Stijn De Baerdemacker

Publications

A1 publications

Published

2018

[A1 Publication] Method for making 2-electron response reduced density matrices approximately N-representable

Authors

Lanssens C.; Ayers P. W.; Van Neck D.; De Baerdemacker S.; Gunst K.; Bultinck P.

Journal of Chemical Physics 2018.

https://doi.org/10.1063/1.4994618

2017

[A1 Publication] Variational method for integrability-breaking Richardson-Gaudin models

Authors

Claeys P.; Caux J.-S.; Van Neck D.; De Baerdemacker S.

Physical Review B 2017.

http://dx.doi.org/10.1103/PhysRevB.96.155149

[A1 Publication] Inner products in integrable Richardson-Gaudin models

Authors

Claeys P.; Van Neck D.; De Baerdemacker S.

SciPost Physics 2017.

http://dx.doi.org/10.21468/SciPostPhys.3.4.028

[A1 Publication] Block product density matrix embedding theory for strongly correlated spin systems

Authors

Gunst K.; Wouters S.; De Baerdemacker S.; Van Neck D.

Physical Review B 2017.

https://doi.org/10.1103/PhysRevB.95.195127

2016

[A1 Publication] Block-ZXZ synthesis of an arbitrary quantum circuit

Authors

De Vos A. (Alexis); De Baerdemacker S.

Physical Review A 2016.

http://dx.doi.org/10.1103/PhysRevA.94.052317

[A1 Publication] The Birkhoff theorem for unitary matrices of arbitrary dimensions

Authors

De Baerdemacker S.; De Vos A. (Alexis); Chen L.; Yu L.

Linear Algebra and its Applications 2016.

http://dx.doi.org/10.1016/j.laa.2016.10.028

[A1 Publication] Read-Green resonances in a topological superconductor coupled to a bath

Authors

Claeys P.; De Baerdemacker S.; Van Neck D.

Physical Review B 2016. 93(22): 220503. IF: 3.836 18/67 [Q2]

http://dx.doi.org/10.1103/PhysRevB.93.220503

[A1 Publication] Maximum probability domains for Hubbard models

Authors

Acke G.; De Baerdemacker S.; Claeys P.; Van Raemdonck M.; Poelmans W.; Van Neck D.; Bultinck P.

Molecular Physics 2016.

http://dx.doi.org/10.1080/00268976.2016.1153742

[A1 Publication] The Birkhoff theorem for unitary matrices of prime dimension

Authors

De Vos A. (Alexis); De Baerdemacker S.

Linear Algebra and its Applications 2016. 493(2016): 455-468.

http://dx.doi.org/10.1016/j.laa.2015.12.005

2015

[A1 Publication] Eigenvalue-based determinants for scalar products and form factors in Richardson–Gaudin integrable models coupled to a bosonic mode

Authors

Claeys P.; De Baerdemacker S.; Van Raemdonck M.; Van Neck D.

Journal of Physics A: Mathematical and Theoretical 2015. 48(42): 425201.

http://dx.doi.org/10.1088/1751-8113/48/42/425201

[A1 Publication] Variational optimization of the second order density matrix corresponding to a seniority-zero configuration interaction wave function

Authors

Poelmans W.; Van Raemdonck M.; Verstichel B.; De Baerdemacker S.; Torre A.; Lain L.; Massaccesi G.; Alcoba D.; Bultinck P.; Van Neck D.

Journal of Chemical Theory and Computation 2015. 11(9): 4064 - 4076.

http://dx.doi.org/10.1021/acs.jctc.5b00378

[A1 Publication] Polynomial scaling approximations and Dynamic Correlation Corrections to Doubly Occupied Configuration Interaction wave functions

Authors

Van Raemdonck M.; Alcoba D.; Poelmans W.; De Baerdemacker S.; Torre A.; Lain L.; Massaccesi G.; Van Neck D.; Bultinck P.

Journal of Chemical Physics 2015. 143(10): 104106.

http://dx.doi.org/10.1063/1.4930260

[A1 Publication] Variational optimization of the second order density matrix derived from a seniority-zero wave function

Authors

Poelmans W.; Van Raemdonck M.; Verstichel B.; De Baerdemacker S.; Torre A.; Lain L.; Massaccesi G.; Alcoba D.; Bultinck P.; Van Neck D.

Journal of Chemical Theory and Computation 2015. 11(9): 4064 - 4076. IF: 5.301 5/35 [Q1]

http://dx.doi.org/acs.jctc.5b00378

[A1 Publication] Eigenvalue-based method and form-factor determinant representations for integrable XXZ Richardson-Gaudin models

Authors

Claeys P.; De Baerdemacker S.; Van Raemdonck M.; Van Neck D.

Physical Review B 2015. 91(15): 155102.

http://dx.doi.org/10.1103/PhysRevB.91.155102

[A1 Publication] CheMPS2: Improved DMRG-SCF routine and correlation functions

Authors

Wouters S.; Poelmans W.; De Baerdemacker S.; Ayers P. W.; Van Neck D.

Computer Physics Communications 2015.

http://dx.doi.org/10.1016/j.cpc.2015.01.007

2014

[A1 Publication] Scaling a Unitary Matrix

Authors

De Vos A. (Alexis); De Baerdemacker S.

Open Systems & Information Dynamics 2014. 21(4): 1450013.

http://dx.doi.org/10.1142/S1230161214500139

[A1 Publication] Matrix Calculus for Classical and Quantum Circuits

Authors

De Vos A. (Alexis); De Baerdemacker S.

ACM Journal on Emerging Technologies in Computing Systems 2014. 11(2): 9.

http://dx.doi.org/10.1145/2669370

[A1 Publication] Non-Variational Orbital Optimization Techniques for the AP1roG Wave Function

Authors

Boguslawski K.; Tecmer P.; Ayers P. W.; Bultinck P.; De Baerdemacker S.; Van Neck D.

Journal of Chemical Theory and Computation 2014. 10(11): 4873-4882.

http://dx.doi.org/10.1021/ct500759q

[A1 Publication] Quasi-1D physics in Metal-Organic Frameworks: MIL-47(V) from first principles

Authors

Vanpoucke D. E. P.; Jaeken J.; De Baerdemacker S.; Lejaeghere K.; Van Speybroeck V.

Beilstein Journal of Nanotechnology 2014. 5: 1738 - 1748. IF: 2.670 53/260 [Q1]

http://dx.doi.org/10.3762/bjnano.5.184

[A1 Publication] Projected seniority-two orbital optimization of the antisymmetric product of one-reference orbital geminal

Authors

Boguslawski K.; Tecmer P.; Limacher P. A.; Johnson P. A.; Ayers P. W.; Bultinck P.; De Baerdemacker S.; Van Neck D.

Journal of Chemical Physics 2014. 140(21): 214114.

[A1 Publication] Efficient description of strongly correlated electrons with mean-field cost

Authors

Boguslawski K.; Tecmer P.; Ayers P. W.; Bultinck P.; De Baerdemacker S.; Van Neck D.

Physical Review B 2014. 89(20): 201106.

http://dx.doi.org/10.1103/PhysRevB.89.201106

[A1 Publication] Simple and inexpensive perturbative correction schemes for antisymmetric products of nonorthogonal geminals

Authors

Limacher P. A.; Ayers P. W.; Johnson P. A.; De Baerdemacker S.; Van Neck D.; Bultinck P.

Physical Chemistry Chemical Physics 2014. (16): 11.

http://dx.doi.org/10.1039/c3cp53301h

[A1 Publication] Exact solution of the p(x) + ip(y) pairing Hamiltonian by deforming the pairing algebra

Authors

Van Raemdonck M.; De Baerdemacker S.; Van Neck D.

Physical Review B 2014.

http://dx.doi.org/10.1103/PhysRevB.89.155136

[A1 Publication] Variational optimization of the 2DM: approaching three-index accuracy using extended cluster constraints

Authors

Verstichel B.; Poelmans W.; De Baerdemacker S.; Wouters S.; Van Neck D.

European Physical Journal B 2014. 87(3): 59.

http://dx.doi.org/10.1140/epjb/e2014-40788-x

[A1 Publication] The influence of orbital rotation on the energy of closed-shell wavefunctions

Authors

Limacher P. A.; Kim T. D.; Ayers P. W.; Johnson P. A.; De Baerdemacker S.; Van Neck D.; Bultinck P.

Molecular Physics 2014.

http://dx.doi.org/10.1080/00268976.2013.874600

2013

[A1 Publication] The NEGATOR as a Basic Building Block for Quantum Circuits

Authors

De Vos A. (Alexis); De Baerdemacker S.

Open Systems & Information Dynamics 2013. 20(1): 1350004.

http://dx.doi.org/10.1142/S1230161213500042

[A1 Publication] A New Mean-Field Method Suitable for Strongly Correlated Electrons: Computationally Facile Antisymmetric Products of Nonorthogonal Geminals

Authors

Limacher P. A.; Ayers P. W.; De Baerdemacker S.; Van Neck D.; Bultinck P.

Journal of Chemical Theory and Computation 2013. 9(3): 1394-1401.

http://dx.doi.org/10.1021/ct300902c

[A1 Publication] Perturbations on the superconducting state of metallic nanoparticles: influence of geometry and impurities

Authors

Van Raemdonck M.; De Baerdemacker S.; Van Neck D.

European Physical Journal D 2013. 67(2013): 14.

http://dx.doi.org/10.1140/epjd/e2012-30543-0

[A1 Publication] A size-consistent approach to strongly correlated systems using a generalized antisymmetrized product of nonorthogonal geminals

Authors

Johnson P. A.; Ayers P. W.; Limacher P. A.; De Baerdemacker S.; Van Neck D.; Bultinck P.

Computational and Theoretical Chemistry 2013. 1003(2013): 101-113.

http://dx.doi.org/10.1016/j.comptc.2012.09.030

2012

[A1 Publication] Reversible Computation, Quantum Computation, and Computer Architectures in Between

Authors

De Vos A. (Alexis); Boes M.; De Baerdemacker S.

Journal of Multiple-Valued Logic and Soft Computing 2012.

http://dx.doi.org/

[A1 Publication] Richardson-Gaudin integrability in the contraction limit of the quasispin

Authors

De Baerdemacker S.

Physical Review C 2012. 86(4): 044332.

http://dx.doi.org/10.1103/PhysRevC.86.044332

2011

[A1 Publication] The Tamm-Dancoff Approximation as the boson limit of the Richardson-Gaudin equations for pairing

Authors

De Baerdemacker S.

Journal of Physics: Conference series 2011.

http://dx.doi.org/10.1088/1742-6596/284/1/012020

[A1 Publication] A primal-dual semidefinite programming algorithm tailored to the variational determination of the two-body density matrix

Authors

Verstichel B.; van Aggelen H.; Van Neck D.; Bultinck P.; De Baerdemacker S.

Computer Physics Communications 2011. 182(6): 1235-1244.

http://dx.doi.org/10.1016/j.cpc.2011.02.005

2010

[A1 Publication] Decomposition of a Linear Reversible Computer: Digital Versus Analog

Authors

De Vos A. (Alexis); De Baerdemacker S.

International Journal of Unconventional Computing 2010.

http://dx.doi.org/

2009

[A1 Publication] Collective Structures Within the Cartan-Weyl Based Geometrical Model

Authors

De Baerdemacker S.; Heyde K.; Hellemans V.

AIP Conference Proceedings 2009.

http://dx.doi.org/

[A1 Publication] Criticality in the configuration-mixed interacting boson model: (2) Q(X1)Q(X2)-Q(X2)Q(X2) mixing

Authors

Hellemans V.; Van Isacker P.; De Baerdemacker S.; Heyde K.

Nuclear Physics A 2009.

http://dx.doi.org/10.1016/j.nuclphysa.2009.01.002

[A1 Publication] Spectral properties of a tractable collective Hamiltonian

Authors

De Baerdemacker S.; Heyde K.; Hellemans V.

Physical Review C 2009. 79(3): 034305.

http://dx.doi.org/10.1103/PhysRevC.79.034305

2008

[A1 Publication] Configuration mixing in the neutron-deficient 186-196Pb isotopes

Authors

Hellemans V.; De Baerdemacker S.; Heyde K.

Physical Review C 2008. 77(6): 064324.

http://dx.doi.org/10.1103/PhysRevC.77.064324

[A1 Publication] The quadrupole collective model from a Cartan–Weyl perspective

Authors

De Baerdemacker S.; Heyde K.; Hellemans V.

Journal of Physics A: Mathematical and Theoretical 2008. 41(30): 304039.

http://dx.doi.org/10.1088/1751-8113/41/30/304039

2007

[A1 Publication] Phase transitions in the configuration mixed interacting boson model: U(5)-O(6) mixing

Authors

Hellemans V.; Van Isacker P.; De Baerdemacker S.; Heyde K.

Acta Physica Polonica B 2007. 38(4): 1599-1603.

http://dx.doi.org/

[A1 Publication] Quadrupole collective variables in the natural Cartan–Weyl basis

Authors

De Baerdemacker S.; Heyde K.; Hellemans V.

Journal of Physics A: Mathematical and Theoretical 2007. 40(11): 2733.

http://dx.doi.org/10.1088/1751-8113/40/11/009

[A1 Publication] Criticality in the configuration-mixed interacting boson model: (1) U(5)-(Q)over-cap(chi)-(Q)over-cap (chi) mixing

Authors

Hellemans V.; Van Isacker P.; De Baerdemacker S.; Heyde K.

Nuclear Physics A 2007.

http://dx.doi.org/10.1016/j.nuclphysa.2007.04.003

2006

[A1 Publication] Solution of the Bohr Hamiltonian for a periodic potential with minimum at γ=π/6

Authors

De Baerdemacker S.; Fortunato L.; Hellemans V.; Heyde K.

Nuclear Physics A 2006.

http://dx.doi.org/10.1016/j.nuclphysa.2006.01.016

[A1 Publication] Solution of the Bohr Hamiltonian for soft triaxial nuclei

Authors

Fortunato L.; De Baerdemacker S.; Heyde K.

Physical Review C 2006. 74(1): 014310.

http://dx.doi.org/10.1103/PhysRevC.74.014310

2005

[A1 Publication] Shape coexistence in the lead isotopes using algebraic models: Description of spectroscopic and ground-state related properties

Authors

Fossion R.; Hellemans V.; De Baerdemacker S.; Heyde K.

Acta Physica Polonica B 2005. 36(4): 1351-1354.

http://dx.doi.org/

[A1 Publication] A theoretical description of energy spectra and two-neutron separation energies for neutron-rich zirconium isotopes

Authors

Garcıa-Ramos J. E.; Heyde K.; Fossion R.; Hellemans V.; De Baerdemacker S.

European Physical Journal A 2005. 26(2): 221-225.

http://dx.doi.org/10.1140/epja/i2005-10176-1

[A1 Publication] Soft triaxial rotor in the vicinity of γ = π/6 and its extensions

Authors

Fortunato L.; De Baerdemacker S.; Heyde K.

European Physical Journal A 2005. 25(1): 439-440.

http://dx.doi.org/10.1140/epjad/i2005-06-018-0

2004

[A1 Publication] Global and local behaviour of nuclear ground-state properties as fingerprints to shape coexistence in the lead isotopes

Authors

Fossion R.; Hellemans V.; De Baerdemacker S.; Heyde K.

AIP Conference Proceedings 2004.

http://dx.doi.org/

[A1 Publication] Configuration mixing in 188Pb: Band structure and electromagnetic properties

Authors

Hellemans V.; Fossion R.; De Baerdemacker S.; Heyde K.

Physical Review C 2004. 71(3): 034308.

http://dx.doi.org/10.1103/PhysRevC.71.034308

[A1 Publication] Phase transitions versus shape coexistence

Authors

Heyde K.; Jolie J.; Fossion R.; De Baerdemacker S.; Hellemans V.

Physical Review C 2004. 69(5): 054304.

http://dx.doi.org/10.1103/PhysRevC.69.054304

Other publications

Books [B1/B2/B3]

Book chapter

[Book chapter] The Group Zoo of Classical Reversible Computing and Quantum Computing

De Vos A. (Alexis); De Baerdemacker S.

In Advances in Unconventional Computing - Volume 1: Theory, Springer, 2016. 455 - 473. ISBN/ISSN: 978-3-319-33923-8

[Book chapter] The Synthesis of a Quantum Circuit

De Vos A. (Alexis); De Baerdemacker S.

In Problems and New Solutions in the Boolean Domain, Cambridge Scholars, 2016. 357 - 368. ISBN/ISSN: 978-1-4438-8947-6

Conference proceedings [P1]

2015

[Conference Proceeding] The Dicke model as the contraction limit of a pseudo-deformed Richardson-Gaudin model

Authors

Claeys P.; De Baerdemacker S.; Van Raemdonck M.; Van Neck D.

Journal of Physics Conference Series 2015.

http://dx.doi.org/10.1088/1742-6596/597/1/012025

2014

[Conference Proceeding] Probing pairing correlations in Sn isotopes using Richardson-Gaudin integrability

Authors

De Baerdemacker S.; Hellemans V.; van den Berg R.; Caux J.-S.; Heyde K.; Van Raemdonck M.; Van Neck D.; Johnson P. A.; Buekenhoudt A.

Journal of Physics: Conference series 2014.

http://dx.doi.org/10.1088/1742-6596/533/1/012058

2012

[Conference Proceeding] The roots of the NOT gate

Authors

De Vos A. (Alexis); De Baerdemacker S.

International Symposium on Multiple-Valued Logic 2012.

http://dx.doi.org/10.1109/ISMVL.2012.14

[Conference Proceeding] Richardson-Gaudin description of pairing in atomic nuclei

Authors

De Baerdemacker S.

Journal of Physics: Conference series 2012.

http://dx.doi.org/10.1088/1742-6596/366/1/012010

Invited talks [Honorary lectureships, keynotes, plenary talks and invited talks]

Invited talks

2017

[Invited talk] Richardson-Gaudin models and topological superconductivity

Authors

Claeys P.; De Baerdemacker S.; Van Neck D.

Q-Top: Quantum and Topological Matter meeting at Leiden University, Leiden, NL, 03/02/2017

2016

[Invited talk] Richardson-Gaudin models: What can we learn from (breaking) symmetry?

Authors

Claeys P.; De Baerdemacker S.; Van Neck D.

CMT seminar at Institute of Physics, Amsterdam, NL, 23/11/2016

[Invited talk] Richardson-Gaudin models: What can we learn from (breaking) symmetry?

Authors

Claeys P.; De Baerdemacker S.; Van Neck D.

Geometry, Probability, Physics seminar series at Institut de Recherche en Mathématique et Physique, Louvain-la-Neuve, BE, 12/10/2016

Talks

2016

[Talk] Read-Green resonances in an integrable superconductor coupled to a bath

Authors

Claeys P.; De Baerdemacker S.; Van Neck D.

XXIVth International Conference on Integrable Systems and Quantum symmetries (ISQS-24), Prague, CZ, 14/06/2016 - 18/06/2016

[Talk] When two is better than one: the seniority scheme as a new tool to build wave functions

Authors

De Baerdemacker S.; Claeys P.; Poelmans W.; Van Neck D.; Bultinck P.; Van Raemdonck M.; Ayers P. W.; Limacher P. A.; Johnson P. A.; Boguslawski K.; Tecmer P.

QCB12, Leuven, BE, 16/02/2016

2015

[Talk] Integrable Dicke and Jaynes-Cummings models, and extensions

Authors

De Baerdemacker S.; Claeys P.; Van Neck D.

XXXth International Colloquium on Group Theoretical Methods in Physics, Ghent, BE, 14/07/2014 - 18/07/2014

2013

[Talk] Richardson-Gaudin Integrable Systems (and Beyond) for Strongly Correlated Quantum Many-Body Systems

Authors

De Baerdemacker S.; Ayers P. W.; Bultinck P.; Johnson P. A.; Limacher P. A.; Van Neck D.; Van Raemdonck M.

MQM 2013, Lugano, CH, 02/06/2013 - 07/06/2013

Posters

2017

[Poster] Correlation functions and inner products in integrable Richardson-Gaudin models

Authors

Claeys P.; Van Neck D.; De Baerdemacker S.

Correlation functions of quantum integrable systems and beyond, Lyon, FR, 23/10/2017 - 26/10/2017

[Poster] Making 2-electron response reduced density matrices N-representable

Authors

Lanssens C.; Ayers P. W.; Van Neck D.; De Baerdemacker S.; Gunst K.; Bultinck P.

International Summer School in Electronic Structure Theory: Electron Correlation in Physics and Chemistry, Aussois, FR, 18/06/2017 - 01/07/2017

2016

[Poster] Read‐Green resonances in a integrable superconductor coupled to a bath

Authors

Claeys P.; De Baerdemacker S.; Van Neck D.

XXIVth International Conference on Integrable Systems and Quantum symmetries (ISQS-24), Prague, CZ, 14/06/2016 - 18/06/2016

[Poster] Read‐Green resonances in a topological superconductor coupled to a bath

Authors

Claeys P.; De Baerdemacker S.; Van Neck D.

General Scientific Meeting 2016 of the Belgian Physical Society, Ghent, BE, 18/05/2016

2015

[Poster] Low dimensional physics in Metal-Organic Frameworks: a DFT study of breathing MIL-47

Authors

Vanpoucke D. E. P.; Jaeken J.; De Baerdemacker S.; Lejaeghere K.; Van Speybroeck V.

Belgian Physical Society Meeting 2015, Liège, BE, 13/05/2015

2014

[Poster] Quasi-1D physics in breathing metal-organic frameworks

Authors

Vanpoucke D. E. P.; Jaeken J.; De Baerdemacker S.; Van Speybroeck V.; Lejaeghere K.

Dutch Zeolite Association “On Hybrids and Zeolites”, Ghent, BE, 07/10/2014

[Poster] New quasi-1D materials: DFT-study of breathing metal-organic frameworks

Authors

Vanpoucke D. E. P.; Jaeken J.; De Baerdemacker S.; Lejaeghere K.; Ghysels A.; Waroquier M.; Van Speybroeck V.

Annual IAP Meeting (P7/05), Louvain-la-Neuve, BE, 19/09/2014

[Poster] Exploring the phase diagram of the p_x + ip_y pairing Hamiltonian by linking the eigenstates to associated bosonic states.

Authors

Van Raemdonck M.; De Baerdemacker S.; Van Neck D.

XXXth International Colloquium on Group Theoretical Methods in Physics, Ghent, BE, 14/07/2014 - 18/07/2014

2013

[Poster] Interpreting the phase diagram of the p_x + ip_y pairing Hamiltonian by deforming the pairing algebra.

Authors

Van Raemdonck M.; De Baerdemacker S.; Van Neck D.

The "March" meeting, Namur, BE, 21/11/2013 - 23/11/2013

[Poster] Reduced Density Matrix Optimization for the Two-Dimensional Hubbard Model

Authors

Verstichel B.; Poelmans W.; Wouters S.; De Baerdemacker S.; Van Neck D.

MQM 2013, Lugano, CH, 02/06/2013 - 07/06/2013

2012

[Poster] Perturbations on the superconducting state of metallic nanoparticles: a canonical Richardson-Gaudin approach

Authors

Van Raemdonck M.; De Baerdemacker S.; Van Neck D.

International symposium on small particles and inorganic clusters XVI, Leuven, BE, 08/07/2012 - 13/07/2012

[Poster] A Khon-Sham-like model for the l-body reduced density matrix from a strongly-correlated reference

Authors

Johnson P. A.; Ayers P. W.; De Baerdemacker S.; Van Neck D.; Bultinck P.

DFTM2012, Ghent, BE, 01/04/2012 - 06/04/2012

Contact information

Technologiepark-Zwijnaarde 46
9052 Zwijnaarde
Belgium

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Stijn De Baerdemacker

Publications

A1 publications

Published

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

Other publications

Books [B1/B2/B3]

Book chapter

Conference proceedings [P1]

2015

2014

2012

Invited talks [Honorary lectureships, keynotes, plenary talks and invited talks]

Invited talks

2017

2016

Talks

2016

2015

2013

Posters

2017

2016

2015

2014

2013

2012

Contact information

References