Ulm's Institute of Theoretical Physics
@qubitulm.bsky.social
This is the the account of the Institute of Theoretical Physics of Ulm University.
Director: Martin B. Plenio .
Webpage: https://www.uni-ulm.de/en/nawi/institut-fuer-theoretische-physik-start-page/home/
Director: Martin B. Plenio .
Webpage: https://www.uni-ulm.de/en/nawi/institut-fuer-theoretische-physik-start-page/home/
Pinned
✨ Hello, Bluesky! ✨
We’re thrilled to join this amazing platform and connect with the scientific community in new and exciting ways. Follow us here at @qubitulm for cutting-edge physics research, inspiring collaborations, and all the latest from our institute! #Quantum
We’re thrilled to join this amazing platform and connect with the scientific community in new and exciting ways. Follow us here at @qubitulm for cutting-edge physics research, inspiring collaborations, and all the latest from our institute! #Quantum
We are on a roll! Yet another paper from the group. Learn how biomolecular switches may profit from operating in a correlated manner, e.g. by being in contact with the same environment in a work by Rudi, Daniel and Giovanni. journals.aps.org/pra/abstract...
#Quantum @quantumbiology.bsky.social
#Quantum @quantumbiology.bsky.social
Correlated dynamics as a resource in molecular switches
Photoisomerization, a photochemical process underlying many biological mechanisms, has been modeled recently within the quantum resource theory of thermodynamics. This approach has emerged as a promis...
journals.aps.org
October 11, 2025 at 9:26 PM
We are on a roll! Yet another paper from the group. Learn how biomolecular switches may profit from operating in a correlated manner, e.g. by being in contact with the same environment in a work by Rudi, Daniel and Giovanni. journals.aps.org/pra/abstract...
#Quantum @quantumbiology.bsky.social
#Quantum @quantumbiology.bsky.social
We are pleased to announce that our work on a full microscopic simulations which uncovers quantum effects in primary photosynthesis has appeared in Science Advances. Read more on www.science.org/doi/10.1126/... @quantumbiology.bsky.social @quantumtechnology.bsky.social
Full microscopic simulations uncover persistent quantum effects in primary photosynthesis
Exact simulations reveal picosecond quantum coherences in the FMO photosynthetic complex at room temperature.
www.science.org
October 4, 2025 at 4:13 PM
We are pleased to announce that our work on a full microscopic simulations which uncovers quantum effects in primary photosynthesis has appeared in Science Advances. Read more on www.science.org/doi/10.1126/... @quantumbiology.bsky.social @quantumtechnology.bsky.social
Learn how you can use quantum resource theories to analyse the role of vibrations in photoisomerisation in doi.org/10.1103/ws4m.... @quantumtechnology.bsky.social @quantumbiology.bsky.social
Quantum-resource-theoretical analysis of the role of vibrational structure in photoisomerization
Thermodynamical systems at the nanoscale, such as single molecules interacting with highly structured vibrational environments, typically undergo nonequilibrium physical processes that lack precise mi...
doi.org
October 4, 2025 at 4:11 PM
Learn how you can use quantum resource theories to analyse the role of vibrations in photoisomerisation in doi.org/10.1103/ws4m.... @quantumtechnology.bsky.social @quantumbiology.bsky.social
What happens when you use nanodiamonds to measure temperature inside a cell? Learn about pitfalls and solution in r doi.org/10.1002/advs... in a work led by Maabur Sow. @nanodiamond.bsky.social @quantumtechnology.bsky.social
Millikelvin Intracellular Nanothermometry with Nanodiamonds
Nanothermometry in living cells is crucial for understanding heat diffusion and advancing cellular biology and drug discovery. Previous studies have reported controversial intracellular temperature v...
doi.org
October 4, 2025 at 4:07 PM
What happens when you use nanodiamonds to measure temperature inside a cell? Learn about pitfalls and solution in r doi.org/10.1002/advs... in a work led by Maabur Sow. @nanodiamond.bsky.social @quantumtechnology.bsky.social
Pleased to announce the publication of work with our friends from NVision on new candidates for quantum information processing - chemically designed carbene molecules which host a electron spin-triplet ground state. Find ODMR and more here pubs.acs.org/doi/10.1021/... @quantumcomputing.bsky.social
Optically Detected Magnetic Resonance on Carbene Molecular Qubits
Solid-state quantum systems with optical and spin degrees of freedom have found widespread application in emerging quantum technologies. Recently, molecular qubits came forward as precisely tunable en...
pubs.acs.org
October 4, 2025 at 4:04 PM
Pleased to announce the publication of work with our friends from NVision on new candidates for quantum information processing - chemically designed carbene molecules which host a electron spin-triplet ground state. Find ODMR and more here pubs.acs.org/doi/10.1021/... @quantumcomputing.bsky.social
Two years of work including a full year of writing arxiv.org/abs/2508.07488 explains how to overcome the impact of dipolar fields in para hydrogen induced polarisation using pulsed control sequences to achieve unlimited molar polarisation. #NMRchat #quantum
PHIP Sequences and Dipolar Fields
Para-hydrogen induced polarization (PHIP) achieves efficient hyperpolarisation of nuclear spins with the transfer of the singlet order of parahydrogen to target molecules through catalytic hydrogenati...
arxiv.org
August 12, 2025 at 2:08 PM
Two years of work including a full year of writing arxiv.org/abs/2508.07488 explains how to overcome the impact of dipolar fields in para hydrogen induced polarisation using pulsed control sequences to achieve unlimited molar polarisation. #NMRchat #quantum
Martin presenting the groups work on quantum control for quantum sensing and nuclear spin hyperpolarisation at the QI2025 in Osaka. The colourful pictures in the background show the performance of our PulsePol sequence in parahydrogen induced polaridsation. #quantum #NMR #hyperpolarization
August 6, 2025 at 8:52 PM
Martin presenting the groups work on quantum control for quantum sensing and nuclear spin hyperpolarisation at the QI2025 in Osaka. The colourful pictures in the background show the performance of our PulsePol sequence in parahydrogen induced polaridsation. #quantum #NMR #hyperpolarization
Quantum collision models are central in quantum thermo, open systems and quantum simulations but they lack a comprehensive error certification. In our new paper, we elevate collision models to numerically exact methods and enhance their reliability #Quantum
doi.org/10.1038/s420...
doi.org/10.1038/s420...
Making quantum collision models exact - Communications Physics
Quantum collision models are pivotal for simulating open quantum systems, yet lack comprehensive error certification. The authors analytically derive Markovian and non-Markovian collision models from ...
doi.org
July 3, 2025 at 7:40 AM
Quantum collision models are central in quantum thermo, open systems and quantum simulations but they lack a comprehensive error certification. In our new paper, we elevate collision models to numerically exact methods and enhance their reliability #Quantum
doi.org/10.1038/s420...
doi.org/10.1038/s420...
Great annual meeting of QuantERA project ExTraQt quantera.eu/extraqt/ at the Center for Quantum BioScience www.uni-ulm.de/en/nawi/cent... in Ulm. The project explores the intersection of Quantum Information Theory and the Life Sciences. #Quantum @quantumbioorg.bsky.social
May 30, 2025 at 7:14 PM
Great annual meeting of QuantERA project ExTraQt quantera.eu/extraqt/ at the Center for Quantum BioScience www.uni-ulm.de/en/nawi/cent... in Ulm. The project explores the intersection of Quantum Information Theory and the Life Sciences. #Quantum @quantumbioorg.bsky.social
Our group members Trini, Luciano, Susana and Martin were awarded the “Honorable Mention Award” by the Gravity Research Foundation for their essay related to testing non-classical aspects of gravity via angular momentum entanglement 🍎 #Quantum #Gravity
www.gravityresearchfoundation.org/announcement
www.gravityresearchfoundation.org/announcement
Gravity Research Foundation
Gravity Research Foundation's essay competition winners for this year!
www.gravityresearchfoundation.org
May 16, 2025 at 11:09 AM
Our group members Trini, Luciano, Susana and Martin were awarded the “Honorable Mention Award” by the Gravity Research Foundation for their essay related to testing non-classical aspects of gravity via angular momentum entanglement 🍎 #Quantum #Gravity
www.gravityresearchfoundation.org/announcement
www.gravityresearchfoundation.org/announcement
Electron-vibrational coupling is fundamental in biological electron transport but its signatures in ultrafast spectroscopy is hard to compute. Read journals.aps.org/prresearch/a... to learn how quantum computers can accelerate this task. #Quantum #QuantumBiology #Quantumcomputing
Accelerating two-dimensional electronic spectroscopy simulations with a probe qubit protocol
Two-dimensional electronic spectroscopy (2DES) is a powerful tool for exploring quantum effects in energy transport within photosynthetic systems and investigating novel material properties. However, ...
journals.aps.org
May 9, 2025 at 7:23 PM
Electron-vibrational coupling is fundamental in biological electron transport but its signatures in ultrafast spectroscopy is hard to compute. Read journals.aps.org/prresearch/a... to learn how quantum computers can accelerate this task. #Quantum #QuantumBiology #Quantumcomputing
Last week we have been delighted to welcome part of the QTT team from Edinburgh ✨ After the inspiring discussions and exciting ideas, we are looking forward to the fruitful collaboration ahead! #Quantum
May 6, 2025 at 9:23 AM
Last week we have been delighted to welcome part of the QTT team from Edinburgh ✨ After the inspiring discussions and exciting ideas, we are looking forward to the fruitful collaboration ahead! #Quantum
A new work on quantum metrology. What started with a summer project gradually evolved to deliver a new technique to compute non-linear quantities such as Fisher-Information from bosonic fields leaving a noisy driven-dissipative quantum sensor. arxiv.org/abs/2504.12400 #Quantum
Quantum Cramer-Rao Precision Limit of Noisy Continuous Sensing
Quantum sensors hold considerable promise for precision measurement, yet their capabilities are inherently constrained by environmental noise. A fundamental task in quantum sensing is determining the ...
arxiv.org
April 23, 2025 at 2:11 PM
A new work on quantum metrology. What started with a summer project gradually evolved to deliver a new technique to compute non-linear quantities such as Fisher-Information from bosonic fields leaving a noisy driven-dissipative quantum sensor. arxiv.org/abs/2504.12400 #Quantum
Proud to announce our new work on the application of resource theories to the Life Sciences. Do molecular photoswitches profit from correlations? Read this labour of love which evolved over several years via a Bachelor and a Masters thesis. arxiv.org/abs/2504.12202
Correlations as a resource in molecular switches
Photoisomerization, a photochemical process underlying many biological mechanisms, has been modeled recently within the quantum resource theory of thermodynamics. This approach has emerged as a promis...
arxiv.org
April 23, 2025 at 2:06 PM
Proud to announce our new work on the application of resource theories to the Life Sciences. Do molecular photoswitches profit from correlations? Read this labour of love which evolved over several years via a Bachelor and a Masters thesis. arxiv.org/abs/2504.12202
In today's seminar we had Trini presenting her latest ideas on the use of spin coherent states in noisy quantum metrology ⬆️✨ Is entanglement a powerful resource when dealing with more realistic scenarios? 🤔 #Quantum #Metrology #entanglement
April 10, 2025 at 3:22 PM
In today's seminar we had Trini presenting her latest ideas on the use of spin coherent states in noisy quantum metrology ⬆️✨ Is entanglement a powerful resource when dealing with more realistic scenarios? 🤔 #Quantum #Metrology #entanglement
Today, Felix gave us a nice review on resource theories of channels, superchannels and super-maps with a full description on how to characterize them in the case of coherence theory ✨ Applications coming up very soon... #Quantum #ResourceTheory #QuantumComputing
April 3, 2025 at 5:22 PM
Today, Felix gave us a nice review on resource theories of channels, superchannels and super-maps with a full description on how to characterize them in the case of coherence theory ✨ Applications coming up very soon... #Quantum #ResourceTheory #QuantumComputing
In today's seminar, Luciano explored the many existing proposals for defining a spin operator in the relativistic regime🏃♀️ Followed by a discussion about the theoretical and experimental implications of achieving a consistent definition✨ #Quantum #Relativity
March 27, 2025 at 3:30 PM
In today's seminar, Luciano explored the many existing proposals for defining a spin operator in the relativistic regime🏃♀️ Followed by a discussion about the theoretical and experimental implications of achieving a consistent definition✨ #Quantum #Relativity
New preprint is out on ArXiv ✨
In this work, we boost our numerically exact method and simulated electronic dynamics of pigment-protein complexes based on full microscopic models, showing picosecond-lived inter-excitonic coherences 🌱
#QuantumBiology #Photosynthesis
👉 arxiv.org/abs/2503.17282
In this work, we boost our numerically exact method and simulated electronic dynamics of pigment-protein complexes based on full microscopic models, showing picosecond-lived inter-excitonic coherences 🌱
#QuantumBiology #Photosynthesis
👉 arxiv.org/abs/2503.17282
Full Microscopic Simulations Uncover Persistent Quantum Effects in Primary Photosynthesis
The presence of quantum effects in photosynthetic excitation energy transfer has been intensely debated over the past decade. Nonlinear spectroscopy cannot unambiguously distinguish coherent electroni...
arxiv.org
March 25, 2025 at 9:05 AM
New preprint is out on ArXiv ✨
In this work, we boost our numerically exact method and simulated electronic dynamics of pigment-protein complexes based on full microscopic models, showing picosecond-lived inter-excitonic coherences 🌱
#QuantumBiology #Photosynthesis
👉 arxiv.org/abs/2503.17282
In this work, we boost our numerically exact method and simulated electronic dynamics of pigment-protein complexes based on full microscopic models, showing picosecond-lived inter-excitonic coherences 🌱
#QuantumBiology #Photosynthesis
👉 arxiv.org/abs/2503.17282
Today we had our Dani Siciliano telling us about his journey in finding steady states imposing positivity on tensor networks✨ Is it possible to do so avoiding the complexity of transient dynamics? #Quantum #Metrology #Science
March 20, 2025 at 4:43 PM
Today we had our Dani Siciliano telling us about his journey in finding steady states imposing positivity on tensor networks✨ Is it possible to do so avoiding the complexity of transient dynamics? #Quantum #Metrology #Science
Today’s seminar reminded us how crucial mental & physical health are in academia. Creating a safe space to discuss challenges, share experiences, laugh and support each other makes all the difference. Let’s keep the conversation going! 💙 #AcademicLife #MentalHealthInAcademia
March 11, 2025 at 4:25 PM
Today’s seminar reminded us how crucial mental & physical health are in academia. Creating a safe space to discuss challenges, share experiences, laugh and support each other makes all the difference. Let’s keep the conversation going! 💙 #AcademicLife #MentalHealthInAcademia
Marit presenting her work of the last months on the physics of levitated particles. Discussing finer points with the team. #Quantum #Interferometry
March 8, 2025 at 5:15 PM
Marit presenting her work of the last months on the physics of levitated particles. Discussing finer points with the team. #Quantum #Interferometry
We are pleased that our paper on record levels of polarisation of nanodiamond powders at room temperature by Martin K&P's has appeared in Science Advances www.science.org/doi/10.1126/... together with our friends in the Institute of Quantum Optics #Quantum #NMR #NMRChat
13C hyperpolarization with nitrogen-vacancy centers in micro- and nanodiamonds for sensitive magnetic resonance applications
Nuclear hyperpolarization of 13C spins is performed at ambient conditions in micro- and nanodiamonds.
www.science.org
March 5, 2025 at 9:11 AM
We are pleased that our paper on record levels of polarisation of nanodiamond powders at room temperature by Martin K&P's has appeared in Science Advances www.science.org/doi/10.1126/... together with our friends in the Institute of Quantum Optics #Quantum #NMR #NMRChat
At our institute's latest talk, we explored the intricate relationship between work, power, and efficiency in quantum engines 🔥 Selma told us how quantum thermodynamics could unlock near-optimal efficiency for mesoscopic engines & nanodevices #QuantumThermodynamics #QuantumTechnologies
February 20, 2025 at 3:10 PM
At our institute's latest talk, we explored the intricate relationship between work, power, and efficiency in quantum engines 🔥 Selma told us how quantum thermodynamics could unlock near-optimal efficiency for mesoscopic engines & nanodevices #QuantumThermodynamics #QuantumTechnologies
Award time at Uni Ulm's Dies Academicus! Our Ilai Schwartz receives the Uni Ulm PhD Prize. Martin Plenio & Fedor Jelezko win the University-Industry Cooperation Prize for co-founding NVision with Ilai, recognising a decade of work towards developing NVision and it's tech to market! #Quantum
February 12, 2025 at 9:42 PM
Award time at Uni Ulm's Dies Academicus! Our Ilai Schwartz receives the Uni Ulm PhD Prize. Martin Plenio & Fedor Jelezko win the University-Industry Cooperation Prize for co-founding NVision with Ilai, recognising a decade of work towards developing NVision and it's tech to market! #Quantum
New preprint is out ✨
In this work, we present an alternative tensor network framework to simulate optical circuits by leveraging their input-output relations, eliminating the computational costs of compression techniques in standard tensor networks. Check it out 👇
arxiv.org/abs/2502.01737
In this work, we present an alternative tensor network framework to simulate optical circuits by leveraging their input-output relations, eliminating the computational costs of compression techniques in standard tensor networks. Check it out 👇
arxiv.org/abs/2502.01737
Operator-basis Matrix Product State formalism for optical circuits
Tensor network formalisms have emerged as powerful tools for simulating quantum state evolution. While widely applied in the study of optical quantum circuits, such as Boson Sampling, existing tensor ...
arxiv.org
February 11, 2025 at 4:11 PM
New preprint is out ✨
In this work, we present an alternative tensor network framework to simulate optical circuits by leveraging their input-output relations, eliminating the computational costs of compression techniques in standard tensor networks. Check it out 👇
arxiv.org/abs/2502.01737
In this work, we present an alternative tensor network framework to simulate optical circuits by leveraging their input-output relations, eliminating the computational costs of compression techniques in standard tensor networks. Check it out 👇
arxiv.org/abs/2502.01737