Kwek Leong Chuan
Principal Investigator
Centre for Quantum Technologies
Professor
National Institute of Education - Natural Sciences & Science Education, Nanyang Technological University
Co-Director
Quantum Science and Engineering Centre (QSec), Nanyang Technological University
S15-03-09

Preprints

Publications

  • Shao-Hen Chiew, Jiangbin Gong, L.C. Kwek, Chee-Kong Lee. (2023). Stability and dynamics of many-body localized systems coupled to a small bath. Phys. Rev. B 107 224202
  • Jiang Zhang, Thi Ha Kyaw, Stefan Filipp, L.C. Kwek, Erik Sjöqvist, Dianmin Tong. (2023). Geometric and holonomic quantum computation. Physics Reports 1027 1-53
  • W.Z. Lau, K.H. Lim, Kishor Bharti, L.C. Kwek, S. Vinjanampathy. (2023). Convex optimization for non-equilibrium steady states on a hybrid quantum processor. Phys. Rev. Lett. 130 240601
  • L. Amico, Dana Anderson, Malcolm Boshier, Jean-Philippe Brantut, L.C. Kwek, Anna Minguzzi, Wolf von Klitzing. (2022). Atomtronic circuits: from many-body physics to quantum technologies. Rev. Mod. Phys. 94 041001
  • M.Ray, N.G. Boddu, K. Bharti, L.C. Kwek, Adán Cabello. (2021). Graph-theoretic approach to dimension witnessing. New J. Phys. 23 033006
  • K. Bharti, Atul Singh Arora, L.C. Kwek, Jeremie Roland. (2020). All fundamental non-contextuality inequalities are unique. Physical Review Research 2 033010
  • D. Aghamalyan, J. You, Hong-Son Chu, Ching Eng Png, Leonid Krivitsky, L.C. Kwek. (2019). Tunable quantum switch realized with a single Λ-level atom coupled to the microtoroidal cavity. Phys. Rev. A 100 053851
  • T. Haug, R. Dumke, L.C. Kwek, L. Amico. (2019). Topological pumping in Aharonov–Bohm rings. Communications Physics 2 127
  • K. Bharti, M.Ray, A.Varvitsiotis, NA Warsi, Adan Cabello, L.C. Kwek. (2019). Robust self-testing of quantum systems via noncontextuality inequalities. Phys. Rev. Lett. 122 250403
  • K. Bharti, M.Ray, L.C. Kwek. (2019). Non-classical Correlations in n-Cycle Setting. Entropy
  • Nicolas Victorin, T. Haug, L.C. Kwek, L. Amico, Anna Minguzzi. (2019). Nonclassical states in strongly correlated bosonic ring ladders. Phys. Rev. A 3 033616
  • T. Haug, R. Dumke, L.C. Kwek, L. Amico. (2019). Andreev-reflection and Aharonov-Bohm dynamics in atomtronic circuits. Quantum Science and Technology 4 045001
  • T. Haug, H. Heimonen, R. Dumke, L.C. Kwek, L. Amico. (2019). The Aharonov-Bohm effect in mesoscopic Bose-Einstein condensates. Phys. Rev. A (R) 100 041601(R)
  • H.Michal, Sameer Sonar, M. Mukherjee, R. Fazio, S. Vinjanampathy, L.C. Kwek, V. Vedral. (2018). Squeezing Enhances Quantum Synchronization. Phys. Rev. Lett. 120 163601
  • DS.Yu, A. Landra, L.C. Kwek, L. Amico, R. Dumke. (2018). Stabilizing Rabi Oscillation of a Charge Qubit via the Atomic Clock Technique. New J. Phys. 20
  • H. Heimonen, L.C. Kwek, R. Kaiser, G. Labeyrie. (2018). Synchronization of a Self-Sustained Cold Atom Oscillator. Phys. Rev. A 97 043406
  • Thi Ha Kyaw, L.C. Kwek. (2018). Cluster state generation in one-dimensional Kitaev model via shortcut to adiabaticity. New J. Phys. 20 045007
  • T. Haug, Joel Tan, Mark Theng, R. Dumke, L.C. Kwek, L. Amico. (2018). Read-out of the atomtronic quantum interference device. Phys. Rev. A 97 013633
  • V. M. Bastidas, Thi Ha Kyaw, J. Jirawat Tangpanitanon, J. Tangpanitanon, Guillermo Romero, L.C. Kwek, D.G. Angelakis. (2018). Floquet stroboscopic divisibility: coherence preservation in non-Markovian dynamics. New J. Phys. 20 093004
  • T. Haug, L. Amico, R. Dumke, L.C. Kwek. (2018). Mesoscopic Vortex–Meissner currents in ring ladders. Quantum Science and Technology 3
  • S. Safaei, B. Gremaud, R. Dumke, L.C. Kwek, L. Amico, C. Miniatura. (2018). Two-dimensional network of atomtronic qubits. Phys. Rev. A 97 042306
  • Guo-Zhu Song, E. Munro, W. Nie, Fu-Guo Deng, Guo-Jian Yang, L.C. Kwek. (2017). Photon scattering by an atomic ensemble coupled to a one-dimensional nanophotonic waveguide. Phys. Rev. A 96 043872
  • DS.Yu, L.C. Kwek, L. Amico, R. Dumke. (2017). Theoretical Description of Micromaser in the Ultrastrong-Coupling Regime. Phys. Rev. A 95 053811
  • DS.Yu, L.C. Kwek, L. Amico, R. Dumke. (2017). Superconducting Qubit-Resonator-Atom Hybrid System. Quantum Science and Technology 2 3
  • Thi Ha Kyaw, Sebastian Allende, L.C. Kwek, Guillermo Romero. (2017). Parity-preserving light-matter system mediates effective two-body interactions. Quantum Science and Technology 2 025007
  • DS.Yu, M.V.Maria, C. Hufnagel, L.C. Kwek, L. Amico, R. Dumke. (2016). Charge Qubit-Atom Hybrid. Phys. Rev. A 93 042329
  • DS.Yu, M.V.Maria, C. Hufnagel, L.C. Kwek, L. Amico, R. Dumke. (2016). Quantum state transmission in a superconducting charge Qubit-atom hybrid . Scientific Reports 6 38356
  • M.V.Maria, DS.Yu, A. Landra, C. Hufnagel, L.C. Kwek, L. Amico, R. Dumke. (2016). Superconducting Resonator-Rydberg Atom Hybrid in the Strong Coupling Regime. Phys. Rev. A 94 062301
  • D. Aghamalyan, N. T. Nguyen, F. Auksztol, Gan Koon Siang, M. Martinez Valado, P.C. Condylis, L.C. Kwek, R. Dumke, L. Amico. (2016). An Atomtronic Flux Qubit: A ring lattice of Bose-Einstein condensates interrupted by three weak links. New J. Phys. 18
  • Ernest Y.-Z. Tan, D. Kaszlikowski, L.C. Kwek. (2016). Entanglement witness via symmetric two-body correlations. Phys. Rev. A 93 012341
  • Koh, C. Y, L.C. Kwek. (2015). Entanglement witness for spin glass. Physica A: Statistical Mechanics and its Applications 420
  • Li Yan, Su Hong-Yi, Zhang Fu-Lin, Chen Jing-Ling, Wu Chun-Feng, L.C. Kwek. (2015). Zitterbewegung in Bogoliubov\'s System. Communications in Theoretical Physics 63
  • Kyaw, T. H., Felicetti, S., Romero, G., Solano, E., L.C. Kwek. (2015). Scalable quantum memory in the ultrastrong coupling regime. Scientific Reports 5 8621
  • Chen, Jing-Ling, Su, Hong-Yi, Xu, Zhen-Peng, Wu, Yu-Chun, Wu, Chunfeng, Ye, Xiang-Jun, Zukowski, Marek, L.C. Kwek. (2015). Beyond Gisin\'s Theorem and its Applications: Violation of Local Realism by Two-Party Einstein-Podolsky-Rosen Steering. Scientific Reports 5 11624
  • Bae, Joonwoo, L.C. Kwek. (2015). Quantum state discrimination and its applications. J. Phys. A: Math. Theor. 48 83001
  • D. Aghamalyan, Marco Cominotti, Matteo Rizzi, Davide Rossini, Frank Hekking, Anna Minguzzi, L.C. Kwek, L. Amico. (2015). Coherent superposition of current flows in an Atomtronic Quantum Interference Device. New J. Phys. 17 045023
  • Marco Cominotti, Matteo Rizzi, Davide Rossini, D. Aghamalyan, L. Amico, L.C. Kwek, Frank Hekking, Anna Minguzzi. (2015). Optimal scaling of persistent currents for interacting bosons on a ring. EPJ ST 224 519
  • J. Zhang, Thi Ha Kyaw, D. M. Tong, E. Sjoqvist, L.C. Kwek. (2015). Fast non-Abelian geometric gates via transitionless quantum driving. Scientific Reports 5 18414
  • F. Mei, J. You, W. Nie, R. Fazio, Shi-Liang Zhu, L.C. Kwek. (2015). Simulation and detection of photonic Chern insulators in a one-dimensional circuit-QED lattice. Phys. Rev. A (R) 92 041805
  • Thi Ha Kyaw, S. Felicetti, G. Romero, E. Solano, L.C. Kwek. (2015). Scalable quantum random-access memory with superconducting circuits. Scientific Reports 5 8621
  • Thi Ha Kyaw, D. Herrera-Marti, Enrique Solano, Guillermo Romero, L.C. Kwek. (2015). Creation of quantum error correcting codes in the ultrastrong coupling regime. Phys. Rev. B 91 064503
  • Fabio Franchini, Jian Cui, L. Amico, Heng Fan, M. Gu, Vladimir E. Korepin, L.C. Kwek, V. Vedral. (2014). Local convertibility and edge states in quantum many body systems. Phys. Rev. X 4 041028
  • Thi Ha Kyaw, Y. Li, L.C. Kwek. (2014). Measurement-Based Quantum Computation on Two-Body Interacting Qubits with Adiabatic Evolution. Phys. Rev. Lett. 113 180501
  • Thi Ha Kyaw, Simone Felicetti, Guillermo Romero, Enrique Solano, L.C. Kwek. (2014). Z_2 quantum memory implemented on circuit quantum electrodynamics. Proc. Of SPIE 9225 92250B
  • M. Huo, W. Nie, D. Hutchinson, L.C. Kwek. (2014). A solenoidal synthetic field and the non-Abelian Aharonov-Bohm effects in neutral atoms. Scientific Reports 4 5992
  • Q.J. Tong, J. H. An, L.C. Kwek, H. G. Luo, C.H. Oh. (2014). Simulating Zeno physics by a quantum quench with superconducting circuits. Phys. Rev. A (R) 89 060101(R)
  • Jun-Yi Wu, Matteo Rossi, Hermann Kampermann, Simone Severini, L.C. Kwek, Chiara Macchiavello, Dagmar Bruß. (2014). Randomized Graph States and their Entanglement Properties. Phys. Rev. A 052335
  • Tzu-Chieh Wei, Y. Li, L.C. Kwek. (2014). Transitions in the quantum computational power. Phys. Rev. A 89
  • D. Herrera-Marti, Y. Li, L.C. Kwek. (2014). Quasiparticle Localisation via Frequent Measurements. Quantum Information and Computation 1136-1148
  • J.Zhang, L.C. Kwek, E. Sjoqvist, D.M.Tong, P. Zanardi. (2014). Quantum computation in noiseless subsystems with fast non-Abelian holonomies . Phys. Rev. A 042302
  • L. Amico, D. Aghamalyan, H. Crepaz, F. Auksztol, R. Dumke, L.C. Kwek. (2014). Superfluid qubit systems with ring shaped optical lattices. Scientific Reports 4 4298
  • D. Aghamalyan, L. Amico, L.C. Kwek. (2013). Effective dynamics of cold atoms flowing in two ring shaped optical potentials with tunable tunneling. Phys. Rev. A 88 063627
  • C Y Koh, L.C. Kwek, S T Wang, Y Q Chong. (2013). Entanglement and discord in spin glass. Laser Physics 23 025202
  • Y. Li, D. Herrera-Marti, L.C. Kwek. (2013). Quantum Zeno Effect of General Quantum Operations. Phys. Rev. A 88 042321
  • H. Su, W. Morong, J. Chen, C.F. Wu, L.C. Kwek. (2013). Quantum nonlocality of massive qubits in a moving frame. Phys. Rev. A 88 22124
  • V. D'Ambrosio, N. Spagnolo, L. Del Re, S. Slussarenko, Y. Li, L.C. Kwek, L. Marrucci, S. P. Walborn, L. Aolita, F. Sciarrino. (2013). Photonic polarization gears for ultra-sensitive angular measurements. Nature Communications 4 2432
  • Fu-Lin Zhang, J. Chen, L.C. Kwek, V. Vedral. (2013). Requirement of Dissonance in Assisted Optimal State Discrimination. Nature Scientific Reports 3 2134
  • J. Chen, X. Ye, C.F. Wu, H. Su, A Cabello, L.C. Kwek, C.H. Oh. (2013). All-Versus-Nothing Proof of Einstein-Podolsky-Rosen Steering. Scientific Reports 3 2143
  • D.G. Angelakis, M. Huo, Darrick Chang, L.C. Kwek, Vladimir Korepin. (2013). Mimicking interacting relativistic theories with stationary pulses of light. Phys. Rev. Lett. 110 100502
  • J. Chen, H. Su, C.F. Wu, D.L. Deng, A Cabello, L.C. Kwek, C.H. Oh. (2013). Quantum contextuality for a relativistic spin-1/2 particle. Phys. Rev. A 87 022109
  • Shu-Chao Wang, Y. Li, Xiang-Bin Wang, L.C. Kwek. (2013). Operator Quantum Zeno Effect: Protecting Quantum Information with Noisy Two-Qubit Interactions. Phys. Rev. Lett. 110 100505
  • Armando Perez-Leija, Robert Keil, A. Kay, Hector Moya-Cessa, Stefan Nolte, L.C. Kwek, Blas M. Rodríguez-Lara, Alexander Szameit, Demetrios N. Christodoulides. (2013). Coherent Quantum Transport in Photonic Lattices. Phys. Rev. A 87 012309
  • L.C. Kwek, Z.H. Wei, Bei Zeng. (2012). Measurement-Based Quantum Computing with Valence-Bond-Solids. Int. J. Mod. Phys. B 26 123002
  • B. Li, L.C. Kwek, H. Fan. (2012). Detecting genuine multipartite correlations in terms of the rank of coefficient matrix . J. Phys. A: Math. Theor. 45 505301
  • G. F. Xu, J. Zhang, D. M. Tong, E. Sjoqvist, L.C. Kwek. (2012). Non-Adiabatic Holonomic Quantum Computation in Decoherence-Free Subspaces. Phys. Rev. Lett. 109 170501
  • Y. Li, Leandro Aolita, Darrick E. Chang, L.C. Kwek. (2012). Robust-fidelity atom-photon entangling gates in the weak-coupling regime. Phys. Rev. Lett. 109 160504
  • D. Valente, Y. Li, J. P. Poizat, J. M. Gerard, L.C. Kwek, M.F. Santos, A. Auffeves. (2012). Universal optimal broadband photon cloning and entanglement creation in one dimensional atoms. Phys. Rev. A 86 022333
  • D. Valente, Y. Li, J. P. Poizat, J. M. Gérard, L.C. Kwek, M.F. Santos, A. Auffèves. (2012). Optimal irreversible stimulated emission. New J. Phys. 14 083029
  • M. Huo, D.G. Angelakis, L.C. Kwek. (2012). Spinons and Holons with Polarized Photons in a Nonlinear Waveguide. New J. Phys. 14 075027
  • Y. Li, D. Cavalcanti, L.C. Kwek. (2012). Long-distance entanglement generation with scalable and robust two-dimensional quantum network. Phys. Rev. A 85 062330
  • J. Cui, M. Gu, L.C. Kwek, M.F. Santos, Heng Fan, V. Vedral. (2012). Quantum phases with differing computational power. Nature Communications 3 812
  • E. Kyoseva, Almut Beige, L.C. Kwek. (2012). Coherent cavity networks with complete connectivity. New J. Phys. 14 023023
  • L. Dai, L.C. Kwek. (2012). Realizing the Multipartite Hanbury Brown-Twiss Interferometer Using Nitrogen-Vancancy Centers in Diamond Crystals. Phys. Rev. Lett. 108 066803
  • L. Dai, D.G. Angelakis, L.C. Kwek, S. Mancini. (2011). Correlations and thermalization in driven cavity arrays. AIP Conf. Proc. 1384 168-176
  • C.K. Lee, L.C. Kwek, Jianshu Cao. (2011). Stochastic Resonance of Quantum Discord. Phys. Rev. A 84 062113
  • Xu M., Xu S., Duan M.Y., Jiang N, Li H.S., L.C. Kwek, K.Ostrikov. (2011). Composition-Dependent Structural and Electronic Properties of alpha-(Si1-xCx)(3)N-4. J. Phys. Chem. C 115 2448
  • L.C. Kwek. (2011). Probing Multipartite Entanglement in Spin Chain via Structure Factors. Laser Physics (8) 1511
  • L.C. Kwek, Setiawan. (2011). One-dimensional quantum walk with a moving boundary. Phys. Rev. A 84 032319
  • Tzu-Chieh Wei, Robert Raussendorf, L.C. Kwek. (2011). Quantum computational universality of the Cai-Miyake-D�r-Briegel 2D quantum state from Affleck-Kennedy-Lieb-Tasaki quasichains. Phys. Rev. A 84 042333
  • Li-yun Hu, Z. S. Wang, L.C. Kwek, Hong-yi Fan. (2011). Quantum mechanical photon-count formula derived by entangled state representation. Ch. Phys. B 20 084203
  • D. Li, X. Li, H. Huang, X. Li, L.C. Kwek. (2011). Wigner-Yanase-Dyson information as a measure of quantum uncertainty of mixed states. Eur. Phys. J. D 64 147-158
  • Y. Li, Daniel E. Browne, L.C. Kwek, Robert Raussendorf, Tzu-Chieh Wei. (2011). Thermal States as Universal Resources for Quantum Computation with Always-On Interactions. Phys. Rev. Lett. 107 060501
  • Y. Li, Leandro Aolita, L.C. Kwek. (2011). Photonic multiqubit states from a single atom. Phys. Rev. A 83 032313
  • D.G. Angelakis, M. Huo, E. Kyoseva, L.C. Kwek. (2011). Luttinger Liquid of Photons and Spin-Charge Separation in Hollow-Core Fibers. Phys. Rev. Lett. 106 153601
  • Jia-Zhong Hu, Xiang-Bin Wang, L.C. Kwek. (2010). Protecting Two-Qubit Quantum States by pi-Phase Pulses. Phys. Rev. A 82 062317
  • L. Dai, Y.P. Feng, L.C. Kwek. (2010). Engineering quantum cloning through maximal entanglement between boundary qubits in an open spin chain. J. Phys. A: Math. Theor. 43 035302
  • C.W. Niu, G.F. Xu, L.J. Liu, L. Kang, D.M. Tong, L.C. Kwek. (2010). Separable states and geometric phases of an interacting two-spin system. Phys. Rev. A 81 012116
  • X.T. Ni, Y.X. Liu, L.C. Kwek, X.B. Wang. (2010). Exponential quadratic operators and evolution of bosonic systems coupled to a heat bath. Phys. Rev. A 81 062125
  • E. Kyoseva, D.G. Angelakis, L.C. Kwek. (2010). A single-interaction step implementation of a quantum search in coupled micro-cavities. Europhys. Lett. 89 20005
  • D.G. Angelakis, L. Dai, L.C. Kwek. (2010). Coherent control of steady state entanglement in driven cavity arrays. Europhys. Lett. 91 10003
  • L.C. Kwek, Y. Takahashi, K. W. Choo. (2009). Spin Chain under Next Nearest Neighbor Interaction. J. Phys: Conf 143 012014
  • P. Krammer, H. Kampermann, D. Bruss, R. A. Bertlmann, L.C. Kwek, C. Macchiavello. (2009). Multipartite Entanglement Detection Via Structure Factors. Phys. Rev. Lett. 103 100502
  • X.J. Liu, X. Liu, L.C. Kwek, C.H. Oh. (2009). Fractional spin Hall effect in atomic Bose gases. Phys. Rev. B 79 165301
  • L.C. Kwek, M.K. Kwan. (2009). Berry Phase in Magnetoelectric Materials. Int. J. Quant. Info. 7 105
  • D. Li, X. Li, F. Wang, H. Huang, X. Li, L.C. Kwek. (2009). Uncertainty relation of mixed states by means of Wigner-Yanase-Dyson information. Phys. Rev. A 79 052106
  • Z.W. Yu, X.T. Ni, L.C. Kwek, X.B. Wang. (2009). A unified quantum NOT gate. J. Phys. A: Math. Theor. 42 205304
  • M.K. Kwan, Z.N. Gurkan, L.C. Kwek. (2008). Berry\'s phase under the Dzyaloshinskii-Moriya interaction. Phys. Rev. A 77 062311
  • X. J. Liu, L. Liu, L.C. Kwek, C.H. Oh. (2008). Manipulating atomic states via optical orbital angular-momentum. Front. Phys. China 3 113-125
  • X.J. Liu, L.C. Kwek, C.H. Oh. (2008). Quantum spin current induced through optical dipole transition process in semiconductors. Int. J. Mod. Phys. B 22 44-56
  • Z.S. Wang, C.F. Wu, X.L. Feng, L.C. Kwek, C.H. Lai, C.H. Oh, V. Vedral. (2008). Geometric phase induced by quantum nonlocality. Phys. Lett. A 372 775-778
  • D.M. Tong, X. Yi, X.J. Fan, L.C. Kwek, C.H. Oh. (2008). Examination of the adiabatic approximation in open systems. Phys. Lett. A 372 2364
  • B.-G. Englert, D. Kaszlikowski, L.C. Kwek, W.H. Chee. (2008). Wave-particle duality in multi-path interferometers: General concepts and three-path interferometers. Int. J. Quant. Info. 6 129-157
  • J.L. Chen, C.F. Wu, L.C. Kwek, C.H. Oh. (2008). Bell inequalities for three particles. Phys. Rev. A 78 032107
  • X.L. Feng, J. Qian, L.C. Kwek, C.H. Oh. (2008). Repeat-until-success distributed quantum computation by using single-photon interference at a beam splitter. Phys. Rev. A 78 012354
  • C.F. Wu, J.L. Chen, L.C. Kwek, C.H. Oh. (2008). Correlation-function Bell inequality with improved visibility for three qubits. Phys. Rev. A 77 062309
  • T. Durt, L.C. Kwek, D. Kaszlikowski. (2008). Generalized flying-qudit scheme in arbitrary dimensions. Phys. Rev. A 77 042318
  • D.M. Tong, K. Singh, L.C. Kwek, C.H. Oh. (2007). Sufficiency Criterion for the Validity of the Adiabatic Approximation. Phys. Rev. Lett. 150402
  • C.F. Wu, L.C. Kwek, C.H. Oh. (2007). Quantum nonlocality of four-qubit entangled states. Phys. Rev. A 75 032332
  • X. Yi, D.M. Tong, L.C. Kwek, C.H. Oh. (2007). Adiabatic approximation in open systems: an alternative approach . J. Phys. B: At. Mol. Opt. Phys. 40 281-291
  • Z.S. Wang, C.F. Wu, X.L. Feng, L.C. Kwek, C.H. Lai, C.H. Oh. (2007). Effects of a squeezed-vacuum reservoir on geometric phase. Phys. Rev. A 75 024102
  • X.L. Feng, Z.S. Wang, C.F. Wu, L.C. Kwek, C.H. Lai, C.H. Oh. (2007). Scheme for unconventional geometric quantum computation in cavity QED. Phys. Rev. A 75 052312
  • C.F. Wu, Z.S. Wang, X.L. Feng, H.S. Goan, L.C. Kwek, C.H. Oh. (2007). Unconventional geometric quantum computation in a two-mode cavity. Phys. Rev. A 76 024302
  • Z.S. Wang, C.F. Wu, X.L. Feng, L.C. Kwek, C.H. Lai, C.H. Oh, V. Vedral. (2007). Nonadiabatic geometric quantum computation. Phys. Rev. A 76 044303
  • C.F. Wu, J. L. Chen, L.C. Kwek, C.H. Oh. (2006). Quantum nonlocality of N-qubit W state. Phys. Rev. A 73 012310
  • J. L. Chen, C.F. Wu, L.C. Kwek, C.H. Oh, M. L. Ge. (2006). Violating Bell inequalities maximally for two d-dimensional systems. Phys. Rev. A 74 032106
  • X. Yi, D.M. Tong, L.C. Wang, L.C. Kwek, C.H. Oh. (2006). Geometric phase in open systems: Beyond the Markov approximation and weak-coupling limit . Phys. Rev. A 73 052103
  • D.M. Tong, K. Singh, L.C. Kwek, C.H. Oh. (2005). Quantitative conditions do not guarantee the validity of the adiabatic approximation. Phys. Rev. Lett. 110407
  • C.F. Wu, J. L. Chen, L.C. Kwek, C.H. Oh, K. Xue. (2005). Continuous multipartite entangled state in the Wigner representation and violation of Zukowski-Brunker inequality. Phys. Rev. A 71 022110
  • J. L. Chen, C.F. Wu, L.C. Kwek, D. Kaszlikowski, M. Zukowski, C.H. Oh. (2005). Multi-component Bell inequality and its violation for continuous-variable systems. Phys. Rev. A 71 032107
  • D.M. Tong, L.C. Kwek, C.H. Oh, J L Chen, L Ma. (2004). Operator-sum representation of time-dependent density operators . Phys. Rev. A 054102
  • D.M. Tong, E. Sjoqvist, S. Filipp, L.C. Kwek, C.H. Oh. (2004). Kinematic approach to off-diagonal geometric phases of nondegenerate and degenerate mixed . Phys. Rev. Lett. 080405
  • D. Gosal, D. Kaszlikowski, L.C. Kwek, M. Zukowski, C.H. Oh. (2004). Asymmetric multipartite Greenberger-Horne-Zeilinger states and Bell inequalities. Phys. Rev. A 70 042106
  • C.F. Wu, J. L. Chen, D.M. Tong, L.C. Kwek, C.H. Oh. (2004). Quantum nonlocality of Heisenberg XX model with site-dependent coupling strength. J. Phys. A: Math. Gen. 37 11475
  • J. L. Chen, C.F. Wu, L.C. Kwek, C.H. Oh. (2004). Gisin\'s theorem for three qubits. Phys. Rev. Lett. 93 140407
  • D.M. Tong, E. Sjoqvist, L.C. Kwek, C.H. Oh, M. Ericsson. (2003). Relation between the geometric phases of the entangled biparticle system and their subsystems. Phys. Rev. A 022106
  • D.M. Tong, J L Chen, L.C. Kwek, C.H. Lai, C.H. Lai, C.H. Oh. (2003). General formalism of Hamiltonians for realizing a prescribed evolution of a qubit . Phys. Rev. A 062307

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