Associate Professor
colin@niser.ac.in
Research/Employment
July 2019 - Continuing
Associate Professor, SPS, NISER, Bhubaneswar, India. Research in theoretical nanoscience, quantum information theory, and game theory.
July 2013 - June 2019
Reader-F, SPS, NISER, Bhubaneswar, India. Research in condensed matter theory and quantum information.
June 2011 - June 2013
Assistant Professor, SPS, NISER, Bhubaneswar, India. Research in condensed matter theory and quantum information.
Dec’2009-Dec’2010
Postdoctoral Research Associate, Dept. of Phys. & Ast., Univ. of Georgia, Athens, USA. Research in quantum simulations.
Oct’2007-Sep’2009
Postdoctoral Research Fellow, Quantum Information Group, School of Phys. & Ast., Univ. of Leeds, UK. Research in topological quantum computation.
Oct’2005-Sep’2007
CNRS Postdoctoral Fellow, Centre de Physique Theorique, CNRS, Marseille, France. Research in molecular electronics.
Sep’2004-Aug’2005
Research Fellow, Dept. of Physics, Univ. of Salerno, Italy. Research in electron transport in mesostructures.
Education
2000-2004 Ph.D. (Physics)[Submitted: Sep. 2004] Awarded: Aug. 2005, Institute of Physics, Bhubaneswar, India. Thesis Title: Electron Transport and Quantum interference at the mesoscopic scale.
1999-2000 Diploma in Advanced Physics (equivalent to M. Phil.), 2000, Institute of Physics, Bhubaneswar, India.
1997-1999 M. Sc. Physics (specialization in Solid state Physics), 1999, Dept. of Physics, Utkal University, Bhubaneswar, India, I was ranked second in the university.
1994-1997 B. Sc. Physics (Honours), 1997, B. J. B College, Utkal University, Bhubaneswar, I secured the first position in the university and was awarded the Gold medal.
Mathematical Methods, Quantum and Nanoelectronics, Quantum Information and quantum Computation, Electromagnetism, Electronics, Nonlinear Dynamics and Chaos, Quantum Mechanics, Mesoscopic Physics, Experimental Lab, Computational Physics Lab.
82. Surface induced odd-frequency spin-triplet superconductivity as a veritable signature of Majorana bound states, Subhajit Pal, Colin Benjamin, arXiv:2312.02961.
81. Switching global correlations on and off in a many-body quantum state by tuning local entanglement, Colin Benjamin, Aditya Dash, Chaos 33, 091104 (2023).
80. Majorana fermion induced power-law scaling in the violation of Wiedemann-Franz law, Ritesh Das, Colin Benjamin, arXiv:2309.05492
79. Spin-flip scattering engendered negative ΔT noise, Tusaradri Mohapatra, Colin Benjamin, arXiv:2307.14072.
78. Majorana Thermoelectrics and Refrigeration, Ritesh Das, Colin Benjamin, arXiv:2305.12462.
77. Finite temperature quantum noise correlations as a probe for topological helical edge modes, Sachiraj Mishra, Colin Benjamin, Phys. Rev. B 108, 115301 (2023).
76. Recurrent generation of maximally entangled single particle states via quantum walks on cyclic graphs, Dinesh K. Panda, Colin Benjamin, Phys. Rev. A (Letter) 108, L020401 (2023).
75. Resolving degeneracies in Google search via quantum stochastic walks, Colin Benjamin, Naini Dudhe, J. Stat. Mech. (2024) 013402.
74. Yu-Shiba-Rusinov bound states boost odd-frequency superconductivity, Subhajit Pal, Colin Benjamin, arXiv:2207.05786.
73. Impurity reveals distinct operational phases in quantum thermodynamic cycles, Aditya Prakash, Abhishek Kumar, Colin Benjamin, Phys. Rev. E 106, 054112 (2022).
72. Probing Majorana Bound States via Thermoelectric Transport, Ritesh Das, Colin Benjamin, arXiv:2207.01515.
71. Honing in on a topological zero-bias conductance peak, Subhajit Pal, Colin Benjamin, J. Phys.: Condens. Matter 36, 035601 (2024).
70. Vaccination dilemma in the thermodynamic limit, Colin Benjamin, Arjun Krishnan U M, Chaos 33, 023132 (2023).
69. Josephson quantum spin thermodynamics, Subhajit Pal, Colin Benjamin, J. Phys.: Condens. Matter 34, 305601 (2022).
68. Probing the topological character of superconductors via non-local Hanbury-Brown and Twiss correlations, Tusaradri Mohapatra, Subhajit Pal, Colin Benjamin, Phys. Rev. B 106, 125402 (2022).
67. Magic angle twisted bilayer graphene as a highly efficient quantum Otto engine, Ayush Singh, Colin Benjamin, Phys. Rev. B 104, 125445 (2021).
66. Nash equilibrium mapping vs Hamiltonian dynamics vs Darwinian evolution for some social dilemma games in the thermodynamic limit, Colin Benjamin, Arjun Krishnan U M, The European Physical Journal B 96: 105 (2023).
65. Entanglement and quantum strategies reduce congestion costs in quantum Pigou networks, Naini Dudhe, Colin Benjamin, Physica A: Statistical Mechanics and its Applications 574, 126013 (2021).
64. A thermodynamic probe of the topological phase transition in a Floquet topological insulator, Abhishek Kumar, Colin Benjamin, Journal of Applied Physics 130, 205105 (2021).
63. Exciting odd frequency equal spin-triplet correlations at metal-superconductor interfaces, Subhajit Pal, Colin Benjamin, Phys. Rev. B 104, 054519 (2021).
62. Generating highly entangled states via discrete-time quantum walks with Parrondo sequences, Dinesh K. Panda, B. Varun Govind, Colin Benjamin, Physica A: Statistical Mechanics and its Applications 608, 128256 (2022).
61. Order from chaos in quantum walks on cyclic graphs, Abhisek Panda, Colin Benjamin, Phys. Rev. A 104, 012204 (2021).
60. Testing quantum speedups in exciton transport through a photosynthetic complex using quantum stochastic walks, Naini Dudhe, Pratyush K. Sahoo, Colin Benjamin, Physical Chemistry Chemical Physics 24, 2601 (2022).
59. Thermodynamic susceptibility as a measure of cooperative behavior in social dilemmas, Colin Benjamin, Aditya Dash, Chaos 30, 093117 (2020).
58. Shot Noise as a probe for the pairing symmetry of Iron pnictide superconductors, Colin Benjamin, Tusaradri Mohapatra, EPL(Euro Phys. Lett.), 132 (2020) 47002.
57. Stability of Majorana bound states in the presence of spin-flip scattering, Subhajit Pal, Colin Benjamin, Physica E 126, 114389 (2021),
56. Disordered contacts can localize helical edge electrons, Arjun Mani, Colin Benjamin, J. Phys.: Condens. Matter 31, 34LT01 (2019).
55. Disordered contacts can localize chiral edge electrons, Arjun Mani, Colin Benjamin, Journal of Physics and Chemistry of Solids 139, 109313 (2020).
54. Quantized Josephson phase battery, Subhajit Pal, Colin Benjamin, EPL (Euro Physics Letters) 126, 57002 (2019).
53. Optimal quantum refrigeration in strained graphene, Arjun Mani, Colin Benjamin, J. Phys. Chem. C 123, 22858−22864 (2019).
52. Entanglement renders free riding redundant in the thermodynamic limit, Shubhayan Sarkar, Colin Benjamin, Physica A 521, 607 (2019).
51. Quantum Nash equilibrium in the thermodynamic limit, Shubhayan Sarkar, Colin Benjamin, Quantum Information Processing 18: 122 (2019).
50. Triggers for cooperative behavior in the thermodynamic limit: a case study in Public goods game, Colin Benjamin, Shubhayan Sarkar, Chaos 29, 053131 (2019).
49. Spin-flip scattering engendered quantum spin torque in a Josephson junction, Subhajit Pal, Colin Benjamin, Proceedings of the Royal Society A 475: 20180775 (2019).
48. The emergence of cooperation in the thermodynamic limit, Colin Benjamin, Shubhayan Sarkar, Chaos, Solitons & Fractals 135, 109762 (2020).
47. Are thermal fluctuations the sole reason for finite longitudinal resistance in quantum anomalous Hall experiments?, Arjun Mani, Colin Benjamin, J. Phys.: Condens. Matter 30, 37LT01 (2018).
46. Yu-Shiba-Rusinov bound states induced by a spin flipper in the vicinity of a s-wave superconductor, Subhajit Pal, Colin Benjamin, Scientific Reports 8: 11949 (2018).
45. Helical thermoelectrics and refrigeration Arjun Mani, Colin Benjamin, Phys. Rev. E 97, 022114 (2018).
44. Playing a true Parrondo's game with a three-state coin on a quantum walk, Jishnu Rajendran, Colin Benjamin, EPL (Euro Phys. Lett.) 122, 40004 (2018).
43. Designing a highly efficient graphene quantum spin heat engine, Arjun Mani, Subhajit Pal, Colin Benjamin, Scientific Reports 9: 6018 (2019).
42. Role of helical edge modes in the chiral quantum anomalous Hall state, Arjun Mani, Colin Benjamin, Scientific Reports 8:1335 (2018)
41. Tuning the 0−π Josephson junction with a high spin molecule: Role of tunnel contacts, exchange coupling, electron-electron interactions and high spin states, Subhajit Pal, Colin Benjamin, Scientific Reports 8: 5208 (2018).
40. Strained graphene based highly efficient quantum heat engine operating at maximum power, Arjun Mani, Colin Benjamin, Phys. Rev. E 96, 032118 (2017).
39. Implementing Parrondo's paradox with two coin quantum walks, Jishnu Rajendran, Colin Benjamin, Royal Society Open Science 5, 171599 (2018).
38. Negating van Enk-Pike's assertion on quantum games OR Is the essence of a quantum game captured completely in the original classical game? Md Jabir T, Nilesh Vyas, Colin Benjamin, Physica A: Statistical Mechanics and its Applications 584, 126360 (2021).
37. Characterizing a high spin magnetic impurity via Andreev reflection spectroscopy, Subhajit Pal, Colin Benjamin, Eur. Phys. J. B (2018) 91: 190.
36. Probing helicity and the topological origins of helicity via non-local Hanbury-Brown and Twiss correlations, Arjun Mani, Colin Benjamin, Scientific Reports 7: 6954 (2017).
35. Fragility of non-local edge mode transport in the quantum spin Hall state, Arjun Mani and Colin Benjamin, Phys. Rev. Applied 6, 014003 (2016).
34. Topologically induced fractional Hall steps in the integer quantum Hall regime of MoS2, SK Firoz Islam, Colin Benjamin, Nanotechnology 27, 385203 (2016).
33. A scheme to realize the quantum spin-valley Hall effect in monolayer graphene, SK Firoz Islam, Colin Benjamin, Carbon 110, 304 (2016).
32. Are quantum spin Hall edge modes more resilient to disorder, sample geometry and inelastic scattering than quantum Hall edge modes? Arjun Mani, Colin Benjamin, J. Phys.: Condens. Matter 28 145303 (2016).
31. Adiabatically twisting a magnetic molecule to generate pure spin currents in graphene, Firoz Islam, Colin Benjamin, J. Phys.: Condens. Matter 28 035305 (2015).
30. Do quantum strategies always win? Namit Anand, Colin Benjamin, Quantum Information Processing 14 (11), 4027-4038 (2015).
29. Strain designed Josephson π junction qubits with topological insulators, Colin Benjamin, Euro Physics Letters (EPL) 110, 50003 (2015).
28. Persistent currents in absence of magnetic field in graphene nanorings: The ambiguous role of inter valley scattering, Colin Benjamin, A M Jayannavar, Appl. Phys. Lett. 104, 053112 (2014).
27. How to detect a genuine quantum pump effect in graphene? Colin Benjamin, Applied Physics Letters 103, 043120 (2013).
26. Can dephasing generate non-local spin correlations? Colin Benjamin, Euro Physics Letters (EPL) 96, 67001 (2011).
25. Quantum simulation of molecular collisions using superconducting qubits, E J Pritchett, C. Benjamin, A. Galiautdinov, M. Geller, A. Sornborger, P C Stancil and J. M. Martinis, arXiv:1008.0701
24. Detecting Majorana bound states, Colin Benjamin and Jiannis K. Pachos, Phys. Rev. B 81, 085101 (2010).
23. π-junction qubit in monolayer graphene, Colin Benjamin and Jiannis K. Pachos, Phys.Rev.B 79, 155431 (2009).
22. Entangled states in graphene-detection and use, Colin Benjamin, Graham Creeth and Jiannis K Pachos, J. Phys.: Conf. Ser. 129, 012005 (2008).
21. Detecting entangled states in graphene via crossed Andreev reflection, Colin Benjamin and Jiannis K. Pachos, Phys. Rev. B 78, 235403 (2008).
20. Positive noise cross-correlations in superconducting hybrids: Role of interface transparencies, R. Mélin, C. Benjamin, T. Martin, Phys. Rev. B 77, 094512 (2008).
19. Controllable π junction in a Josephson quantum-dot device with molecular spin, C. Benjamin, T. Jonckheere, A. Zazunov, T. Martin, Eur. Phys. J. B 57: 279 (2007).
18. Detecting a true quantum pump effect, C. Benjamin, Eur. Phys. J. B 52: 403 (2006).
17. Crossed Andreev reflection as a probe for the pairing symmetry of Ferromagnetic-Superconductors, Colin Benjamin, Phys.Rev.B (Rapid Communication) 74, 180503(R)(2006).
16. Nonlocal pure spin current injection via quantum pumping and crossed Andreev reflection, Colin Benjamin and Roberta Citro, Phys. Rev. B 72, 085340 (2005).
15. Resolving the order parameter of High-Tc Superconductors through quantum pumping spectroscopy, Colin Benjamin, Phys.Rev.B 71, 174512 (2005).
14. Quantum spin pumping with adiabatically modulated magnetic barriers, Ronald Benjamin and Colin Benjamin, Phys. Rev. B 69, 085318 (2004).
13. Equilibrium currents in quantum double ring system: A non-trivial role of system-reservoir coupling, Colin Benjamin, A. M. Jayannavar, Int. J. Mod. Phys. B 18, 3343 (2004).
12. Trends in mesoscopic transport, Colin Benjamin and A. M. Jayannavar, National Academy Science Letters 27(5-6):177-186 (2004).
11. Features in evanescent Aharonov-Bohm interferometry, Colin Benjamin and A. M. Jayannavar, Phys. Rev. B 68, 085325 (2003).
10. Fano resonances in presence of dephasing and evanescent modes, Colin Benjamin and A M Jayannavar, Indian J. Physics 77A(6):565 (2003).
9. A comparative study of some models of incoherence at the mesoscopic scale, Colin Benjamin, A. M. Jayannavar, Int. J. Mod. Phys. B 17, 4733 (2003).
8. Survival of Φ0/2 periodicity in presence of incoherence in asymmetric Aharonov-Bohm rings, Colin Benjamin, Swarnali Bandopadhyay, A. M. Jayannavar, Solid State Commmun. 124, 331 (2002).
7. Wave attenuation model for dephasing and measurement of conditional times, A M Jayannavar, Colin Benjamin, Pramana - J Phys 59: 385, (2002).
6. Wave attenuation to clock sojourn times, Colin Benjamin, A. M. Jayannavar, Solid State Commun. 121, 591, (2002).
5. Study of quantum current enhancement, eigenenergy spectra and magnetic moments in a multiply connected system at equilibrium, Colin Benjamin, A. M. Jayannavar, International Journal of Modern Physics B, 16, 1787 (2002).
4. Dephasing via stochastic absorption: A case study in Aharonov-Bohm oscillations, Colin Benjamin and A. M. Jayannavar, Phys. Rev. B 65, 153309 (2002).
3. Quantum current enhancement effect in hybrid rings at equilibrium, Colin Benjamin, A. M. Jayannavar, Indian J. Physics. A, 77A(2), 119-123 (2003).
2. Current magnification effect in mesoscopic systems at equilibrium, Colin Benjamin and A. M. Jayannavar, Phys. Rev. B 64, 233406 (2001).
1. Role of quantum entanglement due to a magnetic impurity on current magnification effect in mesoscopic open rings, Colin Benjamin, Sandeep K. Joshi, Debendranath Sahoo, A. M. Jayannavar, Mod. Phys. Lett. B 15, 19 (2001).
THEORETICAL NANOSCIENCE
QUANTUM INFORMATION THEORY
GAME THEORY
Recent Papers
Research Grants
Project Associate I/II: Vacant
Ph D students
SRF: Tusaradri Mohapatra, Dinesh K. Panda, Sachiraj Mishra
Masters: Rajdeep Tah
Recent Talks
1. It was a nice experience sharing my research on "On two applications of quantum walks" in QIQT 2023, organized by IISER Kolkata, on 29th May 2023. You can watch it here: https://www.youtube.com/watch?v=wvGpaB4Ihlo
2. It was really nice to share some of the research on "Discrete-time quantum walks v Continuous-time quantum walks v Quantum stochastic walks" done in our group at QIQT-2022. You can watch it here: https://www.youtube.com/watch?v=z6ahg9Cru30
3. On the occasion of World Quantum Day, we at the Theoretical Sciences Lab, NISER hosted an online event with a series of short talks outlining the work that we do for a general audience. Please watch it here: https://www.youtube.com/watch?v=qKTH7QRNZ-Y
4. I had a wonderful opportunity to share some of my research on "Quantum thermoelectrics v Quantum thermodynamics " with the Summer School on Quantum Information and Quantum Technology attendees in June 2021 at IISER Kolkata. You can watch it here: https://www.youtube.com/watch?v=u4quroEnPPE
5. It was fun to share some of my research and the latest developments in the US(5 eyes) v China "Quantum computation" race, in the FDP program at GITAM, Bengaluru, Jan. 2021. Watch it here: https://www.youtube.com/watch?v=ZDepEdBKQBU