Performing network optimization using quantum communication driver (QCD) computing devices based on measured network attributes of a communications network is disclosed. In one example, an interceptor proxy computing device receives a message sent by a sending computing device and directed to a recipient computing device via a communications network. The interceptor proxy computing device determines, based on a network attribute of the communications network, whether to perform network optimization for the communications network. If so, the interceptor proxy computing device sends the message to a QCD computing device, which performs superdense encoding of the message using one or more first qubits that are each in an entangled state with a corresponding one or more second qubits of a QCD computing device coupled to the recipient computing device. The first qubit(s) are then sent to the QCD computing device coupled to the recipient computing device.

Performing network optimization using quantum communication driver (QCD) computing devices based on measured network attributes of a communications network is disclosed. In one example, an interceptor proxy computing device receives a message sent by a sending computing device and directed to a recipient computing device via a communications network. The interceptor proxy computing device determines, based on a network attribute of the communications network, whether to perform network optimization for the communications network. If so, the interceptor proxy computing device sends the message to a QCD computing device, which performs superdense encoding of the message using one or more first qubits that are each in an entangled state with a corresponding one or more second qubits of a QCD computing device coupled to the recipient computing device. The first qubit(s) are then sent to the QCD computing device coupled to the recipient computing device.

A wireless communication system comprises a base station and one or more relay docks and transmits directional wave signals between components using high frequency waves, such as millimeter waves. A beam forming decision engine utilizes position information collected from one or more position or motion sensors of a user device to determine a direction in which to form a directional wave signal being transmitted between components of the wireless communication system.

Provided is a phased array antenna which can be used in the millimeter wave band and whose cost is lower than that of a conventional phased array antenna. The phased array antenna (1) includes: an optical modulator (OM) configured to generate a signal light beam SL by carrying out intensity modulation on a carrier light beam CL by use of a sum signal V.sub.IF+LO(t), the sum signal V.sub.IF+LO(t) being obtained by adding an intermediate frequency signal V.sub.IF(t) and a local signal V.sub.LO(t); and a time delay device (TD) configured to generate delayed signal light beams SL1, SL2, . . . and SLn by imparting time delays t1, t2, . . . and tn to the signal light beam SL. Each feeding circuit (Fi) generates, from a corresponding delayed signal light beam SLi, a delayed radio frequency signal V.sub.RF(tti) to be supplied to an antenna element (Ai).

A high-electron mobility transistor (HEMT) array terahertz wave modulator loaded in a waveguide is provided, which belongs to the technical field of electromagnetic functional devices and focuses on fast dynamic functional devices in the terahertz band. The device comprises a waveguide cavity and a modulation chip. The modulation chip comprises a semiconductor material substrate, a heterostructure material epitaxial layer, an artificial microstructure, and a socket circuit. The applied voltage controls the distribution change of the two-dimensional electron gas in the HEMT, which in turn controls the resonance mode conversion in the artificial microstructure, thereby control the transmission of electromagnetic waves in the waveguide. The modulator has a modulation depth of up to 96% and a modulation rate above 2 GHz. The invention can be realized by using micro-processing technology, and the preparation process is mature and reliable.

A high-electron mobility transistor (HEMT) array terahertz wave modulator loaded in a waveguide is provided, which belongs to the technical field of electromagnetic functional devices and focuses on fast dynamic functional devices in the terahertz band. The device comprises a waveguide cavity and a modulation chip. The modulation chip comprises a semiconductor material substrate, a heterostructure material epitaxial layer, an artificial microstructure, and a socket circuit. The applied voltage controls the distribution change of the two-dimensional electron gas in the HEMT, which in turn controls the resonance mode conversion in the artificial microstructure, thereby control the transmission of electromagnetic waves in the waveguide. The modulator has a modulation depth of up to 96% and a modulation rate above 2 GHz. The invention can be realized by using micro-processing technology, and the preparation process is mature and reliable.

A physical area network described herein enables significantly improved health monitoring and treatment by utilizing internal (in-body) mechanisms and information and external mechanisms and information.

A physical area network described herein enables significantly improved health monitoring and treatment by utilizing internal (in-body) mechanisms and information and external mechanisms and information.

Systems and methods are provided for flux control of a qubit. A quantum system includes a microwave transmitter configured to provide a continuous microwave tone, and a qubit configured such that transition energy of the qubit between a ground state of the qubit and a first excited state of the qubit is tunable via an applied flux. The qubit also has an inductive element responsive to the continuous microwave tone to produce a Rabi oscillation within the qubit. A flux source is configured to apply a flux to the qubit to selectively tune the transition energy of the qubit, such that the transition energy of the qubit can be tuned to a frequency of the Rabi oscillation or detuned from the Rabi oscillation.

Systems and methods are provided for flux control of a qubit. A quantum system includes a microwave transmitter configured to provide a continuous microwave tone, and a qubit configured such that transition energy of the qubit between a ground state of the qubit and a first excited state of the qubit is tunable via an applied flux. The qubit also has an inductive element responsive to the continuous microwave tone to produce a Rabi oscillation within the qubit. A flux source is configured to apply a flux to the qubit to selectively tune the transition energy of the qubit, such that the transition energy of the qubit can be tuned to a frequency of the Rabi oscillation or detuned from the Rabi oscillation.