QUANTUM INFORMATION AND QUANTUM SIMULATIONS | IMSc

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    Recent pre-prints

  1. Accelerated quantum walk, two-particle entanglement generation and localization
    Shivani Singh, Radhakrishnan Balu, Raymond Laflamme, C. M. Chandrashekar
  2. Multi-bit quantum random number generator from a single qubit quantum walk
    Anupam Sarkar, C. M. Chandrashekar
  3. Quantum probes for quantum wells
    Ilaria Pizio, Shivani Singh, C. M. Chandrashekar, Matteo G. A. Paris
  4. Simulating Dirac Hamiltonian in curved space-time by split-step quantum Walk
    Arindam Mallick, Sanjoy Mandal, Anirban Karan, C. M. Chandrashekar
  5. Interference and correlated coherence in disordered and localized quantum walk
    Shinvani Singh, C. M. Chandrashekar
  6. In refereed journals

  7. Enhanced non-Markovian behavior in quantum walks with Markovian disorder
    N. Pradeep Kumar, Subhashish Banerjee, C. M. Chandrashekar
  8. Bounds on the dynamics of periodic quantum walks and emergence of gapless and gapped Dirac equation
    N. Pradeep Kumar, Radhakrishna Balu, Raymond Laflamme, C. M. Chandrashekar
  9. Quantum ratchet in disordered quantum walk
    Sagnik Chakraborty, Arpan Das, Arindam Mallick, C. M. Chandrashekar
  10. Dynamics and energy spectra of aperiodic discrete-time quantum walks
    N. Lo Gullo, C. V. Ambarish, Th. Busch, L. Dell'Anna, C. M. Chandrashekar
  11. Neutrino oscillations in discrete-time quantum walk framework
    Arindam Mallick, Sanjoy Mandal, C. M. Chandrashekar
  12. Dirac Quantum Cellular Automaton from Split-step Quantum Walk
    Arindam Mallick, C. M. Chandrashekar
  13. Localization and limit laws of a three-state alternate quantum walk on a two-dimensional lattice
    Takuya Machida, C. M. Chandrashekar
  14. Limit distributions for different forms of four-state quantum walks on a two-dimensional lattice
    T. Machida, C. M. Chandrashekar, N. Konno, Th. Busch
  15. Localized quantum walks as secured quantum memory
    C. M. Chandrashekar, Th. Busch
  16. Quantum percolation and transition point of a directed discrete-time quantum walk
    C. M. Chandrashekar, Th. Busch
  17. Single photons in an imperfect array of beam-splitters: Interplay between percolation, backscattering and transient localization
    C. M. Chandrashekar, S. Melville, Th. Busch
  18. Noise-enhanced quantum transport on a closed loop using quantum walks
    C. M. Chandrashekar, Th. Busch
  19. Two-component Dirac-like Hamiltonian for generating quantum walk on one-, two- and three-dimensional lattices
    C. M. Chandrashekar
  20. Enhancement of Geometric Phase by Frustration of Decoherence: A Parrondo like Effect
    Subhashish Banerjee, C. M. Chandrashekar, Arun K. Pati
  21. Decoherence on a two-dimensional quantum walk using four- and two-state particle
    C. M. Chandrashekar, Th. Busch
  22. Quantum walk on distinguishable non-interacting many-particles and indistinguishable two-particle
    C. M. Chandrashekar, Th. Busch
  23. Hamilton's turns as visual tool-kit for designing of single-qubit unitary gates
    B. Neethi Simon, C. M. Chandrashekar, Sudhavathani Simon
  24. Entanglement generation in spatially separated systems using quantum walk
    C. M. Chandrashekar, Sandeep Goyal, and Subhashish Banerjee
  25. Quantumness of noisy quantum walks : a comparison between measurement-induced disturbance and quantum discord
    Balaji R. Rao, R. Srikanth, C. M. Chandrashekar and Subhashish Banerjee
  26. Parrondo's game using a discrete-time quantum walk
    C. M. Chandrashekar and Subhashish Banerjee
  27. Disordered-quantum-walk-induced localization of a Bose-Einstein condensate
    C. M. Chandrashekar
  28. Zeno subspace in quantum-walk dynamics
    C. M. Chandrashekar
  29. Relationship between quantum walks and relativistic quantum mechanics
    C. M. Chandrashekar, Subhashish Banerjee, and R. Srikanth
  30. Quantumness in decoherent quantum walk using measurement-induced disturbance
    R. Srikanth, Subhashish Banerjee, and C. M. Chandrashekar
  31. Spatial entanglement using quantum walk on a many-body system
    Sandeep K. Goyal and C. M. Chandrashekar
  32. Fractional recurrence in discrete-time quantum walk
    C. M. Chandrashekar
  33. Quantum data bus in dipolar coupled nuclear spin qubits
    Jingfu Zhang, Michael Ditty, Daniel Burgarth, Colm A. Ryan, C. M. Chandrashekar, Martin Laforest, Osama Moussa, Jonathan Baugh, and Raymond Laflamme
  34. Direct observation of quantum criticality in Ising spin chains
    Jingfu Zhang, Fernando M. Cucchietti, C. M. Chandrashekar, Martin Laforest, Colm A. Ryan, Michael Ditty, Adam Hubbard, John K. Gamble, Raymond Laflamme
  35. Symmetry-noise interplay in quantum walk on an n-cycle
    Subhashish Banerjee, R. Srikanth, C. M. Chandrashekar, and Pranaw Rungta
  36. Generic quantum walk using a coin-embedded shift operator
    C. M. Chandrashekar
  37. Quantum phase transition using quantum walks in an optical lattice
    C. M. Chandrashekar and Raymond Laflamme
  38. Optimizing the discrete time quantum walk using a SU(2) coin
    C. M. Chandrashekar, R. Srikanth and Raymond Laflamme
  39. Quantum information processing using nuclear and electron magnetic resonance: review and prospects
    J. Baugh, J. Chamilliard, C. M. Chandrashekar, M. Ditty, A. Hubbard, M. Laforest, D. Maslov, C. Negrevergne, M. Silva, S. Simmons, C. A. Ryan, R. Laflamme, J. S. Hodges, C. Ramanathan, and D. G. Cory
  40. Symmetries and noise in quantum walk
    C. M. Chandrashekar, R. Srikanth, and S. Banerjee
  41. Implementing the one-dimensional quantum (Hadamard) walk using a Bose-Einstein condensate
    C. M. Chandrashekar
  42. Dynamic Manipulation of Bose-Einstein Condensates with a Spatial Light Modulator
    V. Boyer, R. M. Godun, G. Smirne, D. Cassettari, C. M. Chandrashekar, A.B. Deb, Z.J. Laczik and C. J. Foot
  43. Dynamic optical trap generation using FLC SLMs for the manipulation of cold atoms
    V. Boyer, C. M. Chandrashekar, C.J. Foot and Z.J. Laczik

  44. Pre-prints submitted for publication

  45. Entanglement Properties of Localized States in 1D Topological Quantum Walks
    C. M. Chandrashekar, H. Obuse, Th. Busch
  46. Disorder induced localization and enhancement of entanglement in one- and two-dimensional quantum walks
    C. M. Chandrashekar