Quantum Info at UAB
@giq-bcn.bsky.social
Theoretical Physics: Quantum Information and Quantum Phenomena at @UABBarcelona. Devoted to #research and #teaching of #QuantumInformation and #physics.
We are organizing a short course on Quantum Foundations at Universitat Autònoma de Barcelona funded by Catalonia Quantum Academy (CQA). Few spaces left! Apply before 20 August, 2025.
August 8, 2025 at 9:36 AM
We are organizing a short course on Quantum Foundations at Universitat Autònoma de Barcelona funded by Catalonia Quantum Academy (CQA). Few spaces left! Apply before 20 August, 2025.
This week’s 3× feature:
Alberto Rolandi & Julia Mathe (Atominstitut, TU Wien) on “Optimal Landauer Erasure in Finite-Time Thermo.” and “Estimating Entanglement Monotones of Perm. Invariant Spin States”, resp. Satoya Imai (LENS, Florence) on “Chiral Symmetries of Multiparticle Entanglement”. Thanks‼️
Alberto Rolandi & Julia Mathe (Atominstitut, TU Wien) on “Optimal Landauer Erasure in Finite-Time Thermo.” and “Estimating Entanglement Monotones of Perm. Invariant Spin States”, resp. Satoya Imai (LENS, Florence) on “Chiral Symmetries of Multiparticle Entanglement”. Thanks‼️
June 13, 2025 at 6:32 PM
This week’s 3× feature:
Alberto Rolandi & Julia Mathe (Atominstitut, TU Wien) on “Optimal Landauer Erasure in Finite-Time Thermo.” and “Estimating Entanglement Monotones of Perm. Invariant Spin States”, resp. Satoya Imai (LENS, Florence) on “Chiral Symmetries of Multiparticle Entanglement”. Thanks‼️
Alberto Rolandi & Julia Mathe (Atominstitut, TU Wien) on “Optimal Landauer Erasure in Finite-Time Thermo.” and “Estimating Entanglement Monotones of Perm. Invariant Spin States”, resp. Satoya Imai (LENS, Florence) on “Chiral Symmetries of Multiparticle Entanglement”. Thanks‼️
Today Joey Schindler presented a new definition of coarse-grained entropy that unifies key approaches and recovers many foundational results from statistical mechanics.
Read more
arxiv.org/abs/2503.15612 by Schindler, Strasberg, Galke, Winter, Jabbour
Read more
arxiv.org/abs/2503.15612 by Schindler, Strasberg, Galke, Winter, Jabbour
May 22, 2025 at 10:25 PM
Today Joey Schindler presented a new definition of coarse-grained entropy that unifies key approaches and recovers many foundational results from statistical mechanics.
Read more
arxiv.org/abs/2503.15612 by Schindler, Strasberg, Galke, Winter, Jabbour
Read more
arxiv.org/abs/2503.15612 by Schindler, Strasberg, Galke, Winter, Jabbour
Last week’s cool seminars
📏 Arpan Das (GIQ) Universal time scalings of sensitivity in Markovian quantum metrology
🎱 Debarshi Das (UCL) A New Experimental Proposal to Test the Quantumness of a Large Mass
🫘Giuseppe Vitagliano (TU Wien) Many-body entanglement quantification with collective measurements
📏 Arpan Das (GIQ) Universal time scalings of sensitivity in Markovian quantum metrology
🎱 Debarshi Das (UCL) A New Experimental Proposal to Test the Quantumness of a Large Mass
🫘Giuseppe Vitagliano (TU Wien) Many-body entanglement quantification with collective measurements
May 16, 2025 at 8:57 PM
Last week’s cool seminars
📏 Arpan Das (GIQ) Universal time scalings of sensitivity in Markovian quantum metrology
🎱 Debarshi Das (UCL) A New Experimental Proposal to Test the Quantumness of a Large Mass
🫘Giuseppe Vitagliano (TU Wien) Many-body entanglement quantification with collective measurements
📏 Arpan Das (GIQ) Universal time scalings of sensitivity in Markovian quantum metrology
🎱 Debarshi Das (UCL) A New Experimental Proposal to Test the Quantumness of a Large Mass
🫘Giuseppe Vitagliano (TU Wien) Many-body entanglement quantification with collective measurements
Great talk by Raúl Morral Yepes (ex-GIQ undergrad now at TUM Munich) on “Optimal unitary disentanglers for fermionic Gaussian states (and how to use them to play games).”
April 12, 2025 at 11:37 AM
Great talk by Raúl Morral Yepes (ex-GIQ undergrad now at TUM Munich) on “Optimal unitary disentanglers for fermionic Gaussian states (and how to use them to play games).”
Berta Casas from BSC gave this week’s GIQ seminar on Quantum Machine Learning with Group Structure ⚛️.
April 4, 2025 at 3:01 PM
Berta Casas from BSC gave this week’s GIQ seminar on Quantum Machine Learning with Group Structure ⚛️.
This week We had two nice seminars: Teruaki Nagasawa (Nagoya U) discussed Macroscopic states and operations: a generalized resource theory of coherence.
Ricard Puig (EPFL) examined Barren plateaus & warm starts, shedding light on quantum loss landscapes and effective training strategies for VQA.
Ricard Puig (EPFL) examined Barren plateaus & warm starts, shedding light on quantum loss landscapes and effective training strategies for VQA.
March 22, 2025 at 8:06 PM
This week We had two nice seminars: Teruaki Nagasawa (Nagoya U) discussed Macroscopic states and operations: a generalized resource theory of coherence.
Ricard Puig (EPFL) examined Barren plateaus & warm starts, shedding light on quantum loss landscapes and effective training strategies for VQA.
Ricard Puig (EPFL) examined Barren plateaus & warm starts, shedding light on quantum loss landscapes and effective training strategies for VQA.
Bravissima Ilaria Svampa defended her PhD: “Representations of the p-adic three-dimensional rotation group: towards p-adic quantum computing.” 🎓✨
Supervised by S L’Innocente, S Mancini at UNICAM and A Winter (GIQ, UAB)
A big step towards a great p-adic quantum future—wherever that may be! 😏 ⚛️
Supervised by S L’Innocente, S Mancini at UNICAM and A Winter (GIQ, UAB)
A big step towards a great p-adic quantum future—wherever that may be! 😏 ⚛️
March 19, 2025 at 8:56 AM
Bravissima Ilaria Svampa defended her PhD: “Representations of the p-adic three-dimensional rotation group: towards p-adic quantum computing.” 🎓✨
Supervised by S L’Innocente, S Mancini at UNICAM and A Winter (GIQ, UAB)
A big step towards a great p-adic quantum future—wherever that may be! 😏 ⚛️
Supervised by S L’Innocente, S Mancini at UNICAM and A Winter (GIQ, UAB)
A big step towards a great p-adic quantum future—wherever that may be! 😏 ⚛️
This week we had two seminars by Niklas Galke (GIQ PhD candidate) on Finitely correlated states; and by Tomás Fernández Martos (PhD candidate at ICFO and QUSIDE) on Security proof for randomness generation in vertical-cavity surface-emitting laser.
February 20, 2025 at 5:02 PM
This week we had two seminars by Niklas Galke (GIQ PhD candidate) on Finitely correlated states; and by Tomás Fernández Martos (PhD candidate at ICFO and QUSIDE) on Security proof for randomness generation in vertical-cavity surface-emitting laser.
This Thursday, Llorenç Escolà from QuSoft, UvA joined us to talk about “Quantum Position Verification: Loss and Entanglement.”
January 25, 2025 at 11:36 AM
This Thursday, Llorenç Escolà from QuSoft, UvA joined us to talk about “Quantum Position Verification: Loss and Entanglement.”
Huge congratulations to Martí Perarnau-LLobet, the newest member of GiQ! Recently arrived as a RyC fellow, won the Spanish Royal Physics Society Award for Young Researcher in Theoretical Physics and he just secured a 1M€ ATRAE project grant! Això se’n diu arribar i moldre, Martí. Felicitats🚀 👏 !
December 1, 2024 at 1:21 PM
Huge congratulations to Martí Perarnau-LLobet, the newest member of GiQ! Recently arrived as a RyC fellow, won the Spanish Royal Physics Society Award for Young Researcher in Theoretical Physics and he just secured a 1M€ ATRAE project grant! Això se’n diu arribar i moldre, Martí. Felicitats🚀 👏 !
Beyond IID in Information Theory is currently held at UIUC, but already things are being put in place for next year's edition, at Institute for Advanced Study (Technical University of Munich) #BeyondIID13 #BIID13 #BeyondIID12 #BIID12 @TU_Muenchen @ias_tum
November 17, 2024 at 7:15 PM
Beyond IID in Information Theory is currently held at UIUC, but already things are being put in place for next year's edition, at Institute for Advanced Study (Technical University of Munich) #BeyondIID13 #BIID13 #BeyondIID12 #BIID12 @TU_Muenchen @ias_tum
Seth Lloyd lecturing on Quantum Information Processing with Continuous Variables - showing that John von Neumann invented the quantum phase estimation algorithm. @IMAG_UGR @BIRS_Math
November 17, 2024 at 7:14 PM
Seth Lloyd lecturing on Quantum Information Processing with Continuous Variables - showing that John von Neumann invented the quantum phase estimation algorithm. @IMAG_UGR @BIRS_Math
Applications now open to join the𝗠𝗮𝘀𝘁𝗲𝗿'𝘀 𝗶𝗻 𝗤𝘂𝗮𝗻𝘁𝘂𝗺 𝗦𝗰𝗶𝗲𝗻𝗰𝗲 & 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝘆 @ Barcelona . Admissions on a rolling basis monthly, starting March. Register to the online info session on Feb 26th at 3pm at
November 17, 2024 at 7:14 PM
Applications now open to join the𝗠𝗮𝘀𝘁𝗲𝗿'𝘀 𝗶𝗻 𝗤𝘂𝗮𝗻𝘁𝘂𝗺 𝗦𝗰𝗶𝗲𝗻𝗰𝗲 & 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝘆 @ Barcelona . Admissions on a rolling basis monthly, starting March. Register to the online info session on Feb 26th at 3pm at
Yesterday, Matías Bilkis defended his PhD thesis “Decision-making in quantum environments: from model-free to model-aware learning of quantum controls” before R. Zambrani, Z. Holmes and G. Sentis. Felicidades Dr Bilkis ! Nice defense, awesome celebration 🥁🎻🥘🍾🎊!
November 17, 2024 at 7:14 PM
Yesterday, Matías Bilkis defended his PhD thesis “Decision-making in quantum environments: from model-free to model-aware learning of quantum controls” before R. Zambrani, Z. Holmes and G. Sentis. Felicidades Dr Bilkis ! Nice defense, awesome celebration 🥁🎻🥘🍾🎊!
New edition of “Bojos per la Física (Quàntica)” (Mad for Physics @PedreraCiencia) at GIQ
@UABBarcelona: intense morning learning quantum physics 101, public-key and quantum-key distribution, and Bell's test. Gràcies als 25 bojos i boges ⚛️! #WorldQuantumDay @DigiQMaster
@UABBarcelona: intense morning learning quantum physics 101, public-key and quantum-key distribution, and Bell's test. Gràcies als 25 bojos i boges ⚛️! #WorldQuantumDay @DigiQMaster
November 17, 2024 at 7:14 PM
New edition of “Bojos per la Física (Quàntica)” (Mad for Physics @PedreraCiencia) at GIQ
@UABBarcelona: intense morning learning quantum physics 101, public-key and quantum-key distribution, and Bell's test. Gràcies als 25 bojos i boges ⚛️! #WorldQuantumDay @DigiQMaster
@UABBarcelona: intense morning learning quantum physics 101, public-key and quantum-key distribution, and Bell's test. Gràcies als 25 bojos i boges ⚛️! #WorldQuantumDay @DigiQMaster
GIQ repudiates all forms of harassment and stands in solidarity with the victims. We are distressed by how UAB rector's office has handled recent cases occurring at our university. We must take action to create a safe and respectful environment for all.
November 17, 2024 at 7:14 PM
GIQ repudiates all forms of harassment and stands in solidarity with the victims. We are distressed by how UAB rector's office has handled recent cases occurring at our university. We must take action to create a safe and respectful environment for all.
Bravissimo Dr. Carlo Marconi! The world of quantum knows a ton more about the distinguished features of indistinguishable particles. PhD thesis successfully defended in front of the tribunal of Profs Chruscinski, Lewenstein and Bagan. Kudos also to his supervisor Prof Sanpera!
November 17, 2024 at 7:13 PM
Bravissimo Dr. Carlo Marconi! The world of quantum knows a ton more about the distinguished features of indistinguishable particles. PhD thesis successfully defended in front of the tribunal of Profs Chruscinski, Lewenstein and Bagan. Kudos also to his supervisor Prof Sanpera!
This week we had two visitors: M Rosati (ex-GIQui now @ Roma Tre U) and B Bergh (U of Cambridge). We enjoyed their talks ‘A learning theory for quantum photonic processors and beyond’ and ‘Parallel and Adaptive Quantum Channel Discrimination with Simple and Composite Hypotheses🎄
November 17, 2024 at 7:13 PM
This week we had two visitors: M Rosati (ex-GIQui now @ Roma Tre U) and B Bergh (U of Cambridge). We enjoyed their talks ‘A learning theory for quantum photonic processors and beyond’ and ‘Parallel and Adaptive Quantum Channel Discrimination with Simple and Composite Hypotheses🎄
Today Ilaria Svampa (joint PhD candidate Camerino U + UAB-GIQ) gave us a wonderful talk on p-adic quantum mechanics entitled “Towards p-adic quantum bits via representations of the p-adic group of rotations SO(3)ₚ”.
November 17, 2024 at 7:13 PM
Today Ilaria Svampa (joint PhD candidate Camerino U + UAB-GIQ) gave us a wonderful talk on p-adic quantum mechanics entitled “Towards p-adic quantum bits via representations of the p-adic group of rotations SO(3)ₚ”.
Dr. Paul Erker received (with some delay) the UAB PhD thesis award. Felicitats Pauli 🥳! Some of the work in this thesis was recently covered in this quantamagazine article:
November 17, 2024 at 7:13 PM
Dr. Paul Erker received (with some delay) the UAB PhD thesis award. Felicitats Pauli 🥳! Some of the work in this thesis was recently covered in this quantamagazine article:
More snapshots from Anna's memorable birthday celebration!
November 17, 2024 at 7:13 PM
More snapshots from Anna's memorable birthday celebration!
This week Zhen-Peng Xu (U of Siegen) visited GIQ, and gave the talk ‘Quantum networks cannot generate graph states with high fidelity’.
November 17, 2024 at 7:13 PM
This week Zhen-Peng Xu (U of Siegen) visited GIQ, and gave the talk ‘Quantum networks cannot generate graph states with high fidelity’.
Special day for the Master in Quantum Science & Technology in Barcelona: First cohort of graduates (@UniBarcelona, @UAB,@ICFOnians,@la_UPC,@IFAE,@QUANTIC_BSC )! Farewell to ready to fly Q-Masters and welcome to new promotion birds!
November 17, 2024 at 7:13 PM
Special day for the Master in Quantum Science & Technology in Barcelona: First cohort of graduates (@UniBarcelona, @UAB,@ICFOnians,@la_UPC,@IFAE,@QUANTIC_BSC )! Farewell to ready to fly Q-Masters and welcome to new promotion birds!
This week we had Paul Erker from IQOQI (Vienna) talking on ‘Measuring the thermodynamic cost of timekeeping”. Gracias por la visita Pauli!
November 17, 2024 at 7:13 PM
This week we had Paul Erker from IQOQI (Vienna) talking on ‘Measuring the thermodynamic cost of timekeeping”. Gracias por la visita Pauli!