block-decimation algorithm through reduced-rank randomized singular value decomposition – D. Tamascelli, R. Rosenbach and M.B. Plenio
Physical Review E 91, 063306 (2015) | ArXiv

 Resolving single molecule structures with Nitrogen-vacancy centers in diamond - M. Kost, J.-M. Cai and M.B. Plenio
Scientific Reports 5, 11007 (2015)ArXiv

Scalable Reconstruction of Unitary Processes and Hamiltonians – M. Holzäpfel, T. Baumgratz, M. Cramer and M.B. Plenio
Physical Review A 91, 042129 (2015) | ArXiv

Universal Set of Gate for Microwave Dressed-state Quantum Computing – G. Mikelsons, I. Cohen, A. Retzker and M.B. Plenio
New Journal of Physics 17, 053032 (2015) | ArXiv

 Redfield equations for modeling light-harvesting complexes - J. Jeske, D. Ing, M. B. Plenio, S. F. Huelga and J. H. Cole
Journal of Physical Chemistry 142, 064104 (2015) | ArXiv

Two-Dimensional Spectroscopy for the Study of Ion Coulomb Crystals – A. Lemmer, C. Cormick, C. T. Schmiegelow, F. Schmidt-Kaler and M. B. Plenio
Physical Review Letters 114, 073001 (2015) | ArXiv

Nondestructive selective probing of phononic excitations in a cold Bose gas using impurities – D. Hangleiter, M. T. Mitchison, T. H. Johnson, M. Bruderer, M. B. Plenio, and D. Jaksch
Physical Review A 91, 013611 (2015) | ArXiv



Tillmann Baumgratz defended his PhD thesis and was awarded the PhD with a Distinction. Now he is off to new shores,  taking up a postdoctoral position at Clarendon Laboratory, Oxford University, to work in the group of Animesh Datta. The amazing graduation hat was designed by his office mates, Andreas and Robert, and had some tomography component plus a reminder of a snowboarding mishap (never try to impress your girlfriend too much) during his time with us. Fortunately, there is no (much) snow in Oxford…

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Sarah Pomiersky completed her Master thesis under the supervision of Chris Schroeder and Martin Plenio. Good occasion to celebrate with our favourite Quarkkuchen from the Ulmer Zuckerbäcker. Sarah decided to move to the real world to pursuing a career in industry or consulting. We still hope that she may not like it and be back! 

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Debora Contreras has been awarded a long term fellowship to join the Institute of Physics at the UNAM, in Mexico DF. This is the first step to become a permanent member of staff and we congratulate Debora warmly on the success. Cecilia Cormick has also returned to Latin-American to take up a research position the Universidad Nacional de Cordoba in her native Argentina. Jianming Cai is also on the move after having accepted a Full Professor position at the University of Wuham in China. We are very happy that also Cecilia and Jianming will continue their careers in academia. movers9





<= Cecilia explains the intricacies of “alfajores” to a concentrated north American audience (Chris Schroeder and Nathan Killoran).
Thanks to Debora we got to know some amazing Mexican sweets:

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The LH1-like coconut ring has achieved cult status in the seminar board…
Jianming was the official liaison officer with our favourite Chinese restaurant in Ulm. We look forward to his next visit so that to properly celebrate his new position in China with a delicious Peking duck with pancakes.

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Abolfazl Bayat , on the left, is now back in London, working with Sougato Bose in UCL.

ITP publishes another work in Nature Communications

Colour centers in diamond are very sensitive magnetic field sensors. Just how sensitivewas demonstrated by Fedor Jelezko and his team together with Jianming and Martin. Implanting a single NV colour center just 2nm below the surface they were able to observe the magnetic field of just a few silicon nuclear spins. This feat became possible by using state-of-the-art noise decoupling sequences and advanced methods of signal processing which allowed the team to extract the relevant information from a noisy signal. This is another step towards the holy grail of examining protein structure by means of diamond sensors. For the complete story go to Nature Communications 4, 3704 (2014)

ITP work published in Nature Communications

Nature Communications publishes an article in which Jianming, Fedor and Martin propose a hybrid sensor composed of a colour centre in diamond which is covered by a piezomagnetic material. The resulting device promises a sensitivity for pressure and force that is three orders of magnitude increased compared to a colour centre in diamond. The very same design may also lead to the same enhancement for electron spin-vibrational coupling thus providing new routes to the design of nanomechanical systems. You can read the complete story in Nature Communications 5, 4065 (2014).

ITP work is chosen as Editor’s Suggestion in PRL

Our recent article “Extracting Entanglement from Identical Particles,” by Nathan, Marcus, and Martin, has been highlighted as an Editor’s Suggestion in the most recent volume of Physical Review Letters. This distinction recognizes papers which are particularly well-written and of broad interest to readers from many fields of physics. In this work, we show how the intrinsic entanglement of identical particles can be extracted and put to use for practical quantum information tasks. The article can be found at http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.112.150501.

JCP Editors’ Choice for 2013

Our article “Origin of long-lived oscillations in 2D-spectra of a quantum vibronic model: Electronic versus vibrational coherence” has been chosen to be included in the 2013 The Journal of Chemical Physics Editors’ Choice collection. These include a few notable JCP articles that represent the most innovative and influential articles of 2013. The collection is available on the JCP website: http://scitation.aip.org/content/jcp-editors–choice-for-2013. The articles will be freely available until the end of 2014.


Appearance of Gibbs states in quantum-state tomography – J. Rau
Physical Review A, 90, 062114 (2014) | ArXiv

Quantum channels and memory effects – F. Caruso, V. Giovannetti, C. Lupo and S. Mancini
Reviews of Modern Physics 86, 1203 (2014) | ArXiv

Dephasing-assisted transport in linear triple quantum dots – L. D. Contreras-Pulido, M. Bruderer, S. F. Huelga, and M. B. Plenio
New Journal of Physics 16, 113061 (2014) | ArXiv

 Experimental Reconstruction of Work Distribution and Study of Fluctuation Relations in a Closed Quantum System – Tiago B. Batalhão, Alexandre M. Souza, Laura Mazzola, Ruben Auccaise, Roberto S. Sarthour, Ivan S. Oliveira, John Goold, Gabriele De Chiara, Mauro Paternostro, and Roberto M. Serra
Physical Review Letters 113, 140601 (2014)ArXiv
*Editors’ Suggestion

 Quantifying Coherence – T. Baumgratz, M. Cramer, and M. B. Plenio
Physical Review Letters 113, 140401 (2014)ArXiv
*Editors’ Suggestion

 Testing quantum gravity by nanodiamond interferometry with nitrogen-vacancy centers - A. Albrecht, A. Retzker and M.B. Plenio
Physical Review A 90, 033834 (2014) | ArXiv

 Self-assembling hybrid diamond-biological quantum devices - A. Albrecht, A. Retzker, G. Koplovitz, F. Jelezko, S. Yochelis, Y. Nevo, O. Shoseyov, Y. Paltiel and M.B. Plenio
New Journal of Physics 16, 093002 (2014) | ArXiv

 Nuclear magnetic resonance spectroscopy with single spin sensitivity – A. C. Müller, X. Kong, J.-M. Cai, K. Melentijevic, A. Stacey, M. Markham, J. Isoya, S. Pezzagna, J. Meijer, J. Du, M.B. Plenio, B. Naydenov, L.P. McGuinness and F. Jelezko
Nature Communications 4, 3704 (2014)

 Quantum non-Markovianity: characterization, quantification and detection – A. Rivas, S.F. Huelga and M.B. Plenio
Reports on Progress in Physics 77, 094001 (2014) | ArXiv

All-optical magnetic resonance of high spectral resolution using a nitrogen-vacanvy spin in diamond – Z.-Y. Wang, J.M. Cai, A. Retzker and M.B. Plenio
New Journal of Physics 16, 083033 (2014) | ArXiv

 Quantum metrology subject to spatially correlated Markovian noise: restoring the Heisenberg limit – J. Jeske, J.Cole and S.F. Huelga
New Journal of Physics 16, 073039 (2014) | ArXiv

 Competition between memory-keeping and memory-erasing decoherence channels – T.J.G. Apollaro, S. Lorenzo, C. Di Franco, F. Plastina and M. Paternostro
Physical Review A 90, 012310 (2014) ArXiv

 Tuning heat transport in trapped-ion chains across a structural phase transition – A. Ruiz, D. Alonso, M.B. Plenio and A. del Campo
Physical Review B 89, 214305 (2014) ArXiv

 Hybrid sensor based on colour centres in diamond and piezoactive layers – J.M. Cai, F. Jelezko and M.B. Plenio
Nature Communications 5, 4065 (2014) | ArXiv

 Phonon-induced dynamic resonance energy transfer – J. Lim, M. Tame, K. Hyuk Yee, J.-S. Lee and J. Lee
New Journal of Physics 16, 053018 (2014) | ArXiv

Transport enhancement from incoherent coupling between one-dimensional quantum conductor – J. J. Mendoza-Arenas, M. T. Michison, S. R. Clark, J. Prior, D. Jaksch and M. B. Plenio
New Journal of Physics 16, 053016 (2014) | ArXiv

 Extracting Entanglement from Identical Particles - N. Killoran, M. Cramer, and M. B. Plenio
Physical Review Letters 112, 150501 (2014)ArXiv

 Realistic and verifiable coherent control of excitonic states in a light-harvesting complex - S. Hoyer, F. Caruso, S. Montangero, M. Sarovar, T. Calarco, M. B. Plenio und B. Whaley
New Journal of Physics 16, 045007 (2014) | ArXiv

 Inverse counting statistics for stochastic and open quantum systems: the characteristic polynomial approach - M. Bruderer, L. D. Contreras-Pulido, M. Thaller, L. Sironi, D. Obreschkow and M. B. Plenio
New Journal of Physics 16, 033030 (2014) ArXiv

 Quantifying entanglement with scattering experiments - O. Marty, M. Epping, H. Kampermann, D. Bruß, M. B. Plenio and M. Cramer
Physical Review B 89, 125117 (2014) ArXiv

 Mappings of open quantum systems onto chain representations and Markovian embeddings – M. P. Woods, R. Groux, A. W. Chin, S. F. Huelga and M. B. Plenio
Journal of Mathematical Physics 55, 032101 (2014) ArXiv