Figure 1

(Color online) (a) Schematic setup to implement the controlled phase flip (CPF) gate between flying qubits encoded as the coherent superposition of polarization of single photon pulse and stationary qubits encoded in atoms or ions. (b) Energy level of diagram of atoms or ions.Reuse & Permissions

Figure 2

(Color online) (a) Schematic setup to realize the SWAP gate between one atom or ion and single photon pulse. HWP is a half wave plate; the switches K1 and K2 are controlled to transmit or reflect one photon according to (b). C is a circulator. DL is the time delay, for instance, fiber loops for storage time $T+Ta$, where $Ta$ is the time needed by a $R$ rotation of one atom or ion. (b) Left: denotes the working state of the switch K1 is transmitted and kept until $t=T$, then its state is reflected from $t=T$. Right: denote the working state of the switch k2 is transmitted and kept until $t=T+Ta$, then K2 is on a reflected state from $t=T+Ta$ to $t=2T+2Ta$, finally the working state of K2 is transmitted from $t=2T+2Ta$.Reuse & Permissions

Figure 3

(Color online) Schematic setup for teleportation of atomic or ionic states. Photon 1 and photon 2 are prepared in polarization-entangled states. Photon 1 is flying to one atom or ion trapped in one cavity with PBS, mirror and HWP, while photon 2 is flying to another atom or ion in another cavity to map its information to the atom whose setup is shown in Fig. 2.Reuse & Permissions