Dr Phillip Isaac is a mathematician interested in algebraic structures, particularly those related to quantum integrable systems.
Phillip received his PhD in mathematics in May 2001 from UQ. The title of his thesis was "Quasi Hopf superalgebras and their dual structures".
He worked as a JAVA programmer/cryptographer for about 9 months before undertaking a postdoctoral research fellowship at the Graduate School of Mathematical Sciences, University of Tokyo, Japan. His project was entitled "Symmetries in quantum spin chains".
After his return to Australia in September 2003, he began casual employment at UQ, working as a first year tutor and developing course materials.
His current research activities involve developing the constructive representation theory of Lie (super)algebras, quantum groups and related structures, and its utility in application, particularly to quantum integrable systems.
Journal Article: A connection between Uq(sl(3)) and Z2×Z2-graded special linear Lie colour algebras via Klein operators
Almutairi, Alhanouf M. and Isaac, Phillip S. (2024). A connection between Uq(sl(3)) and Z2×Z2-graded special linear Lie colour algebras via Klein operators. Journal of Mathematical Physics, 65 (1) ARTN 013503. doi: 10.1063/5.0163904
Journal Article: Occupancy probabilities in superintegrable bosonic networks
Bennett, Lachlan, Foerster, Angela, Isaac, Phillip S. and Links, Jon (2024). Occupancy probabilities in superintegrable bosonic networks. Nuclear Physics B, 998 116406, 116406. doi: 10.1016/j.nuclphysb.2023.116406
Journal Article: NOON state measurement probabilities and outcome fidelities: a Bethe Ansatz approach
Bennett, Lachlan, Isaac, Phillip Simon and Links, Jon (2023). NOON state measurement probabilities and outcome fidelities: a Bethe Ansatz approach. Journal of Physics A: Mathematical and Theoretical, 56 (50) ARTN 505202, 505202. doi: 10.1088/1751-8121/ad0a71
Quantum control designed from broken integrability
(2020–2023) ARC Discovery Projects
Unified theory of Richardson-Gaudin integrability
(2015–2019) ARC Discovery Projects
Constructive representation theory of classical and quantum Lie superalgebras
(2014–2016) ARC Discovery Projects
On solutions to the classical Yang-Baxter equation
Master Philosophy
On the Construction of Z2 × Z2- graded Lie colour algebras via Klein operators
(2023) Doctor Philosophy
Quadratic Algebras and Their Casimir Invariant
Doctor Philosophy
Almutairi, Alhanouf M. and Isaac, Phillip S. (2024). A connection between Uq(sl(3)) and Z2×Z2-graded special linear Lie colour algebras via Klein operators. Journal of Mathematical Physics, 65 (1) ARTN 013503. doi: 10.1063/5.0163904
Occupancy probabilities in superintegrable bosonic networks
Bennett, Lachlan, Foerster, Angela, Isaac, Phillip S. and Links, Jon (2024). Occupancy probabilities in superintegrable bosonic networks. Nuclear Physics B, 998 116406, 116406. doi: 10.1016/j.nuclphysb.2023.116406
NOON state measurement probabilities and outcome fidelities: a Bethe Ansatz approach
Bennett, Lachlan, Isaac, Phillip Simon and Links, Jon (2023). NOON state measurement probabilities and outcome fidelities: a Bethe Ansatz approach. Journal of Physics A: Mathematical and Theoretical, 56 (50) ARTN 505202, 505202. doi: 10.1088/1751-8121/ad0a71
Invariants and reduced Wigner coefficients for quasi-triangular Hopf superalgebras
Gould, Mark D., Isaac, Phillip Simon and Werry, Jason (2022). Invariants and reduced Wigner coefficients for quasi-triangular Hopf superalgebras. Journal of Physics A: Mathematical and Theoretical, 55 (23) 235201, 235201. doi: 10.1088/1751-8121/ac6715
Aizawa, N., Isaac, P. S. and Segar, J. (2020). ℤ2 × ℤ2-Generalizations of Infinite-Dimensional Lie Superalgebra of Conformal Type with Complete Classification of Central Extensions. Reports on Mathematical Physics, 85 (3), 351-373. doi: 10.1016/S0034-4877(20)30041-0
Ground-state energy of a Richardson-Gaudin integrable BCS model
Shen, Yibing, Isaac, Phillip and Links, Jon (2020). Ground-state energy of a Richardson-Gaudin integrable BCS model. SciPost Physics Core, 2 (1) 001. doi: 10.21468/scipostphyscore.2.1.001
The Z2×Z2-graded general linear Lie superalgebra
Isaac, Phillip S., Stoilova, N. I. and Van der Jeugt, Joris (2020). The Z2×Z2-graded general linear Lie superalgebra. Journal of Mathematical Physics, 61 (1) 011702, 011702. doi: 10.1063/1.5138597
Invariants and matrix elements of the quantum group U<sub>q</sub>[gl(n, C)] revisited
Gould, Mark D. and Isaac, Phillip Simon (2019). Invariants and matrix elements of the quantum group Uq[gl(n, C)] revisited. Journal of Physics A: Mathematical and Theoretical, 52 (29) 295201, 295201. doi: 10.1088/1751-8121/ab2676
Z2×Z2 generalizations of N=1 superconformal Galilei algebras and their representations
Aizawa, N., Isaac, P. S. and Segar, J. (2019). Z2×Z2 generalizations of N=1 superconformal Galilei algebras and their representations. Journal of Mathematical Physics, 60 (2) 023507, 023507. doi: 10.1063/1.5054699
On Casimir operators of conformal Galilei algebras
Alshammari, Fahad, Isaac, Phillip S. and Marquette, Ian (2019). On Casimir operators of conformal Galilei algebras. Journal of Mathematical Physics, 60 (1) 013509, 013509. doi: 10.1063/1.5064840
Ground-state energies of the open and closed p + ip-pairing models from the Bethe Ansatz
Shen, Yibing, Isaac, Phillip S. and Links, Jon (2018). Ground-state energies of the open and closed p + ip-pairing models from the Bethe Ansatz. Nuclear Physics B, 937, 28-55. doi: 10.1016/j.nuclphysb.2018.08.015
Energy-level crossings and number-parity effects in a bosonic tunneling model
Agboola, Davids, Isaac, Phillip Simon and Links, Jon (2018). Energy-level crossings and number-parity effects in a bosonic tunneling model. Journal of Physics B: Atomic, Molecular and Optical Physics, 51 (14) 145301, 145301. doi: 10.1088/1361-6455/aac6f2
Alshammari, Fahad, Isaac, Phillip S. and Marquette, Ian (2018). A differential operator realisation approach for constructing Casimir operators of non-semisimple Lie algebras. Journal of Physics A: Mathematical and Theoretical, 51 (6) 065206, 065206. doi: 10.1088/1751-8121/aaa468
Werry, Jason L., Isaac, Phillip S. and Gould, Mark D. (2017). Reduced Wigner coefficients for Lie superalgebra gl(m|n) corresponding to unitary representations and beyond. Journal of Physics A: Mathematical and Theoretical, 50 (36) 365202, 365202. doi: 10.1088/1751-8121/aa8119
Two-site Bose-Hubbard model with nonlinear tunneling: classical and quantum analysis
Rubeni, D., Links, J., Isaac, P. S. and Foerster, A. (2017). Two-site Bose-Hubbard model with nonlinear tunneling: classical and quantum analysis. Physical Review A, 95 (4) 043607. doi: 10.1103/PhysRevA.95.043607
An integrable case of the p + ip pairing Hamiltonian interacting with its environment
Lukyanenko, Inna, Isaac, Phillip S. and Links, Jon (2016). An integrable case of the p + ip pairing Hamiltonian interacting with its environment. Journal of Physics A-Mathematical and Theoretical, 49 (8) 084001. doi: 10.1088/1751-8113/49/8/084001
Matrix elements and duality for type 2 unitary representations of the Lie superalgebra gl(m|n)
Werry, Jason L., Gould, Mark D. and Isaac, Phillip S. (2015). Matrix elements and duality for type 2 unitary representations of the Lie superalgebra gl(m|n). Journal of Mathematical Physics, 56 (12) 121703, 121703-1-121703-19. doi: 10.1063/1.4938076
Reduced matrix elements of the orthosymplectic Lie superalgebra
Gould, Mark D. and Isaac, Phillip S. (2015). Reduced matrix elements of the orthosymplectic Lie superalgebra. Journal of Physics A: Mathematical and Theoretical, 48 (2) 025201, 1-39. doi: 10.1088/1751-8113/48/2/025201
On the boundaries of quantum integrability for the spin-1/2 Richardson-Gaudin system
Lukyanenko, Inna, Isaac, Phillip S. and Links, Jon (2014). On the boundaries of quantum integrability for the spin-1/2 Richardson-Gaudin system. Nuclear Physics B, 886, 364-398. doi: 10.1016/j.nuclphysb.2014.06.018
On realizations of polynomial algebras with three generators via deformed oscillator algebras
Isaac, Phillip S. and Marquette, Ian (2014). On realizations of polynomial algebras with three generators via deformed oscillator algebras. Journal of Physics A: Mathematical and Theoretical, 47 (20) 205203, 1-26. doi: 10.1088/1751-8113/47/20/205203
Matrix elements for type 1 unitary irreducible representations of the Lie superalgebra gl(m|n)
Gould, Mark D., Isaac, Phillip S. and Werry, Jason L. (2014). Matrix elements for type 1 unitary irreducible representations of the Lie superalgebra gl(m|n). Journal of Mathematical Physics, 55 (011703) 011703, 011703.1-011703.32. doi: 10.1063/1.4861706
Invariants and reduced matrix elements associated with the Lie superalgebra gl(m|n)
Gould, Mark D., Isaac, Phillip S. and Werry, Jason L. (2013). Invariants and reduced matrix elements associated with the Lie superalgebra gl(m|n). Journal of Mathematical Physics, 54 (1) 013505, 013505. doi: 10.1063/1.4773573
Aizawa, Naruhiko, Isaac, Phillip S. and Kimura, Yuta (2012). Highest weight representations and Kac determinants for a class of conformal galilei algebras with central extension. International Journal of Mathematics, 23 (11) 1250118, 1250118.1-1250118.25. doi: 10.1142/S0129167X12501182
A variational approach for the quantum inverse scattering method
Andrew Birrell, Isaac, Phillip and Links, Jon R. (2012). A variational approach for the quantum inverse scattering method. Inverse Problems, 28 (3) 035008, 035008.1-035008.15. doi: 10.1088/0266-5611/28/3/035008
BEC-BCS crossover in a (p + ip)-wave pairing Hamiltonian coupled to bosonic molecular pairs
Dunning, Clare, Isaac, Phillip S., Links, Jon and Zhao, Shao-You (2011). BEC-BCS crossover in a (p + ip)-wave pairing Hamiltonian coupled to bosonic molecular pairs. Nuclear Physics B, 848 (2), 372-397. doi: 10.1016/j.nuclphysb.2011.03.001
Finch, P. E., Dancer, K. A., Isaac, P. S. and Links, J. (2011). Solutions of the Yang-Baxter equation: Descendants of the six-vertex model from the Drinfeld doubles of dihedral group algebras. Nuclear Physics Section B, 847 (2), 387-412. doi: 10.1016/j.nuclphysb.2011.01.034
On irreducible representations of the exotic conformal Galilei algebra
Aizawa, N and Isaac, PS (2011). On irreducible representations of the exotic conformal Galilei algebra. Journal of Physics A-Mathematical and Theoretical, 44 (3) 035401, 1-8. doi: 10.1088/1751-8113/44/3/035401
Bethe ansatz solution of an integrable, non-Abelian anyon chain with D(D-3) symmetry
Campbell, C. W., Dancer, K. A., Isaac, P. S. and Links, J. (2010). Bethe ansatz solution of an integrable, non-Abelian anyon chain with D(D-3) symmetry. Nuclear Physics, Section B, 836 (3), 171-185. doi: 10.1016/j.nuclphysb.2010.04.014
Integrable boundary conditions for a non-Abelian anyon chain with D(D3) symmetry
Dancer, K. A., Finch, P. E., Isaac, P. S. and Links, J. (2009). Integrable boundary conditions for a non-Abelian anyon chain with D(D3) symmetry. Nuclear Physics B, 812 (3), 456-469. doi: 10.1016/j.nuclphysb.2008.12.002
Assessment of an innovative system of lecture notes in first-year mathematics
Tonkes, E. J., Isaac, P. S. and Scharaschkin, V. (2009). Assessment of an innovative system of lecture notes in first-year mathematics. International Journal of Mathematical Education in Science and Technology, 40 (4), 495-504. doi: 10.1080/00207390902759592
Universal Baxterization for Z-graded Hopf algebras
Dancer, K. A., Finch, P. E. and Isaac, P. S. (2007). Universal Baxterization for Z-graded Hopf algebras. Journal of Physics A: Mathematical and Theoretical, 40 (50), F1069-F1075. doi: 10.1088/1751-8113/40/50/F01
An algebraic approach to symmetric pre-monoidal statistics
Isaac, P. S., Joyce, W. P. and Links, J. (2007). An algebraic approach to symmetric pre-monoidal statistics. Journal of Algebra and Its Applications, 6 (1), 49-69. doi: 10.1142/S0219498807002065
Dancer, K. A., Isaac, P. S. and Links, J. (2006). Representations of the quantum doubles of finite group algebras and spectral parameter dependent solutions of the Yang–Baxter equation. Journal of Mathematical Physics, 47 (10) 103511, 103511-1-103511-18. doi: 10.1063/1.2359575
Weak Hopf algebras corresponding to U-q[sl(n)]
Aizawa, N and Isaac, PS (2003). Weak Hopf algebras corresponding to U-q[sl(n)]. Journal of Mathematical Physics, 44 (11), 5250-5267. doi: 10.1063/1.1616999
Gould, Mark D., Zhang, Yao-Zhong and Isaac, Phillip S. (2001). On Quasi-Hopf Superalgebras. Communications in Mathematical Physics, 224 (2), 341-372. doi: 10.1007/s00220-001-0566-2
Casimir invariants from quasi-Hopf (super)algebras
Gould, Mark D., Zhang, Yao-Zhong and Isaac, Phillip S. (2000). Casimir invariants from quasi-Hopf (super)algebras. Journal of Mathematical Physics, 41 (1), 547-568. doi: 10.1063/1.533151
Characteristic identities for Lie (super)algebras
Isaac, Phillip S., Werry, Jason L. and Gould, Mark D. (2015). Characteristic identities for Lie (super)algebras. 30th International Colloquium on Group Theoretical Methods in Physics (Group30), Ghent Belgium, 14-18 July, 2014. Bristol, United Kingdom: Institute of Physics Publishing. doi: 10.1088/1742-6596/597/1/012045
Exactly solvable BCS-BEC crossover Hamiltonians
Birrell, A., Isaac, P. S. and Links, J. (2013). Exactly solvable BCS-BEC crossover Hamiltonians. The XXIX International Colloquium on Group-Theoretical Methods in Physics, Tianjin, China, 20-26 August 2012. Hackensack, NJ, United States: World Scientific. doi: 10.1142/9789814518550_0018
Introducing a group research project into a second-level mathematics course
Worsley, Susan, Bracken, Anthony, Hibberd, Katrina and Isaac, Phillip (2009). Introducing a group research project into a second-level mathematics course. UniServe Science Conference 2009, Sydney, NSW, Australia, 30 September - 2 October 2009. Sydney, NSW, Australia: UniServe Science.
Ribbon structure in symmetric pre-monoidal categories
Wagner, L., Links, J. and Isaac, P. (2005). Ribbon structure in symmetric pre-monoidal categories. XXV International Colloquium on Group Theoretical Methods in, Cocoyoc, Mexico, 2-6 August, 2004. Bristol, U.K.: Institute of Physics Publishing.
Quasi-Lie algebras and a method for determining non-degeneracy of the quasi-Lie product
Gould, MD and Isaac, PS (1998). Quasi-Lie algebras and a method for determining non-degeneracy of the quasi-Lie product. 12th International Colloquium on Group Theoretical Methods in Physics (Group 22), Hobart Australia, Jul 13-17, 1998. CAMBRIDGE: INTERNATIONAL PRESS INC BOSTON.
Quasi Hopf superalgebras and their dual structures
Isaac, Phillip S. (2001). Quasi Hopf superalgebras and their dual structures. PhD Thesis, School of Physical Sciences, The University of Queensland. doi: 10.14264/uql.2019.664
Quantum control designed from broken integrability
(2020–2023) ARC Discovery Projects
Unified theory of Richardson-Gaudin integrability
(2015–2019) ARC Discovery Projects
Constructive representation theory of classical and quantum Lie superalgebras
(2014–2016) ARC Discovery Projects
Mathematics of anyonic models.
(2008–2009) UQ Early Career Researcher
On solutions to the classical Yang-Baxter equation
Master Philosophy — Principal Advisor
Other advisors:
Quadratic Algebras and Their Casimir Invariant
Doctor Philosophy — Principal Advisor
Other advisors:
Integrable structure of central spin models and applications
Master Philosophy — Associate Advisor
Other advisors:
Integrable Bosonic Networks
Doctor Philosophy — Associate Advisor
Other advisors:
On the Construction of Z2 × Z2- graded Lie colour algebras via Klein operators
(2023) Doctor Philosophy — Principal Advisor
Other advisors:
On the construction of Casimir operators for non-semisimple Lie algebras
(2018) Doctor Philosophy — Principal Advisor
Bethe Ansatz analysis of the open and closed p + ip-pairing BCS models
(2019) Doctor Philosophy — Associate Advisor
Other advisors:
Richardson-Gaudin models from the Boundary Quantum Inverse Scattering Method
(2016) Doctor Philosophy — Associate Advisor
Other advisors:
Unitary Representation Theory of the Lie Superalgebra gl(m|n)
(2015) Doctor Philosophy — Associate Advisor
Other advisors:
Aspects of Quantum Phase Space
(2012) Doctor Philosophy — Associate Advisor
Solutions to the Yang-Baxter equation and the Drinfield double of group algebras
(2010) Doctor Philosophy — Associate Advisor
Other advisors:
Spectra of Transfer Matrices of Exactly Solvable Models with D(D3) Symmetry
(2010) Doctor Philosophy — Associate Advisor
Other advisors:
On the Construction of Braided Pre-monoidal Nonassociative Categories
(2008) Doctor Philosophy — Associate Advisor
Other advisors: