Disclosed are a method and device for virtually simulating a
quantum communication circuit. The
simulation method according to the present invention comprises the steps of: displaying, on a display unit, a
simulation screen including a first selection window, a second selection window, and a work window, wherein the first selection window is an area in which a plurality of element items associated one-to-one with a plurality of element blocks that can be used for modeling a
quantum communication circuit are displayed, and the second selection window is an area in which a plurality of connection line items associated one-to-one with a plurality of block connection lines that can be used for modeling the
quantum communication circuit are displayed; disposing an element block associated with an element item selected in the first selection window in the work window in response to a first
circuit modeling request action; disposing a block connection line associated with a connection
line item selected in the second selection window in the work window in response to a second
circuit modeling request action; connecting each of the block connection lines disposed in the work window to two of the plurality of element blocks disposed in the work window, wherein at least one pair of element blocks among the plurality of element blocks disposed in the work window are interconnected by one of the block connection lines disposed in the work window to enable the bidirectional transfer of optical signals; and executing, in response to a
simulation request action, a simulation of the quantum communication circuit virtually modeled in the work window by means of the plurality of element blocks and the plurality of block connection lines disposed in the work window.