Tom O'Brien
Assistant professor
- Name
- Dr. T.E. O'Brien
- Telephone
- +31 71 527 5568
- obrien@lorentz.leidenuniv.nl
Assistant professor
- Science
- Leiden Instituut Onderzoek Natuurkunde
- LION - Theoretical Physics
- O'Brien T.E., Anselmetti G., Gkritsis F., Elfving V.E. Polla S. & Huggins W.J. (2023), Purification-based quantum error mitigation of pair-correlated electron simulations, Nature Physics 19: 1787–1792.
- Bonet-Monroig X., Wang H., Vermetten D.L., Senjean B., Moussa C., Bäck T.H.W., Dunjko V. & O'Brien T.E. (2023), Performance comparison of optimization methods on variational quantum algorithms, Physical Review A 107(3): 032407.
- Polla S., Anselmetti G.R. & O'Brien T.E. (2023), Optimizing the information extracted by a single qubit measurement, Physical Review A 108(1): 012403.
- Dutkiewicz A., Terhal B.M. & O'Brien T.E. (2022), Heisenberg-limited quantum phase estimation of multiple eigenvalues with few control qubits, Quantum 6: 830.
- Huggins W.J., McArdle S., O'Brien T.E., Lee J., Rubin N.C., Boixo S., Whaley K.B., Babbush R. & McClean J.R. (2021), Virtual distillation for quantum error mitigation, Physical Review X 11(4): 041036.
- Koridon E., Yalouz S., Senjean B., Buda F., O’Brien T. E. & Visscher L. (2021), Orbital transformations to reduce the 1-norm of the electronic structure Hamiltonian for quantum computing applications, Physical Review Research 3(3): 033127.
- Yalouz S., Senjean B., Günther J., Buda F., O'Brien T.E. & Visscher L. (2021), A state-averaged orbital-optimized hybrid quantum–classical algorithm for a democratic description of ground and excited states, Quantum Science and Technology 6(2): 024004.
- O'Brien T.E., Polla S., Rubin N.C., Huggins W.J., McArdle S., Boixo S., McClean J.R. & Babbush R. (2021), Error mitigation via verified phase estimation, PRX Quantum 2: 020317.
- Pollo S., Herasymenko Y. & O'Brien T.E. (2021), Quantum digital cooling, Physical Review A 104(1): 012414.
- Bultink C.C., O’Brien T.E., Vollmer R., Muthusubramanian N., Beekman M.W., Rol M.A., Fu X., Tarasinski B.M., Ostroukh V., Varbanov B., Bruno A. & DiCarlo L. (2020), Protecting quantum entanglement from leakage and qubit errors via repetitive parity measurements, Science Advances 6(12): eaay3050.
- McClean J.R., Rubin N.C., Sung K.J., Kivlichan I.D, Bonet-Monroig X., CaoY., Dai C., Schuyler F.E., Gidney C., Gimby B., Gokhale P., Häner T., Hardikar T., Havlíček V., Higgott O., Huang C., Izaac J., Jiang Z., Liu X., McArdle S., Neeley M., O'Brien T.E., O'Gorman B., Ozfidan I., Radin M.D., Romero J., Sawaya N.P.D., Senjean B., Setia K., Sim S., Steiger D.S., Steudtner M., Sun Q., Sun W., Wang D.C., Zhang F. & Babbush R. (2020), OpenFermion: the electronic structure package for quantum computers, Quantum Science and Technology 5: 034014.
- Bonet-Monroig X., Babbush R. & O’Brien T.E. (2020), Nearly Optimal Measurement Scheduling for Partial Tomography of Quantum States, Physical Review X 10(3): 031064.
- Baireuther P., Caio M.D., Criger B., Beenakker C.W.J. & O'Brien T.E. (2019), Neural network decoder for topological color codes with circuit level noise, New Journal of Physics 21: 013003.
- O'Brien T.E. (20 June 2019), Applications of topology to Weyl semimetals and quantum computing (Dissertatie. Instituut-Lorentz, Science, Leiden). Supervisor(s) and Co-supervisor(s): Beenakker C.W.J. & DiCarlo L., Adagideli L.
- O'Brien T.E., Senjean B., Sagastizabal R., Bonet-Monroig X., Dutkiewicz A., Buda F., DiCarlo L. & Visscher L. (2019), Calculating energy derivatives for quantum chemistry on a quantum computer, npj Quantum Information 5: 113.
- Sagastizabal R., Bonet-Monroig X., Singh M., Rol M.A., Bultink C.C., Fu X., Price C.H., Ostroukh V.P., Muthusubramanian N., Bruno A., Beekman M., Haider N., O'Brien T.E. & DiCarlo L. (2019), Experimental error mitigation via symmetry verification in a variational quantum eigensolver, Physical Review A 100(1): 010302.
- O'Brien T.E., Tarasinski B. & Terhal B.M. (2019), Quantum phase estimation of multiple eigenvalues for small-scale (noisy) experiments, New Journal of Physics 21: 023022.
- Spitz S.T., Tarasinski B., Beenakker C.W.J. & O'Brien T.E. (2018), Adaptive weight estimator for quantum error correction in a time-dependent environment, Advanced Quantum Technologies 1(1): 1800012.
- Bovenzi N., Breitkreiz M., O'Brien T.E., Tworzydlo J. & Beenakker C.W.J. (2018), Twisted Fermi surface of a thin-film Weyl semimetal, New Journal of Physics 20: 023023.
- Baireuther P., O'Brien T.E., Tarasinski B.M. & Beenakker C.W.J. (2018), Machine-learning-assisted correction of correlated qubit errors in a topological code, Quantum 2: 48.
- Bonet-Monroig X., Sagastizabal R., Singh M. & O'Brien T.E. (2018), Low-cost error mitigation by symmetry verification, Physical Review A 98(6): 062339.
- O’Brien T.E., Rożek P. & Akhmerov A.R. (2018), Majorana-Based Fermionic Quantum Computation, Physical Review Letters 120(22): 220504.
- Bovenzi N., Breitkreiz M., Baireuther P.S., O'Brien T.E., Tworzydlo J., Adagedeli I. & Beenakker C.W.J. (2017), Chirality blockade of Andreev reflection in a magnetic Weyl semimetal, Physical Review B 96(3): 035437.
- O'Brien T.E., Beenakker C.W.J. & Adagideli I. (2017), Superconductivity provides access to the chiral magnetic effect of an unpaired Weyl cone, Physical Review Letters 118: 207701.
- Rol M.A., Bultink C.C., O'Brien T.E., Jong S.R. de, Theis L.S., Fu X., Luthi F., Vermeulen R.F.L., Sterke J.C. de, Bruno A., Deurloo D., Schouten R.N., Wilhelm F.K. & DiCarlo L. (2017), Restless tuneup of high-fidelity qubit gates, Physical Review Applied 7: 041001.
- O'Brien T.E., Tarasinski B.M. & DiCarlo L. (2017), Density-matrix simulation of small surface codes under current and projected experimental noise, npj Quantum Information 3: 39.
- O'Brien T.E., Diez M. & Beenakker C.W.J. (2016), Magnetic breakdown and Klein tunneling in a type-II Weyl semimetal, Physical Review Letters 116(23): 236401.
- O'Brien T.E., Abanin D.A., Vidal G. & Papic Z. (2016), Explicit construction of local conserved operators in disordered many-body systems, Physical Review B: Condensed Matter 94: 144208.
- Bultink C.C., Rol M.A., O'Brien T.E., Fu X., Dikken B.C.S., Dickel C., Vermeulen R.F.L., Sterke J.C. de, Bruno A., Schouten R.N. & DiCarlo L. (2016), Active resonator reset in the nonlinear dispersive regime of circuit QED, Physical Review Applied 6: 034008.