Quantum Technologies and IP Services

Dr. Sebastian Schmidt

Sebastian Schmidt is the Founder of the Patent Law Firm Quantum IP. As a trained physicist and patent attorney he maintains a special interest in emerging technologies such as quantum technologies, neuromorphic computing and artificial intelligence. Sebastian received his Diploma in Physics from the Free University of Berlin in 2003, completed his Ph.D. at Yale University in 2008, and spent a semester as a visiting fellow at the Princeton Center for Theoretical Science (PCTS) in 2010, before becoming a group leader and senior lecturer at the Swiss Federal Institute of Technology in Zurich (ETH) from 2012 to 2018. His broad research experience ranges from mesoscopic, condensed matter and many-body physics to quantum optics and quantum electronics.

Google scholar (link)

Research

Scientific Collaborations (selected)

Teaching

2016

Spring Semester

Theory of Circuit Quantum Electrodynamics (2+1 SWS)

2015

Spring Semester

Many-Body Physics with strongly correlated photons (2+1 SWS)

Presentations

more than 50 invited talks at international conferences and workshops, university colloquia and research seminars.

Publications

2018

• M. Roth, N. Moll, G. Salis, M. Ganzhorn, D. J. Egger, S. Filipp, and S. Schmidt
  Adiabatic quantum simulations with driven superconducting qubits
  Phys. Rev. A 99, 022323 (2019)
  


• M. Biondi, G. Blatter, and S. Schmidt
  Emergent light crystal from frustration and pump engineering
  Phys. Rev. B 98, 104204 (2018)
  


• M. Biondi, S. Lienhard, G. Blatter and S. Schmidt
  Quantum stabilization of photonic spatial correlations
  Physica Scripta 94, 024001 (2019)
  

2017

• M. Roth, M. Ganzhorn, N. Moll, S. Filipp, G. Salis, and S. Schmidt
  Analysis of parametrically driven exchange-type (iSWAP) and two-photon (bSWAP) interactions between superconducting qubits
  Phys. Rev. A 96, 062323 (2017)
  


• M. Biondi, G. Blatter, H. Tureci, and S. Schmidt
  Nonequilibrium gas-liquid transition in the driven-dissipative photonic lattice
  Phys. Rev. A 96, 043809 (2017)
  


• M. Biondi, S.Lienhard, G. Blatter, H. Tureci, and S. Schmidt
  Spatial correlations in driven, dissipative photonic lattices
  New J. Phys., 19, 125016 (2017)
  


• S. Schmidt and G. Blatter
  Phase diagram and excitations of the Jaynes-Cummings-Hubbard model
  Book chapter in "Quantum Simulations with Photons and Polaritons: Merging Quantum Optics with Condensed Matter Physics"
  Quantum Science and Technology Series, Springer (2017)
  

2016

• Y. L. Dong, T. Neupert, R. Chitra, and S. Schmidt
  Signatures of topological quantum phase transitions in driven and dissipative qubit-arrays
  Phys. Rev. B 94, 035441 (2016)
  


• S. Schmidt
  Viewpoint: A Bird`s Eye View of Circuit Photons
  Physics 9, 74 (2016)
  


• S. Schmidt
  Frustrated Polaritons
  Physica Scripta 91, 7 (2016)
  Focus issue on Quantum Optics in the International Year of Light
  


• F. Baboux, L. Ge, T. Jacqmin, M. Biondi, A. Lemaitre, L. Le Gratiet, I. Sagnes, S. Schmidt, H. E. Tureci, A. Amo, and J. Bloch
  Bosonic condensation and disorder-induced localization in a flat energy band
  Phys. Rev. Lett. 116, 066402 (2016)
  

2015

• M. Biondi, E. van Nieuwenburg, G. Blatter, S. Huber, and S. Schmidt
  Incompressible polaritons in a flat band
  Phys. Rev. Lett. 115, 143601 (2015)
  


• D. Oehri, M. Pletyukhov, V. Gritsev, G. Blatter, and S. Schmidt
  A tunable nonlinear Hong-Ou-Mandel interferometer
  Phys. Rev. A 91, 033816 (2015)
  


• S. Schmidt
  Many-body physics with strongly correlated photons
  Habilitation Thesis, ETH Zurich (2015)
  

2014

• C. Eichler, Y. Salathe, J. Mlynek, S.Schmidt, and A. Wallraff
  Quantum limited amplification and entanglement in coupled nonlinear resonators
  Phys. Rev. Lett. 113, 110502 (2014)
  


• J. Raftery, D. Sadri S. Schmidt, H. Tureci, and A. A. Houck
  Observation of a dissipation-induced classical to quantum transition
  Phys. Rev. X 4, 031043 (2014)
  


• M. Biondi, S. Schmidt, G. Blatter, H. Tureci
  Self-protected polariton states in photonic quantum metamaterials
  Phys. Rev. A 89, 025801 (2014)
  

2013

• G. Zhu, S. Schmidt, and J. Koch
  Dispersive regime of the Jaynes-Cummings and Rabi lattice
  New Journal of Physics 15, 115002 (2013)
  


• S. Schmidt, G. Blatter, and J. Keeling
  From the Jaynes-Cummings-Hubbard to the Dicke model
  J. Phys. B: At.Mo.Opt.Phys. 46, 224020 (2013)
  


• S. Schmidt and J. Koch
  Circuit QED lattices: Towards Quantum simulation with superconducting qubits
  Annalen der Physik 525, 395 (2013)
  

2012

• F. Nissen, S. Schmidt, M. Biondi, G. Blatter, H. Tureci, and J. Keeling
  Non-equilibrium dynamics of coupled qubit-cavity arrays
  Phys. Rev. Lett. 108, 233603 (2012)
  


• M. Hohenadler, M. Aichhorn, L. Pollet, and S. Schmidt
  Polariton Mott insulator with trapped ions or circuit QED
  Phys. Rev. A 85, 013801 (2012)
  


• Y. Alhassid, K. N. Nesterov, and S. Schmidt
  The coexistence of superconductivity and ferromagnetism in nano-scale metallic grains
  Phys. Scr. T 151, 014047 (2012)

2011

• A. J. Hoffman, S. J. Srinivasan, S. Schmidt, L. Spietz, J. Aumentado, H. E. Tureci, A. A. Houck
  Dispersive photon blockade in a superconducting circuit
  Phys. Rev. Lett. 107, 053602 (2011)
  


• M. Hohenadler, M. Aichhorn, S. Schmidt, and L. Pollet
  Dynamical critical exponent of the Jaynes-Cummings-Hubbard model
  Phys. Rev. A (Rapid) 84, 041608 (2011)
  

2010

• S. Schmidt and G. Blatter
  Excitations of strongly correlated lattice polaritons
  Phys. Rev. Lett. 104, 216402 (2010)
  


• S. Schmidt, D. Gerace, A. A. Houck, G. Blatter, and H. E. Tureci
  Non-equilibrium delocalization-localization transition of photons in circuit QED
  Phys. Rev. B (Rapid) 82, 100507 (2010)
  


• K. Van Houcke, Y. Alhassid, S. Schmidt, and S. Rombouts
  The competition between superconductivity and ferromagnetism in small metallic grains: thermodynamics
  eprint: arXiv:1011.5421 (2010)
  

2009

• S. Schmidt and G. Blatter
  Strong-coupling theory for the Jaynes-Cummings-Hubbard model
  Phys. Rev. Lett. 103, 086403 (2009)
  


• S. Schmidt and Y. Alhassid
  Mesoscopic interplay of superconductivity and ferromagnetism in ultra-small metallic grains,
  "Complex Phenomena in Nanoscale Systems" (Editors: G. Casati and D. Matrasulov)
  NATO Science for Peace and Security Series B: Physics and Biophysics, 25, Springer, The Netherlands (2009)
  

2008

• S. Schmidt and Y. Alhassid
  Mesoscopic competition of superconductivity and ferromagnetism: conductance statistics in metallic grains
  Phys. Rev. Lett. 101, 207003 (2008)
  


• S. Schmidt
  Electron interactions in chaotic metallic grains
  Ph.D. Thesis, Yale University (2008)
  

before 2008

• S. Schmidt, Y. Alhassid, and K. v. Houcke
  Effect of a Zeeman field on the transition from superconductivity to ferromagnetism in metallic grains
  Europhys. Lett. 80, 47004 (2007)
  


• Y. Alhassid, L. Fang, and S. Schmidt
  Thermodynamics of ultra-small metallic grains in the auxiliary-field Monte Carlo approach
  eprint: cond-mat/0702304 (2007)
  


• H. Kleinert, S. Schmidt, and A. Pelster
  Quantum phase diagram for homogeneous Bose Einstein condensate
  Ann. Phys. (Leipzig) 14, 214 (2005)
  


• H. Kleinert, S. Schmidt, and A. Pelster
  Reentrant phenomenon in the quantum phase transitions of a gas of Bosons trapped in an optical lattice
  Phys. Rev. Lett. 93, 160402 (2003)
  


• S. Schmidt
  Thermal Field theory for ultra-cold atoms
  Diploma Thesis, Free University of Berlin (2003)