Philipp Schindler

Our results on single molecule spectroscopy have been published. This has been one of the major goals of our lab @uniinnsbruck.bsky.social ! A more detailed summary is given on our website: www.quantum-molecules.eu The full text is available open access at: www.nature.com/articles/s41...

quantum-molecules.euQuantum moleculesA highly-customizable Hugo research group theme powered by Wowchemy website builder.

27 Aug

We managed to record the vibrational spectrum of a single molecular ion by measuring the recoil of absorbing individual photons. This recoil is so tiny that it can only be detected via a tailored quantum state known as "cat state".

@quantum-journal.bsky.social

27 Aug

We generate the cat state by entangling the molecule with a co-trapped atomic ion with methods that we developed for ion trap quantum computers. Thanks to all co-workers and collaborators

Philipp Schindler reposted

Quantum Journal

13 Mar

Celebrate with us Quantum's approaching 10 year anniversary in 2026 with the publication of the 2026th paper! Do you know which paper that is? quantum-journal.org/2026-quantum...

quantum-journal.org2026 Quantum papers!Congratulations Quantum community! It’s hard to believe 10 years have passed and we’re en route to our 10-year founding anniversary in April 2026. On that occasion we wanted to announce ...

Philipp Schindler reposted

Mark A. Hanson

@hansonmark.bsky.social

28 Nov 2025

Replying to @hansonmark.bsky.social

In general, let's just stop paying companies that host this BS. Fight the drain of scientific publishing. arxiv.org/abs/2511.04820

7 Nov 2025

Our paper on 2D connectivity in ion traps has been published. We demonstrate the building blocks of a trapped ion architecture that does not need junctions or ion crystal splitting and merging. This has been a tour de force but it has been worth it. journals.aps.org/prx/abstract...

7 Nov 2025

The quantum register is divided into subregisters on a 2D lattice. The interactions between those can be controlled by the distance between the ion strings. The coupling can be relatively strong and is insensitive to electric field noise. We show entanglement between two separate trapping sites.

28 May 2025

There is much community knowledge about quantum systems that is hard to find in publications. Silicon is not ideal for ion traps at cryogenic temperatures. We worked with Infineon Austria to develop a fused silica based trap instead of silicon for complex trap designs. arxiv.org/abs/2505.21284

nature.comSimulating two-dimensional lattice gauge theories on a qudit quantum computer - Nature PhysicsQubit-based simulations of gauge theories are challenging as gauge fields require high-dimensional encoding. Now a quantum electrodynamics model has been demonstrated using trapped-ion qudits, which e...

25 Mar 2025

Hats off to Michael Meth for doing the experiments on this monster project: www.nature.com/articles/s41...

Philipp Schindler reposted

Ferlaino Group

@ferlainogroup.bsky.social

31 Jan 2025

Innsbruck is hosting YAO!!!! Are you not yet registered? Hurry up :-) list of speakers AMAZInG! Honestly, YAO is one of the best event the Atomic Physics community has ever created for PhD Students! @yao2025.bsky.social

Philipp Schindler reposted

kenbrownquantum.bsky.social

@kenbrownquantum.bsky.social

23 Jan 2025

The 7th annual STAQ Quantum Ideas Summer School will be held at Duke University June 9-13, 2025. Applications and materials from previous #SummerSTAQ events are available here: staq.pratt.duke.edu/summer-school

staq.pratt.duke.eduQuantum Ideas Summer SchoolSummer School

quantum-journal.orgStrategies for implementing quantum error correction in molecular rotationBrandon J. Furey, Zhenlin Wu, Mariano Isaza-Monsalve, Stefan Walser, Elyas Mattivi, René Nardi, and Philipp Schindler, Quantum 8, 1578 (2024). The rotation of trapped molecules offers a promising plat...

Our work on quantum error correction in molecular rotation got published in Quantum! quantum-journal.org/papers/q-202... We were inspired by @vva.bsky.social et al's work on robust encoding of quantum information in quantum rotors. We developed implementation strategies for Æ-codes in ion traps

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Found them. Quite limited selection but here you go: Without Æ-codes

With Æ-codes:

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With this framework it is not only possible to perform cycle based quantum error correction, but we also found a way to continuously correct using dissipation engineering.

All the basic physics and implementation details: quantum-journal.org/papers/q-202... Join us if you want to make molecular quantum error correction reality www.quantum-molecules.eu And since @dulwichquantum.bsky.social requests memes with every paper announcement: without and with Æ-codes:

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The absorption-emission codes are designed that an absorbed or emitted photon does not carry any information about the encoded state. We find a required hierarchy of timescales that this condition is true. One can thus find logical basis states encoded in a superposition in a single J manifold.

We have then developed a complete error correction scheme using check and correction operators that can be implemented in existing quantum logic experiments.

We are considering a simple linear rotor, whose state is defined by two quantum numbers J,m. Interactions with black body radiation follow selection rules and can change J and m by at most one.

18 Dec 2023

Our preprint on Steane QEC is online: arxiv.org/abs/2312.09745 A collaboration of @uniinnsbruck.bsky.social and FZ Jülich. In Steane QEC, the syndrome readout is performed by preparing additional logical qubits and transversal CNOTs.

18 Dec 2023

We look at Steane QEC implementations of repetition and Color codes with multiple syndrome readout cycles. For Color codes, we compare the Steane QEC to flag-based syndrome readout.

doi.orgDemonstration of Fault-Tolerant Steane Quantum Error CorrectionNew results of the performance of Steane error correction in trapped ions demonstrate improved logical fidelities and reveal a competitive approach for fault-tolerant quantum computing.

6 Dec 2024

This has been published in PRX Quantum: doi.org/10.1103/PRXQ...

23 Jan 2024

Our first work on molecular ions is on the arxiv! We had a look into the dissociation process of CaOH+. The molecule can be formed by reaction with water molecules. We took a single- and two- photon dissociation spectrum: arxiv.org/abs/2401.10854