Tunable quantum routing via asymmetric intercavity couplings

Routing efficiently the photon signals between different channels is essential in an optical quantum network. Recent chiral waveguide–emitter coupling techniques are widely applied to improve the routing capabilities in waveguide systems. As a possible alternative, we put forward a proposal to control the quantum routing of photons by adjusting asymmetric intercavity couplings on both sides of a cross-cavity in an X-shaped coupled-resonator waveguide. With the robust and tunable intercavity couplings, high transfer rate between quantum channels and expected probability distributions of two ports in the same output channel can be easily implemented. The asymmetric intercavity coupling may be utilized as a new handle to efficiently control the single-photon routing.

[1]  Xuedong Hu,et al.  Quantum memory and gates using a Λ -type quantum emitter coupled to a chiral waveguide , 2018, Physical Review A.

[2]  Franco Nori,et al.  Single-photon router: Coherent control of multichannel scattering for single photons with quantum interferences , 2013, 1310.7286.

[3]  H. J. Kimble,et al.  The quantum internet , 2008, Nature.

[4]  M. S. Skolnick,et al.  Chirality of nanophotonic waveguide with embedded quantum emitter for unidirectional spin transfer , 2016, Nature communications.

[5]  Yong Li,et al.  Generalized Stern-Gerlach effect for chiral molecules. , 2007, Physical review letters.

[6]  Esteban Moreno,et al.  Nonreciprocal few-photon routing schemes based on chiral waveguide-emitter couplings , 2016, 1608.04928.

[7]  L Frunzio,et al.  ac Stark shift and dephasing of a superconducting qubit strongly coupled to a cavity field. , 2005, Physical review letters.

[8]  Ai-Xi Chen,et al.  Quantum information-holding single-photon router based on spontaneous emission , 2017 .

[9]  Xi Chen,et al.  Implementation of single-photon quantum routing and decoupling using a nitrogen-vacancy center and a whispering-gallery-mode resonator-waveguide system. , 2017, Optics express.

[10]  Franco Nori,et al.  Quantum supercavity with atomic mirrors , 2008, 0809.4063.

[11]  G. S. Agarwal,et al.  Optomechanical systems as single-photon routers , 2011, 1109.4361.

[12]  Kerry J. Vahala,et al.  Efficient routing of single photons with one atom and a microtoroidal cavity , 2009 .

[13]  J. Rarity,et al.  Photonic quantum technologies , 2009, 1003.3928.

[14]  Lan Zhou,et al.  Coherent control of photon transmission: Slowing light in a coupled resonator waveguide doped with Lambda atoms , 2007 .

[15]  Anders S Sørensen,et al.  Quantum Networks with Chiral-Light-Matter Interaction in Waveguides. , 2016, Physical review letters.

[16]  Alexandre Blais,et al.  Quantum information processing with circuit quantum electrodynamics , 2007 .

[17]  S. Girvin,et al.  Strong coupling of a single photon to a superconducting qubit using circuit quantum electrodynamics , 2004, Nature.

[18]  T. Palomaki,et al.  Demonstration of a single-photon router in the microwave regime. , 2011, Physical review letters.

[19]  Yong Li,et al.  Quantum routing of single photons with a cyclic three-level system. , 2013, Physical review letters.

[20]  C. Zu,et al.  Experimental demonstration of a quantum router , 2015, Scientific Reports.

[21]  Xingmin Li,et al.  Ideal photonic absorption, emission, and routings in chiral waveguides , 2018, Optics Communications.

[22]  Jin Dong Song,et al.  Deterministic photon-emitter coupling in chiral photonic circuits. , 2014, Nature nanotechnology.

[23]  Wen-Zhao Zhang,et al.  Single-photon multi-ports router based on the coupled cavity optomechanical system , 2016, Scientific Reports.

[24]  Ai-Xi Chen,et al.  Information-holding quantum router of single photons using natural atom , 2016 .

[25]  Chun Wu,et al.  Single-Photon Routing for a L-Shaped Channel , 2018 .

[26]  L Frunzio,et al.  Approaching unit visibility for control of a superconducting qubit with dispersive readout. , 2005, Physical review letters.

[27]  Yu-xi Liu,et al.  Quantum switch for single-photon transport in a coupled superconducting transmission-line-resonator array , 2009, 0904.0844.

[28]  Jürgen Volz,et al.  Quantum optical circulator controlled by a single chirally coupled atom , 2016, Science.

[29]  Keyu Xia,et al.  All-Optical Switching and Router via the Direct Quantum Control of Coupling between Cavity Modes , 2013 .

[30]  Bing Wang,et al.  Single photon transport in two waveguides chirally coupled by a quantum emitter. , 2016, Optics express.

[31]  Esteban Moreno,et al.  Chiral route to spontaneous entanglement generation , 2015, 1507.05750.

[32]  Peter Zoller,et al.  Quantum optics of chiral spin networks , 2014, 1411.2963.

[33]  Franco Nori,et al.  Optical selection rules and phase-dependent adiabatic state control in a superconducting quantum circuit. , 2005, Physical review letters.

[34]  John C. Schotland,et al.  Multiqubit entanglement in bidirectional-chiral-waveguide QED , 2016, 1604.03646.

[35]  Dirk Englund,et al.  Integrated quantum optical networks based on quantum dots and photonic crystals , 2011 .

[36]  Franco Nori,et al.  Controllable scattering of a single photon inside a one-dimensional resonator waveguide. , 2008, Physical review letters.

[37]  C. Hu,et al.  Photonic transistor and router using a single quantum-dot-confined spin in a single-sided optical microcavity , 2017, Scientific Reports.

[38]  Lan Zhou,et al.  T-shaped single-photon router. , 2014, Optics express.

[39]  H. J. Kimble,et al.  Efficient routing of single photons with one atom and a microtoroidal cavity , 2009, 2009 Conference on Lasers and Electro-Optics and 2009 Conference on Quantum electronics and Laser Science Conference.

[40]  John C. Schotland,et al.  Few-photon induced transient entanglement in multi-qubit bi-directional chiral waveguide QED , 2016 .

[41]  Lian-Fu Wei,et al.  Targeted photonic routers with chiral photon-atom interactions , 2018 .

[42]  Jürgen Volz,et al.  Nanophotonic Optical Isolator Controlled by the Internal State of Cold Atoms , 2015 .

[43]  G. S. Agarwal,et al.  Optomechanical Systems as Single Photon Routers , 2012 .

[44]  Serge Rosenblum,et al.  All-optical routing of single photons by a one-atom switch controlled by a single photon , 2014, Science.

[45]  Artur Ekert,et al.  A proposal for the implementation of quantum gates with photonic-crystal waveguides , 2007 .

[46]  T. Asano,et al.  High-Q photonic nanocavity in a two-dimensional photonic crystal , 2003, Nature.