Abstract: A method and system for identifying entangled photons includes generating a plurality of sets of four entangled photons, wherein one pair of photons of each set are time correlated, thereby indicating that another pair of four entangled photons are entangled. Quantum metadata comprising a time window corresponding to the generated plurality of sets of four entangled photons is collected. A coincidence of one pair of photons of each of the plurality of the sets of four entangled photons is determined. A state value of at least one photon of the other pair of each of the number of the sets of four entangled photons is determined. Ordered lists of coincidences are compared to ordered lists of state values to determine entangled state information. Time window are compared to times corresponding to the ordered lists. Error conditions are generated if conditions are met.

Abstract: A support garment (10) includes a front panel (12) and a back panel (14). The front panel (12) includes an inner layer (18) and an outer layer (20). The inner layer (18) includes a first cup (34), a second cup (34), and a first pair of straps (62). The outer layer (20) includes a second pair of straps (64). The outer layer (20) is configured to provide compression when worn. The first pair of straps (62) and the second pair of straps (64) each extend between the front panel (12) and the back panel (14). The support garment (10) also includes a band (16) defining a torso opening (22). The band (16) extends below the front panel (12) and the back panel (14). The support garment (10) is configured to apply lateral tension to the first cup (34) and the second cup (34).

Abstract: An entangled quantum state receiver includes an optical detector that generates an electrical signal having a signal characteristic in response to detection of a single photon. A first electrical circuit generating an electrical signal having a predetermined duration when the signal characteristic is present at the input. A clock generates a clock waveform with a period. A second electrical circuit generates a state value when the electrical signal has the predetermined duration during a cycle of the clock waveform. A processor is configured to determine received entangled state information from the state value and configured to adjust the clock period based on a background photon count at the optical detector.

Abstract: An optical source is configured to simultaneously generate a set of four time-correlated photons comprising a first pair of photons and a second pair of photons. An interferometer is configured to receive a photon from the first pair of photons and configured to receive another photon from the first pair of photons. A first and a second detector configured to generate an electrical signal in response to measurements of an output of the interferometer. A third detector is configured to generate an electrical signal in response to measurement of a photon from the second pair of photons. A fourth detector is configured to generate an electrical signal in response to measurement of another photon from the second pair of photons.

Abstract: A method and system for identifying entangled photons includes generating a plurality of sets of four entangled photons, wherein one pair of photons of each set are time correlated, thereby indicating that another pair of four entangled photons are entangled. Quantum metadata comprising a time window corresponding to the generated plurality of sets of four entangled photons is collected. A coincidence of one pair of photons of each of the plurality of the sets of four entangled photons is determined. A state value of at least one photon of the other pair of each of the number of the sets of four entangled photons is determined. Ordered lists of coincidences are compared to ordered lists of state values to determine entangled state information. Time window are compared to times corresponding to the ordered lists. Error conditions are generated if conditions are met.

Abstract: A quantum coding system coupled to a quantum channel that includes an entanglement server that generates a first and second entangled qubit. A first cache coupled to the entanglement server and comprising a quantum store configured to store qubits and a classical store configured to store classical tagging information associated with the stored qubits, the first cache configured to provide the first entangled qubit at an output at a first time that is based on classical tagging information associated with the entangled qubit pairs. A transmitter coupled to the first quantum cache and coupled to the quantum channel, the transmitter configured to modulate the first entangled qubit pairs from the first cache using classical information, thereby producing coded classical information, and to provide the modulated qubit to the quantum channel.

Abstract: A dwelling for accommodating users, the dwelling including at least one dividing module provided with respect to a floor surface for separating the floor surface into at least two separate living spaces, the at least one dividing module being selectively adjustable in position with respect to the floor surface for providing the dwelling with selectively adjustable living spaces. The dwelling also includes a displacement assembly operatively connectable to the at least one dividing module for displacing said at least one dividing module about the floor surface.

Abstract: An entangled quantum state receiver includes an optical detector that generates an electrical signal having a signal characteristic in response to detection of a single photon. A first electrical circuit generates an electrical signal having a predetermined duration at an output when the signal characteristic is present. A clock generates a clock with a period, wherein the predetermined duration is greater than the period. A second electrical circuit generates and stores a state or a time in a memory location, where the state has a first state value when the electrical signal having the predetermined duration is present during a clock cycle and has a second state value when the electrical signal having the predetermined duration is not present during the clock cycle. A processor determines received entangled state information from the state value stored in the memory location or from time stored in the memory location.

Abstract: An entangled quantum cache includes a quantum store that receives a plurality of quantum states and is configured to store and order the plurality of quantum states and to provide select ones of the stored and ordered plurality of quantum states to a quantum data output at a first desired time. A fidelity system is configured to determine a fidelity of at least some of the plurality of quantum states. A classical store is coupled to the fidelity system and configured to store classical data comprising the determined fidelity information and an index that associates particular ones of classical data with particular ones of the plurality of quantum states and to supply at least some of the classical data to a classical data output at a second desired time. A processor is connected to the classical store and determines the first time based on the index.

Abstract: Method and apparatus for synchronizing and locking clocks identifies entangled pairs of photons by comparing a first and second list of measured state values of single photons, wherein the first list is compiled by photon arrival times measured using a first clock and the second list is compiled by photon arrival times measured using a second clock. Entangled pairs of photons are identified by a match of the measured state values of single photons in their respective lists. Elapsed times of the first and second clocks are determined by taking the difference between arrival times of respective identified entangled pairs of photons measured using their respective clocks. A rate of one of the first and second clocks is changed based on a difference between the elapsed times, thereby synchronizing the first and second clocks. Clocks are locked by repeating.

Abstract: A system for imaging using entangled photons includes an optical source that generates a set of four entangled photons correlated in time, such that detection of any one pair of the four entangled photons indicates that all four of the entangled photons are entangled. The optical source couples a first photon to a first path, a second photon to a second path, a third photon to a third path, and a fourth photon to a fourth path. A first detector detects the first photon of the set of four entangled photons. An object positioned at an object plane produces a modulation of the first photon. A spatial sampler detects the second photon. A second detector detects the third photon. A third detector detects the fourth photon. A first coincidence detector determines a coincidence between a detection of the first photon of the set of four entangled photons and a detection of the third photon of the set of four entangled photons.

Abstract: An artificial intelligence based autonomous tractor system for use in agricultural areas includes a tractor, a steering wheel for providing guidance of the tractor to a determined direction, and a drive element embodied for electro-hydraulic steering wheel manipulation and including an open cycle hydraulic circuit which provides guidance of the steering wheel to the determined direction for providing movement of the steering wheel, in order to provide autonomous movement of the tractor.

Abstract: A method and system for identifying entangled photons includes generating a plurality of sets of four entangled photons, wherein a first pair of photons in each of the plurality of sets of four entangled photons are time correlated indicating that a second pair of photons in a same one of each of the plurality of sets of four entangled photons are time correlated. A coincidence time of a first pair of photons of each of the plurality of sets of four entangled photons is determined and coincidence times are recorded as a first quantum data set. A coincidence time of a second pair of photons of each of the plurality of sets of four entangled photons determined and coincidence times is recorded as a second quantum data set such that the first quantum data set and the second quantum data set comprise at least some correlated coincidence times.

Abstract: A method for identifying three entangled photons includes generating a set of first, second, and third entangled photons correlated in time and interfering the first and second entangled photons based on a difference between a first optical path from an output of an optical source that generates the first entangled photon to a first optical input to an interferometric beam splitter and a second optical path from an output of the optical source that generates the second entangled photon to a second input of the interferometric beam splitter. A first electrical signal is generated in response to detection of a first photon generated by the interfering of the first and second entangled photons. A second electrical signal is generated in response to detection of a second photon generated by the interfering of the first and second entangled photons. A third electrical signal is generated in response to detection of the third entangled photon.

Abstract: A position sensor, in particular, intended for detecting the torsion of a steering column, includes a first magnetized rotor structure comprising magnets, a second stator structure comprising two rings extended by teeth that are axially oriented and interlocked, and a third stationary collector structure including two flux collection parts that define at least one air gap in which at least one magnet-sensitive element is placed. The flux collection parts and the ring gears define a magnetic permeance independent of the relative radial and angular position of the second stator structure with respect to the third collector structure. The collection parts comprise an angular collection sector and a primary collection zone continued by a prolongation having a secondary collection zone. The secondary collection zones end in flat extensions forming two poles of the air gap. The transverse median plane of the air gap intersects at least one of the prolongations.

Abstract: Quantum information system with metadata management includes an entangled quantum state source that generates quantum information in quantum form comprising two entangled states. A metadata collector generates metadata in classical form associated with the generated quantum information. A first receiver measures one of the two entangled states to generate quantum state information in classical form comprising a first state value and first TOA. A second receiver is configured to measure the other entangled states to generate quantum state information in classical form comprising a second state value and second TOA. A first processor generates a comb using the first TOA and the metadata to tag the generated quantum state information in classical form comprising the first state value. A second processor coupled to the first processor and to the second receiver is configured to process the comb and metadata to determine correlated data associated with the two entangled states.

Abstract: Quantum information system with metadata management includes an entangled quantum state source that generates quantum information in quantum form comprising two entangled states. A metadata collector generates metadata in classical form associated with the generated quantum information. A first receiver measures one of the two entangled states to generate quantum state information in classical form comprising a first state value and first TOA. A second receiver is configured to measure the other entangled states to generate quantum state information in classical form comprising a second state value and second TOA. A first processor generates a comb using the first TOA and the metadata to tag the generated quantum state information in classical form comprising the first state value. A second processor coupled to the first processor and to the second receiver is configured to process the comb and metadata to determine correlated data associated with the two entangled states.

Abstract: A removable crossbar assembly and an exercise ladder arrangement including the removable crossbar assembly. The crossbar assembly is configured to be secured to an exercise ladder to provide an exercise crossbar disposed between two fixed exercise crossbars on the exercise ladder. The crossbar assembly may also include a brace for securing an independent exercise device to the crossbar assembly. The crossbar assembly advantageously provides the placement of a crossbar for exercising closer to the desired height of a participant, e.g., closer to the should height of a participant, to increase the efficacy of the exercise.

Abstract: A method of generating a verification code includes measuring a time of arrival and a corresponding first or second state value of a plurality of first photons and a plurality of second photons, where respective ones of the plurality of first photons are entangled with respective ones of a plurality of second photons in a first basis, which is time, and entangled in a second basis. A first and a second ordered list of the measured times of arrival of the plurality of respective first and second photons is generated. Time-of-arrival matches between the first ordered list and the second ordered list are determined. First or second state values that correspond to the determined time-of-arrival matches between the first ordered list and the second ordered list are determined. A verification code using some of the determined first or second state values that correspond to the determined time-of-arrival matches is generated.

Abstract: A method of generating a nonce includes measuring a TOA and a corresponding first or second state value of a plurality of first photons, wherein respective ones of the plurality of first photons are entangled with respective ones of a plurality of second photons in a first basis, which is time, and entangled in a second basis. A first ordered list of the measured TOAs of the plurality of first photons is generated. A TOA and a corresponding first or second state value of the plurality of second photons are measured. A second ordered list of the measured TOA of the plurality of second photons is generated. TOA matches between the first ordered list and the second ordered list are determined. The first or second state values that correspond to the determined TOA matches between the first ordered list and the second ordered list are determined. A shared secret random number is determined using the first or second state values that correspond to the determined TOA matches.