Browse by Author or creator

2024

Pelegrí, G. and Flannigan, S. and Daley, A. J. (2024) Few-body bound topological and flat-band states in a Creutz ladder. Physical Review B, 109 (23). 235412. ISSN 1098-0121

Di Carli, Andrea and Parsonage, Christopher and La Rooij, Arthur and Koehn, Lennart and Ulm, Clemens and Duncan, Callum and Daley, Andrew and Haller, Elmar and Kuhr, Stefan (2024) Commensurate and incommensurate 1D interacting quantum systems. Nature Communications, 15 (1). 474. ISSN 2041-1723

2023

Kuriyattil, Sridevi and Hashizume, Tomohiro and Bentsen, Gregory and Daley, Andrew J. (2023) Onset of scrambling as a dynamical transition in tunable-range quantum circuits. PRX Quantum, 4 (3). 030325. ISSN 2691-3399

Lepori, Luca and Trombettoni, Andrea and Giuliano, Domenico and Kombe, Johannes and Yago Malo, Jorge and Daley, Andrew J and Smerzi, Augusto and Luisa Chiofalo, Maria (2023) Can multipartite entanglement be characterized by two-point connected correlation functions? Journal of Physics A: Mathematical and Theoretical, 56 (30). 305302. ISSN 1751-8113

Dimitrova, Ivana and Flannigan, Stuart and Lee, Yoo Kyung and Lin, Hanzhen and Amato-Grill, Jesse and Jepsen, Niklas and Cepaite, Ieva and Daley, Andrew J and Ketterle, Wolfgang (2023) Many-body spin rotation by adiabatic passage in spin-1/2 XXZ chains of ultracold atoms. Quantum Science and Technology, 8 (3). 035018. ISSN 2058-9565

Marques, A. M. and Mögerle, J. and Pelegrí, G. and Flannigan, S. and Dias, R. G. and Daley, A. J. (2023) Kaleidoscopes of Hofstadter butterflies and Aharonov-Bohm caging from 2n-root topology in decorated square lattices. Physical Review Research, 5 (2). 023110. ISSN 2643-1564

Jaksch, Dieter and Givi, Peyman and Daley, Andrew J. and Rung, Thomas (2023) Variational quantum algorithms for computational fluid dynamics. AIAA Journal, 61 (5). pp. 1885-1894. ISSN 0001-1452

Čepaitė, Ieva and Polkovnikov, Anatoli and Daley, Andrew J. and Duncan, Callum W. (2023) Counterdiabatic optimized local driving. PRX Quantum, 4 (1). 010312. ISSN 2691-3399

2022

Flannigan, S and Pearson, N and Low, G H and Buyskikh, A and Bloch, I and Zoller, P and Troyer, M and Daley, A J (2022) Propagation of errors and quantitative quantum simulation with quantum advantage. Quantum Science and Technology, 7 (4). 045025. ISSN 2058-9565

Pelegrí, G and Daley, A J and Pritchard, J D (2022) High-fidelity multiqubit Rydberg gates via two-photon adiabatic rapid passage. Quantum Science and Technology, 7 (4). 045020. ISSN 2058-9565

Daley, Andrew J. and Bloch, Immanuel and Kokail, Christian and Flannigan, Stuart and Pearson, Natalie and Troyer, Matthias and Zoller, Peter (2022) Practical quantum advantage in quantum simulation. Nature, 607 (7920). pp. 667-676. ISSN 0028-0836

Dutta, Shovan and Buyskikh, Anton and Daley, Andrew J. and Mueller, Erich J. (2022) Density matrix renormalization group for continuous quantum systems. Physical Review Letters, 128 (23). 230401. ISSN 1079-7114

Link, Valentin and Müller, Kai and Lena, Rosaria G. and Luoma, Kimmo and Damanet, François and Strunz, Walter T. and Daley, Andrew J. (2022) Non-Markovian quantum dynamics in strongly coupled multimode cavities conditioned on continuous measurement. PRX Quantum, 3 (2). 020348. ISSN 2691-3399

Hashizume, Tomohiro and Kuriyattil, Sridevi and Daley, Andrew J. and Bentsen, Gregory (2022) Tunable geometries in sparse Clifford circuits. Symmetry, 14 (4). 666. ISSN 2073-8994

Hashizume, Tomohiro and Bentsen, Gregory S. and Daley, Andrew J. (2022) Measurement-induced phase transitions in sparse nonlocal scramblers. Physical Review Research, 4 (1). 013174. ISSN 2643-1564

Flannigan, S and Damanet, F and Daley, A. J. (2022) Many-body quantum state diffusion for non-Markovian dynamics in strongly interacting systems. Physical Review Letters, 128 (6). 063601. ISSN 1079-7114

2021

Damanet, François and Mansfield, Elliott and Briggeman, Megan and Irvin, Patrick and Levy, Jeremy and Daley, Andrew J. (2021) Spin-orbit-assisted electron pairing in one-dimensional waveguides. Physical Review B, 104 (12). 125103. ISSN 2469-9950

Flannigan, S and Madail, L and Dias, R G and Daley, A J (2021) Hubbard models and state preparation in an optical Lieb lattice. New Journal of Physics, 23 (8). 083014. ISSN 1367-2630

Briggeman, Megan and Lee, Hyungwoo and Lee, Jung Woo and Eom, Kitae and Damanet, François and Mansfield, Elliott and Li, Jianan and Huang, Mengchen and Daley, Andrew J. and Eom, Chang Beom and Irvin, Patrick and Levy, Jeremy (2021) One-dimensional Kronig–Penney superlattices at the LaAlO3/SrTiO3 interface. Nature Physics, 17 (7). pp. 782-787. ISSN 1745-2473

Hashizume, Tomohiro and Bentsen, Gregory S. and Weber, Sebastian and Daley, Andrew J. (2021) Deterministic fast scrambling with neutral atom arrays. Physical Review Letters, 126 (20). 200603. ISSN 1079-7114

2020

Derbyshire, E and Malo, J Yago and Daley, A J and Kashefi, E and Wallden, P (2020) Erratum : Randomized benchmarking in the analogue setting (2020 Quantum Sci. Technol. 5 034001). Quantum Science and Technology, 5 (4). 049601. ISSN 2058-9565

Becher, J. H. and Sindici, E. and Klemt, R. and Jochim, S. and Daley, A. J. and Preiss, P. M. (2020) Measurement of identical particle entanglement and the influence of antisymmetrization. Physical Review Letters, 125 (18). 180402. ISSN 1079-7114

Di Carli, Andrea and Henderson, Grant and Flannigan, Stuart and Colquhoun, Craig D. and Mitchell, Matt and Oppo, Gian-Luca and Daley, Andrew J. and Kuhr, Stefan and Haller, Elmar (2020) Collisionally inhomogeneous Bose-Einstein condensates with a linear interaction gradient. Physical Review Letters, 125 (18). 183602. ISSN 1079-7114

Mark, M. J. and Flannigan, S. and Meinert, F. and D'Incao, J. P. and Daley, A. J. and Nägerl, H.-C. (2020) Interplay between coherent and dissipative dynamics of bosonic doublons in an optical lattice. Physical Review Research, 2 (4). 043050. ISSN 2643-1564

Venegas-Gomez, Araceli and Schachenmayer, Johannes and Buyskikh, Anton S and Ketterle, Wolfgang and Chiofalo, Maria Luisa and Daley, Andrew J (2020) Adiabatic preparation of entangled, magnetically ordered states with cold bosons in optical lattices. Quantum Science and Technology, 5 (4). 045013.

Flannigan, Stuart and Daley, Andrew J (2020) Enhanced repulsively bound atom pairs in topological optical lattice ladders. Quantum Science and Technology, 5 (4). 045017.

Givi, Peyman and Daley, Andrew J. and Mavriplis, Dimitri and Malik, Mujeeb (2020) Quantum speedup for aeroscience and engineering. AIAA Journal, 58 (8). pp. 3715-3727. ISSN 0001-1452

Venegas-Gomez, Araceli and Buyskikh, Anton S. and Schachenmayer, Johannes and Ketterle, Wolfgang and Daley, Andrew J. (2020) Dynamics of rotated spin states and magnetic ordering with two-component bosonic atoms in optical lattices. Physical Review A, 102 (2). 023321. ISSN 2469-9926

Sarkar, S and McEndoo, S and Schneble, D and Daley, A J (2020) Interspecies entanglement with impurity atoms in a lattice gas. New Journal of Physics, 22. 083017. ISSN 1367-2630

Derbyshire, E. and Malo, J. Yago and Daley, A. J. and Kashefi, E. and Wallden, P. (2020) Randomized benchmarking in the analogue setting. Quantum Science and Technology, 5 (3). 034001.

Lena, R. G. and Daley, A. J. (2020) Dissipative dynamics and cooling rates of trapped impurity atoms immersed in a reservoir gas. Physical Review A - Atomic, Molecular, and Optical Physics, 101 (3). 033612. ISSN 1050-2947

2019

Mukherjee, S. and Myers, D. M. and Lena, R. G. and Ozden, B. and Beaumariage, J. and Sun, Z. and Steger, M. and Pfeiffer, L. N. and West, K. and Daley, A. J. and Snoke, D. W. (2019) Observation of nonequilibrium motion and equilibration in polariton rings. Physical Review B, 100 (24). 245304. ISSN 2469-9950

Walker, L. S. and Robb, G. R. M. and Daley, A. J. (2019) Measurement and feedback for cooling heavy levitated particles in low-frequency traps. Physical Review A, 100 (6). 063819. ISSN 1050-2947

Damanet, Francois and Mascarenhas, Eduardo and Pekker, David and Daley, Andrew J (2019) Reservoir engineering of Cooper-pair-assisted transport with cold atoms. New Journal of Physics, 21. 115001. ISSN 1367-2630

Damanet, Francois and Mascarenhas, Eduardo and Pekker, David and Daley, Andrew (2019) Controlling quantum transport via dissipation engineering. Physical Review Letters, 123 (18). 180402. ISSN 1079-7114

Bentsen, Gregory and Hashizume, Tomohiro and Buyskikh, Anton S. and Davis, Emily J. and Daley, Andrew J. and Gubser, Steven S. and Schleier-Smith, Monika (2019) Treelike interactions and fast scrambling with cold atoms. Physical Review Letters, 123 (13). 130601. ISSN 1079-7114

Carli, Andrea Di and Colquhoun, Craig D. and Henderson, Grant and Flannigan, Stuart and Oppo, Gian-Luca and Daley, Andrew J. and Kuhr, Stefan and Haller, Elmar (2019) Excitation modes of bright matter-wave solitons. Physical Review Letters, 123 (12). 123602. ISSN 1079-7114

Madail, L. and Flannigan, S. and Marques, A. M. and Daley, A. J. and Dias, R. G. (2019) Enhanced localization and protection of topological edge states due to geometric frustration. Physical Review B, 100 (12). 125123. ISSN 2469-9950

Buyskikh, Anton S. and Tagliacozzo, Luca and Schuricht, Dirk and Hooley, Chris A. and Pekker, David and Daley, Andrew J. (2019) Resonant two-site tunneling dynamics of bosons in a tilted optical superlattice. Physical Review A, 100 (2). 023627. ISSN 2469-9926

Buyskikh, Anton S. and Tagliacozzo, Luca and Schuricht, Dirk and Hooley, Chris A. and Pekker, David and Daley, Andrew J. (2019) Spin models, dynamics, and criticality with atoms in tilted optical superlattices. Physical Review Letters, 123 (9). 090401. ISSN 1079-7114

Pelegrí, G. and Mompart, J. and Ahufinger, V. and Daley, A. J. (2019) Quantum magnetism with ultracold bosons carrying orbital angular momentum. Physical Review A, 100 (2). 023615. ISSN 2469-9926

Mascarenhas, Eduardo and Damanet, François and Flannigan, Stuart and Tagliacozzo, Luca and Daley, Andrew J. and Goold, John and De Vega, Inés (2019) Nonreciprocal quantum transport at junctions of structured leads. Physical Review B, 99 (24). 245134. ISSN 2469-9950

Xu, Guanglei and Daley, Andrew J. and Givi, Peyman and Somma, Rolando D. (2019) Quantum algorithm for the computation of the reactant conversion rate in homogeneous turbulence. Combustion Theory and Modelling, 23 (6). pp. 1090-1104. ISSN 1741-3559

Damanet, François and Daley, Andrew J. and Keeling, Jonathan (2019) Atom-only descriptions of the driven-dissipative Dicke model. Physical Review A, 99 (3). 033845. ISSN 2469-9934

Pelegrí, G. and Marques, A. M. and Dias, R. G. and Daley, A. J. and Mompart, J. and Ahufinger, V. (2019) Topological edge states and Aharanov-Bohm caging with ultracold atoms carrying orbital angular momentum. Physical Review A, 99 (2). 023613. ISSN 2469-9926

Pelegrí, G. and Marques, A. M. and Dias, R. G. and Daley, A. J. and Ahufinger, V. and Mompart, J. (2019) Topological edge states with ultracold atoms carrying orbital angular momentum in a diamond chain. Physical Review A, 99 (2). 023612. ISSN 2469-9926

2018

Yago Malo, J. and van Nieuwenburg, E. P. L. and Fischer, M. H. and Daley, A. J. (2018) Particle statistics and lossy dynamics of ultracold atoms in optical lattices. Physical Review A, 97 (5). 053614. ISSN 2469-9926

Daley, A. J.; Calarco, T. and Fazio, R. and Mataloni, P., eds. (2018) Theoretical aspects of analogue quantum simulation. In: Quantum Simulators. Proceedings of the International School of Physics "Enrico Fermi" . IOS Press, ITA, pp. 55-110. ISBN 978-1-61499-855-6

Xu, Guanglei and Daley, Andrew J. and Givi, Peyman and Somma, Rolando D. (2018) Turbulent mixing simulation via a quantum algorithm. AIAA Journal, 56 (2). pp. 687-699. ISSN 0001-1452

Kantian, A. and Langer, S. and Daley, A. J. (2018) Dynamical disentangling and cooling of atoms in bilayer optical lattices. Physical Review Letters, 120 (6). 060401. ISSN 1079-7114

2017

Su, Zhaoen and Tacla, Alexandre B. and Hocevar, Moïra and Car, Diana and Plissard, Sébastien R. and Bakkers, Erik P. A. M. and Daley, Andrew J. and Pekker, David and Frolov, Sergey M. (2017) Andreev molecules in semiconductor nanowire double quantum dots. Nature Communications, 8. 585. ISSN 2041-1723

Lanyon, B. P. and Maier, C. and Holzäpfel, M. and Baumgratz, T. and Hempel, C. and Jurcevic, P. and Dhand, I. and Buyskikh, A. S. and Daley, A. J. and Cramer, M. and Plenio, M B and Blatt, R. and Roos, C. F. (2017) Efficient tomography of a quantum many-body system. Nature Physics, 13. 1158–1162. ISSN 1745-2473

Lüschen, Henrik P. and Bordia, Pranjal and Hodgman, Sean S. and Schreiber, Michael and Sarkar, Saubhik and Daley, Andrew J. and Fischer, Mark H. and Altman, Ehud and Bloch, Immanuel and Schneider, Ulrich (2017) Signatures of many-body localization in a controlled open quantum system. Physical Review X, 7 (1). 011034. ISSN 2160-3308

2016

Cheng, Guanglei and Tomczyk, Michelle and Tacla, Alexandre B. and Lee, Hyungwoo and Lu, Shicheng and Veazey, Josh P. and Huang, Mengchen and Irvin, Patrick and Ryu, Sangwoo and Eom, Chang-Beom and Daley, Andrew and Pekker, David and Levy, Jeremy (2016) Tunable electron-electron interactions in LaAlO3/SrTiO3 nanostructures. Physical Review X, 6 (4). 041042. ISSN 2160-3308

Buyskikh, Anton and Fagotti, Maurizio and Schachenmayer, Johannes and Essler, Fabian and Daley, Andrew J. (2016) Entanglement growth and correlation spreading with variable-range interactions in spin and fermionic tunneling models. Physical Review A, 93 (5). 053620. ISSN 2469-9934

Meinert, F. and Mark, M. J. and Lauber, K. and Daley, A. J. and Nägerl, H.-C. (2016) Floquet engineering of correlated tunneling in the Bose-Hubbard model with ultracold atoms. Physical Review Letters, 116 (20). 205301. ISSN 1079-7114

2015

Schachenmayer, Johannes and Weld, David M. and Miyake, Hirokazu and Siviloglou, Georgios A. and Ketterle, Wolfgang and Daley, Andrew J. (2015) Adiabatic cooling of bosons in lattices to magnetically ordered quantum states. Physical Review A, 92 (4). 041602. ISSN 1050-2947

Pichler, Hannes and Ramos, Tomás and Daley, Andrew J. and Zoller, Peter (2015) Quantum optics of chiral spin networks. Physical Review A, 91 (4). 042116. ISSN 1050-2947

Liu, Gangqiang and Snoke, David W. and Daley, Andrew and Pfeiffer, Loren N. and West, Ken (2015) A new type of half-quantum circulation in a macroscopic polariton spinor ring condensate. Proceedings of the National Academy of Sciences, 112 (9). pp. 2676-2681. ISSN 0027-8424

2014

Ramos, Tomás and Pichler, Hannes and Daley, Andrew J. and Zoller, Peter (2014) Quantum spin dimers from chiral dissipation in cold-atom chains. Physical Review Letters, 113 (23). 237203. ISSN 1079-7114

Daley, A J and Rigol, M and Weiss, D S (2014) Focus on out-of-equilibrium dynamics in strongly interacting one-dimensional systems. New Journal of Physics, 16. 095006. ISSN 1367-2630

Sarkar, S. and Langer, S. and Schachenmayer, J. and Daley, A. J. (2014) Light scattering and dissipative dynamics of many fermionic atoms in an optical lattice. Physical Review A, 90 (2). 023618. ISSN 1050-2947

Daley, Andrew J. (2014) Quantum trajectories and open many-body quantum systems. Advances in Physics, 63 (2). pp. 77-149. ISSN 0001-8732

Meinert, Florian and Mark, Manfred J. and Kirilov, Emil and Lauber, Katharina and Weinmann, Philipp and Gröbner, Michael and Daley, Andrew J. and Nägerl, Hanns Christoph (2014) Observation of many-body dynamics in long-range tunneling after a quantum quench. Science, 344 (6189). pp. 1259-1262. ISSN 0036-8075

Daley, Andrew J. and Simon, Jonathan (2014) Effective three-body interactions via photon-assisted tunneling in an optical lattice. Physical Review A, 89 (5). 053619. ISSN 1050-2947

Schachenmayer, J. and Pollet, L. and Troyer, M. and Daley, A. J. (2014) Spontaneous emission and thermalization of cold bosons in optical lattices. Physical Review A, 89 (1). 011601. ISSN 1050-2947

2013

Schachenmayer, J. and Lanyon, B. P. and Roos, C. F. and Daley, A. J. (2013) Entanglement growth in quench dynamics with variable range interactions. Physical Review X, 3 (3). 031015. ISSN 2160-3308

Meinert, F. and Mark, M.J. and Kirilov, E. and Lauber, K. and Weinmann, P. and Daley, A.J. and Nägerl, H.-C. (2013) Quantum quench in an atomic one-dimensional Ising chain. Physical Review Letters, 111 (5). 053003. ISSN 1079-7114

Pichler, Hannes and Bonnes, Lars and Daley, Andrew J and Läuchli, Andreas M and Zoller, Peter (2013) Thermal versus entanglement entropy : a measurement protocol for fermionic atoms with a quantum gas microscope. New Journal of Physics, 15. 063003. ISSN 1367-2630

Pichler, H. and Schachenmayer, J. and Daley, A.J. and Zoller, P. (2013) Heating dynamics of bosonic atoms in a noisy optical lattice. Physical Review A, 87 (3). 033606. ISSN 1050-2947

2012

Foss-Feig, M. and Daley, Andrew and Thompson, J.K. and Rey, A.M. (2012) Steady-state many-body entanglement of hot reactive fermions. Physical Review Letters, 109 (23). 230501. ISSN 1079-7114

Pichler, H. and Schachenmayer, J. and Simon, J. and Zoller, P. and Daley, A.J. (2012) Noise- and disorder-resilient optical lattices. Physical Review A, 86 (5). 051605. ISSN 1050-2947

Daley, A.J. and Pichler, H. and Schachenmayer, J. and Zoller, P. (2012) Measuring entanglement growth in quench dynamics of bosons in an optical lattice. Physical Review Letters, 109 (2). 020505. ISSN 1079-7114

Mark, M. J. and Haller, E. and Lauber, K. and Danzl, J. G. and Janisch, A. and Buechler, H. P. and Daley, Andrew and Naegerl, H. -C. (2012) Preparation and spectroscopy of a metastable Mott-insulator state with attractive interactions. Physical Review Letters, 108 (21). 215302. ISSN 1079-7114

2011

Daley, A.J. (2011) Quantum computing and quantum simulation with group-II atoms. Quantum Information Processing, 10 (6). pp. 865-884. ISSN 1570-0755

Daley, A. J. and Ye, J. and Zoller, P. (2011) State-dependent lattices for quantum computing with alkaline-earth-metal atoms. European Physical Journal D: Atomic, Molecular, Optical and Plasma Physics, 65 (1-2). pp. 207-217. ISSN 1434-6060

Mark, M.J. and Haller, Elmar and Lauber, K. and Danzl, J.G. and Daley, Andrew and Nägerl, H.-C. (2011) Precision measurements on a tunable Mott insulator of ultracold atoms. Physical Review Letters, 107 (17). 175301. ISSN 1079-7114

Titvinidze, I and Privitera, A and Chang, S-Y and Diehl, S and Baranov, M A and Daley, A and Hofstetter, W (2011) Magnetism and domain formation in SU(3)-symmetric multi-species Fermi mixtures. New Journal of Physics, 13. 035013. ISSN 1367-2630

2010

Pichler, H. and Daley, A.J. and Zoller, P. (2010) Nonequilibrium dynamics of bosonic atoms in optical lattices : decoherence of many-body states due to spontaneous emission. Physical Review A, 82 (6). ISSN 1050-2947

Diehl, S. and Yi, W. and Daley, Andrew and Zoller, P. (2010) Dissipation-induced d-wave pairing of fermionic atoms in an optical lattice. Physical Review Letters, 105 (22). 227001. ISSN 1079-7114

Schachenmayer, J. and Lesanovsky, I. and Micheli, A. and Daley, A.J. (2010) Dynamical crystal creation with polar molecules or Rydberg atoms in optical lattices. New Journal of Physics, 12 (10). 103044. ISSN 1367-2630

Gustavsson, Mattias and Haller, Elmar and Mark, Manfred J. and Danzl, Johann G. and Hart, Russell and Daley, Andrew J. and Nägerl, Hanns-Christoph (2010) Interference of interacting matter waves. New Journal of Physics, 12. 065029. ISSN 1367-2630

Kantian, A. and Daley, Andrew and Zoller, P. (2010) η condensate of fermionic atom pairs via adiabatic state preparation. Physical Review Letters, 104 (24). ISSN 1079-7114

Diehl, S. and Baranov, M. and Daley, A.J. and Zoller, P. (2010) Observability of quantum criticality and a continuous supersolid in atomic gases. Physical Review Letters, 104 (16). 165301. ISSN 1079-7114

2009

Kantian, A. and Dalmonte, M. and Diehl, S. and Hofstetter, W. and Zoller, P. and Daley, A.J. (2009) Atomic color superfluid via three-body loss. Physical Review Letters, 103 (24). ISSN 1079-7114

Han, Y.-J. and Chan, Y.-H. and Duan, L.-M. and Yi, W. and Daley, A.J. and Diehl, S. and Zoller, P. (2009) Stabilization of the p-wave superfluid state in an optical lattice. Physical Review Letters, 103 (7). ISSN 1079-7114

Gorshkov, A.V. and Lukin, M.D. and Rey, A.M. and Boyd, M.M. and Ye, J. and Daley, A.J. and Zoller, P. (2009) Alkaline-earth-metal atoms as few-qubit quantum registers. Physical Review Letters, 102 (11). ISSN 1079-7114

Daley, A.J. and Taylor, J.M. and Diehl, S. and Baranov, M. and Zoller, P. (2009) Atomic three-body loss as a dynamical three-body interaction. Physical Review Letters, 102 (4). 040402. ISSN 1079-7114

2008

Daley, A.J. and Boyd, M.M. and Ye, J. and Zoller, P. (2008) Quantum computing with alkaline-earth-metal atoms. Physical Review Letters, 101 (17). 170504. ISSN 1079-7114

Daley, Andrew and Zoller, P. and Trauzettel, B. (2008) Andreev-like reflections with cold atoms. Physical Review Letters, 100 (11). 110404-1-110404-4. ISSN 1079-7114

2004

Daley, AJ and Kollath, C and Schollwock, U and Vidal, G (2004) Time-dependent density-matrix renormalization-group using adaptive effective Hilbert spaces. Journal of Statistical Mechanics: Theory and Experiment, 2004. P04005. ISSN 1742-5468