Draft:Roman Orus

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Román Orús
BornJanuary 4, 1979
Barcelona
Nationality (legal)Spanish
EducationPhD in Physics
Alma materUniversidad de Barcelona
Employer(s)Multiverse Computing, Donostia International Physics Center
AwardsFuture Unicorn Award (Multiverse Computing, 2024), Top 100 most promising AI startup (Multiverse Computing, 2023), European Physical Society Early Career Prize (2014), Marie Curie IIF Award (2009), Honorable Mention in the Václav Votruba Prize (2008)
Websitewww.romanorus.com

Román Orús Lacort (Barcelona, 1979) is a Spanish theoretical physicist and entrepreneur. He is Ikerbasque Research Professor at the Donostia International Physics Center (DIPC), as well as co-founder and Chief Scientific Officer of Multiverse Computing.[1][2][3]

Academic Career[edit]

Román Orús studied physics at the University of Barcelona where he obtained his Ph.D. supervised by José Ignacio Latorre in 2006. Afterwards he worked as a research fellow at the University of Queensland (Brisbane, Australia) with Guifré Vidal, and at the Max Planck Institute of Quantum Optics (Garching, Germany) with Ignacio Cirac. He became Junior Professor of Condensed Matter Physics at the Johannes Gutenberg-Universität (Mainz, Germany) in 2013, and Ikerbasque Research Professor at DIPC (San Sebastián, Spain) in 2018, at the age of 38. He also held visiting professorships at CNRS (Toulouse, France) and DIPC.

Scientific Work[edit]

Orús' doctoral thesis was the first in Spain on quantum algorithms, connecting them with quantum phase transitions.[4] To date, he has published more than 100 scientific papers in Nature, Physical Review Letters and other journals, receiving thousands of citations.[5][6][7][8] During his time in Australia, he pioneered the use of infinite Projected Entangled Pair States to study two-dimensional quantum lattice systems in the thermodynamic limit with G. Vidal, I. Cirac, F. Verstraete and J. Jordan[9], including the proposal with G. Vidal of a directional corner transfer matrix approach.[10] In 2013 he wrote a review on tensor networks states [11] which has since received over 2,000 citations, as well as follow-up papers on the topic.[12][13] Orús also obtained results on quantum many-body entanglement, including the discovery with T.-Chieh Wei, O. Buerschaper and M. van den Nest of a topological correction in the geometric entanglement of topologically-ordered systems.[14][15] In 2018, he wrote an article with S. Mugel and E. Lizaso on the practical applications of quantum computing in finance [16] that demonstrates the potential impact of quantum computing in the financial industry which eventually led to the creation of Multiverse Computing.[17][18][19]

Orús has also made contributions at the crossover between physics and linguistics. For instance, he proposed the connection between language and renormalization [20], and introduced matrix models and vector spaces to describe syntax.[21] In cybersecurity,  Orús also developed examples of possible quantum cyberattacks for symmetric-key cryptographic protocols such as AES and Blowfish that could make those ciphers vulnerable using few-qubit quantum processors.[2]

Orús also was one of the first researchers to develop tensor networks to study high-dimensional quantum complex systems at the University of Queensland in 2006.[22] Later, he pioneered its application to industrial problems, for instance by using tensor networks for portfolio optimization using real-life data with a multinational bank.[23] With Multiverse, he also developed industrial applications of tensor networks for machine learning[24], and more recently, he used tensor networks to classically simulate kicked Ising experiments on quantum processors with more than 1,000 qubits[25], disproving claims on the hardness to simulate such experiments classically [19]. He has also recently used tensor networks to compress Large Language Models such as ChatGPT and LLaMA, reducing size while retaining most of the original accuracy to improve energy costs and efficiency.[26][27][3]

Awards[edit]

Orús has received several awards for his scientific work, including an Honorable Mention in the Václav Votruba Prize (2008), a Marie Curie Incoming International Fellowship (2009) and the Early Career Prize of the European Physical Society (2014), which he won alongside Ian Chapman.[28] With Multiverse Computing, Orús work was recognized by winning DIGITALEUROPE's Future Unicorn Award (2024) and CB Insights' Top 100 Most Promising AI Startup Recognition (2023).[29][30]

Business Career[edit]

In 2019, together with E. Lizaso, S. Mugel and A. Rubio, Orús co-founded Multiverse Computing focused on quantum and quantum-inspired software solutions. Multiverse incorporated as a company in 2019 in San Sebastián (Spain) with the support of DIPC, BIC-Gipuzkoa and local authorities.

With applications in finance, energy, healthcare, cybersecurity, logistics, and smart manufacturing, the company has been recognized for its intellectual property as a top 3 patent contributor in Spain.[31]

Orus’ work and commentary on AI and quantum computing have been broadly featured in the media.[32][33][34][35][36][37][38][39][1][2][3]

Other Activities[edit]

Orús is steering board member of the journal Quantum, editor of the journal Symmetry, a member of the Quantum for Quants commission of the Quantum World Association, partner at Entanglement Partners, member of the Scientific Committee of the Pedro Pasqual Benasque Center for Science (CCBPP), and former president of the Specialized Group on Quantum Information at the Spanish Royal Physics Society. Since 2012, he has also co-organized one of the leading conferences worldwide on strongly correlated systems at the CCBPP. He serves regularly as reviewer and advisor of several journals and institutions and is often involved in outreach activities.

Selected Academic Works[edit]

P Bermejo, R Orús, (August 2023). “Variational quantum and quantum-inspired clustering,” Scientific Reports 13 (1), 13284[40]

S Mugel, C Kuchkovsky, E Sanchez, S Fernandez-Lorenzo, J Luis-Hita, E Lizaso, R Orús, (January 2022). “Dynamic portfolio optimization with real datasets using quantum processors and quantum-inspired tensor networks,” Physical Review Research 4, 013006[41]

H Weimer, A Kshetrimayum, R Orús, (March 2021). “Simulation methods for open quantum many-body systems,” Reviews of Modern Physics 93, 015008[42]

R Orús, (August 2019). “Tensor networks for complex quantum systems,” Nature Reviews Physics 1, 538-550[13]

R Orús, S Mugel, E Lizaso, (November 2019). “Quantum computing for finance: Overview and prospects,” Reviews in Physics 4, 100028[16]

A Kshetrimayum, H Weimer, R Orús, (November 2017). “A simple tensor network algorithm for two-dimensional steady states,” Nature communications 8 (1), 1-7[43]

R Orús, (October 2014). “A practical introduction to tensor networks: Matrix product states and projected entangled pair states,” Annals of physics 349, 117-158, 2014[11]

P Corboz, R Orús, B Bauer, G Vidal, (April 2010) “Simulation of strongly correlated fermions in two dimensions with fermionic projected entangled-pair states,” Physical Review B 81 (16), 165104[44]

J Jordan, R Orús, G Vidal, F Verstraete, I Cirac, (December 2008). “Classical simulation of infinite-size quantum lattice systems in two spatial dimensions,”, Physical Review Letters 101 (25), 250602[9]

JI Latorre, R Orús, (June 2004). “Adiabatic quantum computation and quantum phase transitions,” Physical Review A 69 (6), 062302, 72[45]

See also[edit]

References[edit]

  1. ^ a b Orus, Roman (26 October 2022). "Román Orús". EE Times. Retrieved 18 April 2024.
  2. ^ a b c Vaughan, Jack (1 November 2021). "Multiverse Computing utilizes quantum tools for finance apps". VentureBeat. Retrieved 5 April 2024.
  3. ^ a b c O'Shea, Dan (7 March 2024). "Efficient". Inside Quantum Technology. Retrieved 5 April 2024.
  4. ^ Orus, Roman (1 August 2006). "Entanglement, quantum phase transitions and quantum algorithms". arXiv. Retrieved 4 April 2024.
  5. ^ Orus, Roman (16 August 2023). "Roman Orus Nature Portfolio". Nature. Retrieved 4 April 2024.
  6. ^ Orus, Roman (26 March 2024). "Roman Orus Publications". American Physical Society. Retrieved 4 April 2024.
  7. ^ Orus, Roman (24 March 2021). "Roman Orus, Ikerbasque Research Professor @ DIPC & CSO / Cofounder @ Multiverse Computing". Google Scholar. Retrieved 4 April 2024.
  8. ^ Orus, Roman (22 March 2024). "Roman Orus results". arXiv. Retrieved 4 April 2024.
  9. ^ a b Orus, Roman (2 October 2008). "Classical Simulation of Infinite-Size Quantum Lattice Systems in Two Spatial Dimensions". Physical Review Letters. Retrieved 4 April 2024.
  10. ^ Orus, Roman (20 May 2009). "Simulation of two-dimensional quantum systems on an infinite lattice revisited: Corner transfer matrix for tensor contraction". Physical Review B. Retrieved 4 April 2024.
  11. ^ a b Orus, Roman (1 October 2014). "A practical introduction to tensor networks: Matrix product states and projected entangled pair states". ScienceDirect. Retrieved 4 April 2024.
  12. ^ Orus, Roman (26 November 2014). "Advances on tensor network theory: symmetries, fermions, entanglement, and holography". The European Physical Journal B. Retrieved 4 April 2024.
  13. ^ a b Orus, Roman (5 August 2019). "Tensor networks for complex quantum systems". Nature Physics. Retrieved 4 April 2024.
  14. ^ Orus, Roman (13 January 2014). "Geometric entanglement in topologically ordered states". New Journal of Physics. Retrieved 5 April 2024.
  15. ^ Orus, Roman (19 December 2014). "Topological Transitions from Multipartite Entanglement with Tensor Networks: A Procedure for Sharper and Faster Characterization". Physical Review Letters. Retrieved 5 April 2024.
  16. ^ a b Orus, Roman (1 November 2019). "Quantum computing for finance: Overview and prospects". Reviews in Physics. Retrieved 5 April 2024.
  17. ^ Lacan, Francis (September 2020). "Getting your financial institution ready for the quantum computing revolution". IBM. Retrieved 5 April 2024.
  18. ^ Bobier, Jean-Francois (16 October 2020). "It's Time for Financial Institutions to Place Their Quantum Bets". BCG. Retrieved 5 April 2024.
  19. ^ Dietz, Miklos (December 2020). "How quantum computing could change financial services" (PDF). McKinsey & Company. Retrieved 5 April 2024.
  20. ^ Orus, Roman (21 January 2022). "Language Design as Information Renormalization". Springer. Retrieved 5 April 2024.
  21. ^ Orus, Roman (1 October 2017). "Mathematical foundations of matrix syntax". arXiv. Retrieved 5 April 2024.
  22. ^ Orus, Roman (10 October 2007). "Ground State Fidelity from Tensor Network Representations". Physical Review Letters. Retrieved 5 April 2024.
  23. ^ Orus, Roman (6 November 2023). "Hacking Cryptographic Protocols with Advanced Variational Quantum Attacks". arXiv. Retrieved 5 April 2024.
  24. ^ Orus, Roman (18 April 2023). "Application of Tensor Neural Networks to Pricing Bermudan Swaptions". arXiv. Retrieved 5 April 2024.
  25. ^ Orus, Roman (27 September 2023). "Efficient tensor network simulation of IBM's largest quantum processors". arXiv. Retrieved 5 April 2024.
  26. ^ Lunden, Ingrid (4 March 2024). "Efficient". TechCrunch. Retrieved 5 April 2024.
  27. ^ Orus, Roman (25 January 2024). "CompactifAI: Extreme Compression of Large Language Models using Quantum-Inspired Tensor Networks" (PDF). arXiv. Retrieved 5 April 2024.
  28. ^ Orus, Roman (10 October 2014). "Román Orús awarded 2014 EPS Early Career Prize of the European Physical Society". University of Mainz. Retrieved 5 April 2024.
  29. ^ Donovan, Bret (19 January 2024). "Multiverse Computing Shortlisted for 'Future Unicorn' Status Among Europe's Top Tech Scale-ups". Quantum Zeitgeist. Retrieved 5 April 2024.
  30. ^ "AI 100: The most promising artificial intelligence startups of 2023". CB Insights. 20 June 2023. Retrieved 5 April 2024.
  31. ^ Mallol, Eugenio (5 April 2023). "The Multiverse phenomenon: software accelerates in patents". University. Retrieved 8 April 2024.
  32. ^ Swayne, Matt (30 December 2023). "Looking Back, Looking Ahead: Quantum Experts Reflect On 2023, Peer Into 2024". The Quantum Insider. Retrieved 8 April 2024.
  33. ^ Mujika, Mikel (25 March 2023). "Advances in Artificial Intelligence have caught even us by surprise, and they're going to get even better with quantum". Noticias de Gipuzkoa. Retrieved 8 April 2024.
  34. ^ Mujika, Mikel (25 March 2023). "Six keys to understand the role of IBM's quantum computer in Gipuzkoa". Noticias de Gipuzkoa. Retrieved 8 April 2024.
  35. ^ Lovati, Stefano (17 April 2023). "'Quantum Calculator' Algorithm Tackles Optimization Problems". EE Times Europe. Retrieved 8 April 2024.
  36. ^ Baker, Berenice (14 December 2022). "Advanced Mathematical Tool Created for Quantum Computers". IoT World Today. Retrieved 8 April 2024.
  37. ^ Morrison, Ryan (15 December 2022). "Multiverse creates quantum calculator for optimization issues". Tech Monitor. Retrieved 8 April 2024.
  38. ^ "Multiverse Computing and IKERLAN detect defects in manufacturing with quantum computing vision". Automation Magazine UK. 17 August 2022. Retrieved 8 April 2024.
  39. ^ Miravalls, Julio (28 March 2023). "Spanish patents, "stable" against a backdrop of innovation growth in Europe in 2022". El Espanol. Retrieved 8 April 2024.
  40. ^ Orus, Roman (16 August 2023). "Variational quantum and quantum-inspired clustering". Nature. Retrieved 18 April 2024.
  41. ^ Orus, Roman (3 January 2022). "Dynamic portfolio optimization with real datasets using quantum processors and quantum-inspired tensor networks". Physical Review Research. Retrieved 18 April 2024.
  42. ^ Orus, Roman (24 March 2021). "Simulation methods for open quantum many-body systems". APS Reviews of Modern Physics. Retrieved 18 April 2024.
  43. ^ Orus, Roman (3 November 2017). "A simple tensor network algorithm for two-dimensional steady states". Nature. Retrieved 18 April 2024.
  44. ^ Orus, Roman (8 April 2010). "Simulation of strongly correlated fermions in two spatial dimensions with fermionic projected entangled-pair states". APS. Retrieved 18 April 2024.
  45. ^ Orus, Roman (2 June 2004). "Adiabatic quantum computation and quantum phase transitions". Physical Review A. Retrieved 18 April 2024.

External Links[edit]

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